feat(strm): 同名多版本择优 / keep_ext，并支持合并展示与播放切换 (#30)

* feat(strm): 同名多版本择优/keep_ext，并支持合并展示与播放切换

默认对同名不同扩展（如 .mkv/.mp4）按体积→mtime→扩展名优先级择优生成一条 strm，冲突打日志；开启 keep_ext 则分别生成 name.ext.strm。媒体详情与播放器可切换版本，列表继续合并同片多版本，Emby MediaSources 名称区分容器/分辨率。

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* fix(meta): 边车匹配忽略 .mkv.strm 中间扩展，同片共享 NFO/海报/字幕

NFO、海报、字幕与刮削写出统一使用 mediaSidecarBase 词干，使竞女01.mkv.strm
与竞女01.mp4.strm 配对同一套 竞女01.nfo / 竞女01-poster / 竞女01.srt；
仍兼容历史上的 name.mkv.nfo 命名。

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

* fix(emby): People NFO 按共享词干匹配 keep_ext strm

resolveMediaPeople 改为查找竞女01.nfo（并兼容旧的竞女01.mkv.nfo），
同时修正把 decodeNFOFile 的 partial 误当 ok 导致完整 NFO 被跳过的问题。

Co-authored-by: truewhile <truewhile@users.noreply.github.com>

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: truewhile <truewhile@users.noreply.github.com>

cmd/server/router.go

@@ -70,8 +70,11 @@ func serveSPA(r *gin.Engine, root fs.FS) {
 		r.GET(rootFile, serveFSFile(root, name))
 		r.HEAD(rootFile, serveFSFile(root, name))
 	}
-	r.NoRoute(middleware.GzipStatic(), func(c *gin.Context) {
-		path := c.Request.URL.Path
+		r.NoRoute(middleware.GzipStatic(), func(c *gin.Context) {
+			if handler.TryHandleEmbyNormalizedRoute(c, r) {
+				return
+			}
+			path := c.Request.URL.Path
 		if shouldBypassSPAFallback(path) {
 			c.Status(http.StatusNotFound)
 			return

internal/handler/auth.go

@@ -120,6 +120,25 @@ func changePasswordHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
-		c.Status(http.StatusNoContent)
+			c.Status(http.StatusNoContent)
+		}
+	}
+
+func temporaryPasswordHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		uid, ok := c.Get(middleware.CtxUserID)
+		if !ok || uid == nil {
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "unauthorized"})
+			return
+		}
+		code, expireSec, err := svc.Auth.CreateTemporaryPassword(c.Request.Context(), uid.(string))
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{
+			"code":       code,
+			"expires_in": expireSec,
+		})
 	}
 }

internal/handler/emby_auth.go

@@ -257,7 +257,10 @@ func embyClientInfoFromRequest(c *gin.Context) embyClientInfo {
 			firstHeaderValue(c, "X-Emby-Client", "X-MediaBrowser-Client"),
 			c.Query("Client"),
 			c.Query("client"),
+			c.Query("X-Emby-Client"),
+			c.Query("X-MediaBrowser-Client"),
 			auth["Client"],
+			auth["client"],
 		),
 	}
 	ua := strings.TrimSpace(c.GetHeader("User-Agent"))
@@ -315,10 +318,36 @@ func embyClientFromUserAgent(ua string) string {
 		return "Emby"
 	case strings.Contains(lower, "jellyfin"):
 		return "Jellyfin"
+	case strings.Contains(lower, "capyplayer") || strings.Contains(lower, "capy player") || strings.Contains(lower, "卡皮巴拉"):
+		return "CapyPlayer"
+	case strings.Contains(lower, "senplayer") || strings.Contains(lower, "sen player") || strings.Contains(lower, "森播"):
+		return "SenPlayer"
 	case strings.Contains(lower, "yamby"):
 		return "Yamby"
 	case strings.Contains(lower, "vidhub"):
 		return "VidHub"
+	case strings.Contains(lower, "fileball"):
+		return "Fileball"
+	case strings.Contains(lower, "hamhub"):
+		return "HamHub"
+	case strings.Contains(lower, "afusekt") || strings.Contains(lower, "afuse"):
+		return "AfuseKt"
+	case strings.Contains(lower, "cony"):
+		return "Cony"
+	case strings.Contains(lower, "kodi"):
+		return "Kodi"
+	case strings.Contains(lower, "mrmc"):
+		return "MrMC"
+	case strings.Contains(lower, "forward"):
+		return "Forward"
+	case strings.Contains(lower, "alpha"):
+		return "Alpha"
+	case strings.Contains(lower, "dandanplay") || strings.Contains(lower, "弹弹play"):
+		return "DanDanPlay"
+	case strings.Contains(lower, "potplayer"):
+		return "PotPlayer"
+	case strings.Contains(lower, "vlc"):
+		return "VLC"
 	case strings.Contains(lower, "hills"):
 		return "Hills"
 	default:
@@ -343,7 +372,7 @@ func embyDeviceFromUserAgent(ua string) string {
 		return "Mac"
 	case strings.Contains(lower, "linux"):
 		return "Linux PC"
-	case strings.Contains(lower, "appletv") || strings.Contains(lower, "apple tv"):
+	case strings.Contains(lower, "appletv") || strings.Contains(lower, "apple tv") || strings.Contains(lower, "appletvos"):
 		return "Apple TV"
 	default:
 		return ""

internal/handler/emby_compat_features_test.go

@@ -0,0 +1,594 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/glebarez/sqlite"
+	"go.uber.org/zap"
+	"gorm.io/gorm"
+
+	"github.com/truewhile/MeBox/internal/config"
+	"github.com/truewhile/MeBox/internal/middleware"
+	"github.com/truewhile/MeBox/internal/model"
+	"github.com/truewhile/MeBox/internal/repository"
+	"github.com/truewhile/MeBox/internal/service"
+)
+
+func TestNormalizeEmbyPath(t *testing.T) {
+	tests := []struct {
+		input    string
+		wantPath string
+		changed  bool
+	}{
+		{
+			input:    "/emby/System/Info",
+			wantPath: "/emby/system/info",
+			changed:  true,
+		},
+		{
+			input:    "/emby/emby/System/Info",
+			wantPath: "/emby/system/info",
+			changed:  true,
+		},
+		{
+			input:    "/emby/emby/emby/items/123/playbackInfo",
+			wantPath: "/emby/items/123/playbackinfo",
+			changed:  true,
+		},
+		{
+			input:    "//emby//System//Info//Public",
+			wantPath: "/emby/system/info/public",
+			changed:  true,
+		},
+		{
+			input:    "/Items/msgo-series-1/PlaybackInfo",
+			wantPath: "/items/msgo-series-1/playbackinfo",
+			changed:  true,
+		},
+		{
+			input:    "/Videos/m-123/Master.m3u8",
+			wantPath: "/videos/m-123/master.m3u8",
+			changed:  true,
+		},
+		{
+			input:    "/api/unknown/other",
+			wantPath: "/api/unknown/other",
+			changed:  false,
+		},
+	}
+
+	for _, tt := range tests {
+		gotPath, changed := NormalizeEmbyPath(tt.input)
+		if gotPath != tt.wantPath || changed != tt.changed {
+			t.Errorf("NormalizeEmbyPath(%q) = (%q, %v), want (%q, %v)", tt.input, gotPath, changed, tt.wantPath, tt.changed)
+		}
+	}
+}
+
+func TestEmbyDuplicatePrefixHandling(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := db.AutoMigrate(&model.User{}); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	repos := repository.New(db)
+	svc := &service.Container{
+		Repo: repos,
+		Emby: service.NewEmbyService(nil, nil, repos),
+	}
+
+	router := gin.New()
+	registerEmbyRoutes(router, "secret", svc)
+
+	// 模拟重复拼接前缀的客户端请求: /emby/emby/System/Info/Public
+	req := httptest.NewRequest(http.MethodGet, "/emby/emby/System/Info/Public", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected 200 OK for /emby/emby/System/Info/Public, got %d: %s", w.Code, w.Body.String())
+	}
+	if !strings.Contains(w.Body.String(), "ServerName") {
+		t.Fatalf("expected server info body, got: %s", w.Body.String())
+	}
+}
+
+func TestEmbyMixedCaseHandling(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := db.AutoMigrate(&model.User{}); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	repos := repository.New(db)
+	svc := &service.Container{
+		Repo: repos,
+		Emby: service.NewEmbyService(nil, nil, repos),
+	}
+
+	router := gin.New()
+	registerEmbyRoutes(router, "secret", svc)
+
+	// 混合大小写驼峰: /emby/system/Info/Public
+	req := httptest.NewRequest(http.MethodGet, "/emby/system/Info/Public", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected 200 OK for /emby/system/Info/Public, got %d: %s", w.Code, w.Body.String())
+	}
+}
+
+func TestEmbyClientIdentification(t *testing.T) {
+	tests := []struct {
+		name       string
+		ua         string
+		query      string
+		headerAuth string
+		wantClient string
+	}{
+		{
+			name:       "CapyPlayer via UA",
+			ua:         "CapyPlayer/1.2.0 (iOS)",
+			wantClient: "CapyPlayer",
+		},
+		{
+			name:       "SenPlayer via UA",
+			ua:         "SenPlayer/2.1",
+			wantClient: "SenPlayer",
+		},
+		{
+			name:       "Fileball via UA",
+			ua:         "Fileball/1.0.0",
+			wantClient: "Fileball",
+		},
+		{
+			name:       "Kodi via UA",
+			ua:         "Kodi/20.2",
+			wantClient: "Kodi",
+		},
+		{
+			name:       "Client in query",
+			ua:         "CustomApp/1.0",
+			query:      "?X-Emby-Client=CapyPlayer",
+			wantClient: "CapyPlayer",
+		},
+		{
+			name:       "Client in auth header",
+			ua:         "Custom/1.0",
+			headerAuth: `MediaBrowser Client="SenPlayer", Device="AppleTV", DeviceId="abc"`,
+			wantClient: "SenPlayer",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			c, _ := gin.CreateTestContext(httptest.NewRecorder())
+			url := "/test"
+			if tt.query != "" {
+				url += tt.query
+			}
+			req := httptest.NewRequest(http.MethodGet, url, nil)
+			if tt.ua != "" {
+				req.Header.Set("User-Agent", tt.ua)
+			}
+			if tt.headerAuth != "" {
+				req.Header.Set("X-Emby-Authorization", tt.headerAuth)
+			}
+			c.Request = req
+
+			info := embyClientInfoFromRequest(c)
+			if info.Client != tt.wantClient {
+				t.Fatalf("embyClientInfoFromRequest Client = %q, want %q", info.Client, tt.wantClient)
+			}
+		})
+	}
+}
+
+func TestEmbyAdaptivePrefixPlaybackInfo(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := db.AutoMigrate(model.AllModels()...); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	repos := repository.New(db)
+	svc := &service.Container{
+		Repo: repos,
+		Emby: service.NewEmbyService(nil, nil, repos),
+	}
+	const secret = "test-secret"
+	router := gin.New()
+	registerEmbyRoutes(router, secret, svc)
+
+	token := signedTestToken(t, secret)
+	if err := repos.User.Create(t.Context(), &model.User{
+		Base:         model.Base{ID: "user-1"},
+		Username:     "tester",
+		PasswordHash: "x",
+		Role:         "admin",
+		Tier:         "plus",
+		IsActive:     true,
+	}); err != nil {
+		t.Fatalf("create user: %v", err)
+	}
+	if err := db.Create(&model.Media{
+		Base:      model.Base{ID: "m-adaptive-1"},
+		Title:     "测试媒体",
+		Path:      "D:\\media\\test.mkv",
+		LibraryID: "lib-1",
+	}).Error; err != nil {
+		t.Fatalf("create media: %v", err)
+	}
+
+	// 1. 从 /emby 前缀请求 PlaybackInfo
+	req1 := httptest.NewRequest(http.MethodGet, "/emby/Items/m-adaptive-1/PlaybackInfo", nil)
+	req1.Header.Set("X-Emby-Token", token)
+	w1 := httptest.NewRecorder()
+	router.ServeHTTP(w1, req1)
+
+	if w1.Code != http.StatusOK {
+		t.Fatalf("playbackinfo /emby code = %d: %s", w1.Code, w1.Body.String())
+	}
+	var res1 struct {
+		MediaSources []struct {
+			DirectStreamURL string `json:"DirectStreamUrl"`
+		} `json:"MediaSources"`
+	}
+	if err := json.Unmarshal(w1.Body.Bytes(), &res1); err != nil || len(res1.MediaSources) == 0 {
+		t.Fatalf("unmarshal /emby response: %v, body: %s", err, w1.Body.String())
+	}
+	if !strings.Contains(res1.MediaSources[0].DirectStreamURL, "/Videos/m-adaptive-1/stream") {
+		t.Fatalf("DirectStreamUrl should point to video stream endpoint, got: %s", res1.MediaSources[0].DirectStreamURL)
+	}
+	if !strings.Contains(res1.MediaSources[0].DirectStreamURL, "api_key="+token) {
+		t.Fatalf("DirectStreamUrl should carry api_key token, got: %s", res1.MediaSources[0].DirectStreamURL)
+	}
+
+	// 2. 从重复前缀 /emby/emby 请求 PlaybackInfo (模拟客户端再次追加 BaseUrl 场景)
+	req2 := httptest.NewRequest(http.MethodGet, "/emby/emby/Items/m-adaptive-1/PlaybackInfo", nil)
+	req2.Header.Set("X-Emby-Token", token)
+	w2 := httptest.NewRecorder()
+	router.ServeHTTP(w2, req2)
+
+	if w2.Code != http.StatusOK {
+		t.Fatalf("playbackinfo /emby/emby code = %d: %s", w2.Code, w2.Body.String())
+	}
+	var res2 struct {
+		MediaSources []struct {
+			DirectStreamURL string `json:"DirectStreamUrl"`
+		} `json:"MediaSources"`
+	}
+	if err := json.Unmarshal(w2.Body.Bytes(), &res2); err != nil || len(res2.MediaSources) == 0 {
+		t.Fatalf("unmarshal /emby/emby response: %v, body: %s", err, w2.Body.String())
+	}
+
+	// 3. 从根路径 /Items 请求 PlaybackInfo
+	req3 := httptest.NewRequest(http.MethodGet, "/Items/m-adaptive-1/PlaybackInfo", nil)
+	req3.Header.Set("X-Emby-Token", token)
+	w3 := httptest.NewRecorder()
+	router.ServeHTTP(w3, req3)
+
+	if w3.Code != http.StatusOK {
+		t.Fatalf("playbackinfo root code = %d: %s", w3.Code, w3.Body.String())
+	}
+}
+
+func TestEmbyImageClearNoStore(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := db.AutoMigrate(model.AllModels()...); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	repos := repository.New(db)
+	svc := &service.Container{
+		Repo: repos,
+		Emby: service.NewEmbyService(nil, nil, repos),
+	}
+
+	router := gin.New()
+	registerEmbyRoutes(router, "secret", svc)
+
+	req := httptest.NewRequest(http.MethodGet, "/emby/Items/non-existent-item/Images/Primary", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("placeholder image should return 200, got %d", w.Code)
+	}
+	cacheControl := w.Header().Get("Cache-Control")
+	if strings.Contains(cacheControl, "no-store") {
+		t.Fatalf("image response should not have no-store, got: %s", cacheControl)
+	}
+		if !strings.Contains(cacheControl, "public") {
+			t.Fatalf("image response should have public cache-control, got: %s", cacheControl)
+		}
+	}
+
+func TestEmbyTemporaryPasswordLogin(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := db.AutoMigrate(model.AllModels()...); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	repos := repository.New(db)
+	cfg := &config.Config{}
+	cfg.Secrets.JWTSecret = "test-jwt-secret-very-secure-key-12345"
+	log := zap.NewNop()
+	permissions := service.NewPermissionService(log, repos)
+	tokenSvc := service.NewTokenService(cfg, log, repos)
+	authSvc := service.NewAuthService(cfg, log, repos, tokenSvc, permissions)
+	embySvc := service.NewEmbyService(nil, nil, repos)
+	svc := &service.Container{
+		Repo:  repos,
+		Auth:  authSvc,
+		Token: tokenSvc,
+		Emby:  embySvc,
+	}
+
+	user, _, err := authSvc.Register(t.Context(), "tvuser", "strongpassword123")
+	if err != nil {
+		t.Fatalf("register: %v", err)
+	}
+
+	// 1. 生成 6 位纯数字临时密码 (OTP)
+	code, expireSec, err := authSvc.CreateTemporaryPassword(t.Context(), user.ID)
+	if err != nil {
+		t.Fatalf("create temp password: %v", err)
+	}
+	if len(code) != 6 || expireSec <= 0 {
+		t.Fatalf("invalid temp password format: %s, expire: %d", code, expireSec)
+	}
+
+	router := gin.New()
+	registerEmbyRoutes(router, "test-jwt-secret-very-secure-key-12345", svc)
+
+	// 2. 使用临时密码在 Emby 接口登录
+	body := `{"Username":"tvuser","Pw":"` + code + `"}`
+	req := httptest.NewRequest(http.MethodPost, "/emby/Users/AuthenticateByName", strings.NewReader(body))
+	req.Header.Set("Content-Type", "application/json")
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("login with temp password code = %d: %s", w.Code, w.Body.String())
+	}
+	var loginResp struct {
+		AccessToken string `json:"AccessToken"`
+		User        struct {
+			ID   string `json:"Id"`
+			Name string `json:"Name"`
+		} `json:"User"`
+	}
+	if err := json.Unmarshal(w.Body.Bytes(), &loginResp); err != nil {
+		t.Fatalf("unmarshal login resp: %v", err)
+	}
+	if loginResp.AccessToken == "" || loginResp.User.ID != user.ID {
+		t.Fatalf("unexpected login payload: %#v", loginResp)
+	}
+
+	// 3. 验证阅后即焚：第二次使用同一临时密码应登录失败 (401)
+	req2 := httptest.NewRequest(http.MethodPost, "/emby/Users/AuthenticateByName", strings.NewReader(body))
+	req2.Header.Set("Content-Type", "application/json")
+	w2 := httptest.NewRecorder()
+	router.ServeHTTP(w2, req2)
+
+	if w2.Code != http.StatusUnauthorized {
+		t.Fatalf("second login with consumed temp password should fail, got %d", w2.Code)
+	}
+}
+
+func TestEmbySeriesArtworkInheritanceAndRunTimeTicksFallback(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := db.AutoMigrate(model.AllModels()...); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	repos := repository.New(db)
+	cfg := &config.Config{}
+	cfg.Secrets.JWTSecret = "test-secret-compat"
+	log := zap.NewNop()
+	permissions := service.NewPermissionService(log, repos)
+	tokenSvc := service.NewTokenService(cfg, log, repos)
+	authSvc := service.NewAuthService(cfg, log, repos, tokenSvc, permissions)
+	embySvc := service.NewEmbyService(nil, nil, repos)
+	svc := &service.Container{
+		Repo:  repos,
+		Auth:  authSvc,
+		Token: tokenSvc,
+		Emby:  embySvc,
+	}
+
+	user, _, err := authSvc.Register(t.Context(), "artworkuser", "password123")
+	if err != nil {
+		t.Fatalf("register: %v", err)
+	}
+	token, err := authSvc.IssueEmbyToken(user)
+	if err != nil {
+		t.Fatalf("issue token: %v", err)
+	}
+
+	// 创建 TV Library
+	lib := &model.Library{
+		Name: "电视剧",
+		Path: "/media/电视剧",
+		Type: "tv",
+	}
+	lib.ID = "lib-tv-1"
+	if err := db.Create(lib).Error; err != nil {
+		t.Fatalf("create lib: %v", err)
+	}
+
+	// 创建 Series
+	series := &model.Series{
+		LibraryID:   "lib-tv-1",
+		Title:       "Test Drama",
+		PosterURL:   "https://example.com/series_poster.jpg",
+		BackdropURL: "https://example.com/series_backdrop.jpg",
+	}
+	series.ID = "s-test-1"
+	if err := db.Create(series).Error; err != nil {
+		t.Fatalf("create series: %v", err)
+	}
+
+	// 创建单集 Episode（DurationSec 为 0，但有播放进度 posMs，用于测试 RunTimeTicks 兜底）
+	ep := &model.Media{
+		LibraryID:   "lib-tv-1",
+		SeriesID:    "s-test-1",
+		Title:       "Test Episode 1",
+		Path:        "/media/电视剧/Test Drama/Season 1/S01E01.mp4",
+		SeasonNum:   1,
+		EpisodeNum:  1,
+		DurationSec: 0, // 未知时长
+		PosterURL:   "https://example.com/ep1_still.jpg",
+	}
+	ep.ID = "ep-test-1"
+	if err := db.Create(ep).Error; err != nil {
+		t.Fatalf("create ep: %v", err)
+	}
+
+	router := gin.New()
+	registerEmbyRoutes(router, cfg.Secrets.JWTSecret, svc)
+
+	// 1. 获取 Series 详情
+	reqSeries := httptest.NewRequest(http.MethodGet, "/emby/Items/s-test-1", nil)
+	reqSeries.Header.Set("X-Emby-Token", token)
+	wSeries := httptest.NewRecorder()
+	router.ServeHTTP(wSeries, reqSeries)
+	if wSeries.Code != http.StatusOK {
+		t.Fatalf("get series code = %d: %s", wSeries.Code, wSeries.Body.String())
+	}
+	var seriesPayload map[string]any
+	_ = json.Unmarshal(wSeries.Body.Bytes(), &seriesPayload)
+	if seriesPayload["PrimaryImageTag"] != "s-test-1" {
+		t.Fatalf("series PrimaryImageTag should match series ID, got %v", seriesPayload["PrimaryImageTag"])
+	}
+	if _, ok := seriesPayload["People"]; !ok {
+		t.Fatalf("series payload should include People array")
+	}
+
+	// 2. 获取 Episode 详情，验证继承 SeriesPrimaryImageTag 和 ParentBackdropItemId
+	// 添加一条播放进度记录 (posMs = 60000)
+	hist := &model.PlaybackHistory{
+		UserID:     user.ID,
+		MediaID:    ep.ID,
+		PositionMs: 60000,
+	}
+	_ = db.Create(hist).Error
+
+	reqEp := httptest.NewRequest(http.MethodGet, "/emby/Users/"+user.ID+"/Items/ep-test-1", nil)
+	reqEp.Header.Set("X-Emby-Token", token)
+	wEp := httptest.NewRecorder()
+	router.ServeHTTP(wEp, reqEp)
+	if wEp.Code != http.StatusOK {
+		t.Fatalf("get ep code = %d: %s", wEp.Code, wEp.Body.String())
+	}
+		var epPayload map[string]any
+		_ = json.Unmarshal(wEp.Body.Bytes(), &epPayload)
+		t.Logf("epPayload: %#v", epPayload)
+
+	// 验证图片继承
+	if epPayload["SeriesPrimaryImageTag"] != "s-test-1" {
+		t.Fatalf("ep SeriesPrimaryImageTag should inherit series ID, got %v", epPayload["SeriesPrimaryImageTag"])
+	}
+	if epPayload["ParentBackdropItemId"] != "s-test-1" {
+		t.Fatalf("ep ParentBackdropItemId should inherit series ID, got %v", epPayload["ParentBackdropItemId"])
+	}
+	if _, ok := epPayload["People"]; !ok {
+		t.Fatalf("ep payload should include People array")
+	}
+
+	// 验证 RunTimeTicks 兜底
+	runTimeTicks, _ := epPayload["RunTimeTicks"].(float64)
+	if runTimeTicks <= 0 {
+		t.Fatalf("ep RunTimeTicks should be safely fallback to positive value, got %v", runTimeTicks)
+	}
+	userData, _ := epPayload["UserData"].(map[string]any)
+	playedPct, _ := userData["PlayedPercentage"].(float64)
+	if playedPct <= 0 {
+		t.Fatalf("ep PlayedPercentage should be > 0, got %v", playedPct)
+	}
+}
+
+func TestMeTemporaryPasswordEndpoint(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	if err := db.AutoMigrate(model.AllModels()...); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	repos := repository.New(db)
+	cfg := &config.Config{}
+	cfg.Secrets.JWTSecret = "test-secret-temp"
+	log := zap.NewNop()
+	permissions := service.NewPermissionService(log, repos)
+	tokenSvc := service.NewTokenService(cfg, log, repos)
+	authSvc := service.NewAuthService(cfg, log, repos, tokenSvc, permissions)
+	svc := &service.Container{
+		Repo:  repos,
+		Auth:  authSvc,
+		Token: tokenSvc,
+	}
+
+	user, tokens, err := authSvc.Register(t.Context(), "optuser", "password123")
+	if err != nil {
+		t.Fatalf("register: %v", err)
+	}
+
+	router := gin.New()
+	api := router.Group("/api")
+	authed := api.Group("")
+	authed.Use(func(c *gin.Context) {
+		c.Set(middleware.CtxUserID, user.ID)
+		c.Next()
+	})
+	registerAuthedUserAndLicenseRoutes(authed, svc)
+
+	req := httptest.NewRequest(http.MethodPost, "/api/me/temporary-password", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("generate temp password code = %d: %s", w.Code, w.Body.String())
+	}
+	var resp struct {
+		Code      string `json:"code"`
+		ExpiresIn int    `json:"expires_in"`
+	}
+	if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
+		t.Fatalf("unmarshal resp: %v", err)
+	}
+	if len(resp.Code) != 6 || resp.ExpiresIn <= 0 {
+		t.Fatalf("invalid temp password resp: %#v", resp)
+	}
+
+	// 验证使用生成的临时密码能登录
+	loginResp, err := authSvc.LoginWithTemporaryPassword(t.Context(), "optuser", resp.Code)
+	if err != nil || loginResp == nil || loginResp.User.ID != user.ID {
+		t.Fatalf("login with temp pass failed: %v", err)
+	}
+	_ = tokens
+}

internal/handler/emby_images.go

@@ -51,13 +51,14 @@ func embyItemImageHandler(svc *service.Container) gin.HandlerFunc {
 }
 
 func clearEmbyImageNoStoreHeaders(c *gin.Context) {
+	c.Writer.Header().Del("Cache-Control")
 	c.Writer.Header().Del("Pragma")
 	c.Writer.Header().Del("Expires")
 }
 
 func embyServePlaceholderImage(c *gin.Context) {
 	c.Header("Content-Type", "image/png")
-	c.Header("Cache-Control", "public, max-age=3600")
+	c.Header("Cache-Control", "public, max-age=86400")
 	c.Header("Content-Length", strconv.Itoa(len(embyPlaceholderPNG)))
 	if c.Request.Method == http.MethodHead {
 		c.Status(http.StatusOK)

internal/handler/emby_path_normalize.go

@@ -0,0 +1,190 @@
+package handler
+
+import (
+	"regexp"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+var (
+	multipleSlashesRE = regexp.MustCompile(`/{2,}`)
+)
+
+// embyStaticSegments 包含 Emby API 中已知的保留静态路由分段（全部小写），
+// 用于在遇到客户端混合大小写（如 /System/info, /items/:id/playbackInfo）时，
+// 将静态段规范化为对应的小写形式，而保留动态参数段（:id, :userId 等）的原大小写。
+var embyStaticSegments = map[string]struct{}{
+	"system":                 {},
+	"info":                   {},
+	"public":                 {},
+	"endpoint":               {},
+	"configuration":          {},
+	"ping":                   {},
+	"users":                  {},
+	"useritems":              {},
+	"me":                     {},
+	"authenticatebyname":     {},
+	"items":                  {},
+	"counts":                 {},
+	"latest":                 {},
+	"resume":                 {},
+	"playbackinfo":           {},
+	"shows":                  {},
+	"seasons":                {},
+	"episodes":               {},
+	"nextup":                 {},
+	"upcoming":               {},
+	"similar":                {},
+	"thumbnailset":           {},
+	"thememedia":             {},
+	"specialfeatures":        {},
+	"intros":                 {},
+	"videos":                 {},
+	"stream":                 {},
+	"subtitles":              {},
+	"master.m3u8":            {},
+	"main.m3u8":              {},
+	"sessions":               {},
+	"playing":                {},
+	"progress":               {},
+	"stopped":                {},
+	"capabilities":           {},
+	"full":                   {},
+	"logout":                 {},
+	"views":                  {},
+	"library":                {},
+	"mediafolders":           {},
+	"virtualfolders":         {},
+	"selectablemediafolders": {},
+	"branding":               {},
+	"css":                    {},
+	"localization":           {},
+	"options":                {},
+	"cultures":               {},
+	"customcssjs":            {},
+	"scripts":                {},
+	"displaypreferences":     {},
+	"quickconnect":           {},
+	"enabled":                {},
+	"startup":                {},
+	"complete":               {},
+	"favoriteitems":          {},
+	"playeditems":            {},
+	"images":                 {},
+	"primary":                {},
+	"backdrop":               {},
+	"banner":                 {},
+	"thumb":                  {},
+	"logo":                   {},
+	"serverdomains":          {},
+	"ext":                    {},
+	"danmu":                  {},
+	"raw":                    {},
+	"mediasegments":          {},
+	"artists":                {},
+	"persons":                {},
+	"genres":                 {},
+	"embywebsocket":          {},
+}
+
+// NormalizeEmbyPath 规范化 Emby 请求路径：
+// 1. 折叠重复斜杠（如 //emby/ -> /emby/）；
+// 2. 折叠重复前缀（如 /emby/emby/System/Info -> /emby/System/Info）；
+// 3. 将静态关键字段归一化为小写，同时保留动态 ID/参数的原有大小写。
+func NormalizeEmbyPath(p string) (string, bool) {
+	if p == "" {
+		return "", false
+	}
+	original := p
+
+	// 1. 折叠多余斜杠
+	p = multipleSlashesRE.ReplaceAllString(p, "/")
+
+	// 2. 折叠重复的 /emby 前缀
+	for {
+		lower := strings.ToLower(p)
+		if strings.HasPrefix(lower, "/emby/emby/") {
+			p = "/emby/" + p[len("/emby/emby/"):]
+			continue
+		}
+		if lower == "/emby/emby" {
+			p = "/emby"
+			break
+		}
+		break
+	}
+
+	// 3. 分析是否具有 Emby 路由特征
+	hasEmbyPrefix := false
+	workPath := p
+	if strings.HasPrefix(strings.ToLower(workPath), "/emby/") {
+		hasEmbyPrefix = true
+		workPath = workPath[len("/emby"):]
+	} else if strings.EqualFold(workPath, "/emby") {
+		return "/emby", original != "/emby"
+	}
+
+	segments := strings.Split(strings.Trim(workPath, "/"), "/")
+	if len(segments) == 0 || segments[0] == "" {
+		return p, p != original
+	}
+
+	// 检查第一段是否为 Emby 根路由关键字
+	firstLower := strings.ToLower(segments[0])
+	if _, ok := embyStaticSegments[firstLower]; !ok && firstLower != "api" {
+		// 不是 Emby 相关路径，保持原样
+		return original, false
+	}
+
+	// 4. 将已知静态段转为小写，动态段保留原样
+	for i, seg := range segments {
+		segLower := strings.ToLower(seg)
+		if _, isStatic := embyStaticSegments[segLower]; isStatic {
+			if seg != segLower {
+				segments[i] = segLower
+			}
+		}
+	}
+
+	var builder strings.Builder
+	if hasEmbyPrefix {
+		builder.WriteString("/emby")
+	}
+	for _, seg := range segments {
+		builder.WriteString("/")
+		builder.WriteString(seg)
+	}
+	if strings.HasSuffix(original, "/") && !strings.HasSuffix(builder.String(), "/") {
+		builder.WriteString("/")
+	}
+
+	normalized := builder.String()
+	return normalized, normalized != original
+}
+
+const embyNormalizedCtxKey = "emby_normalized_path"
+
+// TryHandleEmbyNormalizedRoute 尝试在 404 NoRoute 阶段对 Emby 路径做前缀与大小写纠偏并重定向分发。
+// 若成功分发并处理，返回 true；否则返回 false。
+func TryHandleEmbyNormalizedRoute(c *gin.Context, r *gin.Engine) bool {
+	if c == nil || r == nil {
+		return false
+	}
+	if c.GetBool(embyNormalizedCtxKey) {
+		return false
+	}
+	normalized, changed := NormalizeEmbyPath(c.Request.URL.Path)
+	if !changed {
+		return false
+	}
+
+	c.Set(embyNormalizedCtxKey, true)
+	c.Request.URL.Path = normalized
+
+	// 重置 context 状态并由 engine 重新查找路由树
+	c.Params = nil
+	c.Writer.Header().Del("Content-Type")
+	r.HandleContext(c)
+	return true
+}

internal/handler/emby_routes.go

@@ -23,6 +23,14 @@ func registerEmbyRoutes(r *gin.Engine, jwtSecret string, svc *service.Container)
 		auth := grp.Group("", embyAuthRequiredWithSessionFallback(jwtSecret), activeEmbyUserRequired(svc), embyRealtimeSessionActivity(svc))
 		registerEmbyAuthenticatedRoutes(auth, prefix, svc)
 	}
+
+	// 为没有设置 NoRoute 的 Engine 提供 Emby 路径前缀与大小写纠偏（如单测或独立挂载环境）
+	r.NoRoute(func(c *gin.Context) {
+		if TryHandleEmbyNormalizedRoute(c, r) {
+			return
+		}
+		c.Status(404)
+	})
 }
 
 type embyRouteHandlerFactory func(*service.Container) gin.HandlerFunc

internal/handler/emby_users.go

@@ -34,11 +34,18 @@ func embyAuthByNameHandler(svc *service.Container) gin.HandlerFunc {
 			embyError(c, http.StatusBadRequest, "missing username or password")
 			return
 		}
-		resp, err := svc.Auth.Login(c.Request.Context(), req.Username, password)
-		if err != nil {
-			embyError(c, http.StatusUnauthorized, err.Error())
-			return
-		}
+			resp, err := svc.Auth.Login(c.Request.Context(), req.Username, password)
+			if err != nil {
+				// 支持电视端/客户端一次性 6 位临时密码登录 (OTP)
+				if tempResp, tempErr := svc.Auth.LoginWithTemporaryPassword(c.Request.Context(), req.Username, password); tempErr == nil {
+					resp = tempResp
+					err = nil
+				}
+			}
+			if err != nil {
+				embyError(c, http.StatusUnauthorized, err.Error())
+				return
+			}
 		// 记录登录设备会话并执行防共享检测（登录客户端数 / 设备指纹）。
 		clientInfo := embyClientInfoFromRequest(c)
 		if svc.Sessions != nil {

internal/handler/media.go

@@ -488,7 +488,7 @@ func getMediaHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusOK, m)
 			return
 		}
-		m, err := svc.Media.GetMedia(ctx, id)
+		m, err := svc.Media.GetMediaItem(ctx, id)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
@@ -497,7 +497,7 @@ func getMediaHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 			return
 		}
-		if !mediaVisibleForRequest(c, svc, m) {
+		if !mediaVisibleForRequest(c, svc, &m.Media) {
 			c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
 			return
 		}

internal/handler/routes_authenticated_core.go

@@ -14,6 +14,8 @@ func registerAuthedUserAndLicenseRoutes(authed *gin.RouterGroup, svc *service.Co
 	authed.PUT("/me/pinned-libraries", setPinnedLibrariesHandler(svc))
 	authed.POST("/me/password", changePasswordHandler(svc))
 	authed.POST("/me/logout", logoutHandler(svc))
+	authed.GET("/me/temporary-password", temporaryPasswordHandler(svc))
+	authed.POST("/me/temporary-password", temporaryPasswordHandler(svc))
 
 	authed.GET("/auth/permissions", getMyPermissionsHandler(svc))
 }

internal/handler/strm.go

@@ -232,6 +232,7 @@ type strmSyncPathReq struct {
 	DownloadMeta      *bool  `json:"download_meta"`
 	UploadMeta        *bool  `json:"upload_meta"`
 	DeleteDir         *bool  `json:"delete_dir"`
+	KeepExt           *bool  `json:"keep_ext"`
 	Cron              string `json:"cron"`
 	EnableCron        *bool  `json:"enable_cron"`
 	SyncMode          string `json:"sync_mode"`
@@ -703,6 +704,7 @@ func strmSyncPathFromReq(req strmSyncPathReq) *model.StrmSyncPath {
 		DownloadMeta:      boolValue(req.DownloadMeta, true),
 		UploadMeta:        boolValue(req.UploadMeta, false),
 		DeleteDir:         boolValue(req.DeleteDir, false),
+		KeepExt:           boolValue(req.KeepExt, false),
 		Cron:              strings.TrimSpace(req.Cron),
 		EnableCron:        boolValue(req.EnableCron, false),
 		SyncMode:          strings.TrimSpace(req.SyncMode),

internal/model/strm.go

@@ -51,6 +51,9 @@ type StrmSyncPath struct {
 	DownloadMeta    bool       `gorm:"default:true" json:"download_meta"`              // 同步时下载元数据文件（nfo/图片/字幕）
 	UploadMeta      bool       `json:"upload_meta"`                                    // 同步时把本地元数据上传到远端
 	DeleteDir       bool       `json:"delete_dir"`                                     // 清理多余文件时删除空目录
+	// KeepExt=true 时为每个视频生成 name.mkv.strm / name.mp4.strm（保留全部版本）；
+	// false（默认）时同名不同扩展只择优生成一条 name.strm，避免互相覆盖与来回抖动。
+	KeepExt bool `json:"keep_ext"`
 	Cron            string     `gorm:"size:128" json:"cron"`                           // 5 段 cron 表达式（可选）
 	EnableCron      bool       `json:"enable_cron"`                                    // 是否按 Cron 定时同步
 	SyncMode        string     `gorm:"size:32;default:'incremental'" json:"sync_mode"` // 默认同步模式：incremental / full
@@ -128,7 +131,7 @@ type StrmUploadTask struct {
 	FileName   string     `gorm:"size:512" json:"file_name"`
 	LocalPath  string     `gorm:"size:1024" json:"local_path"`  // 本地源文件
 	RemotePath string     `gorm:"size:1024" json:"remote_path"` // 远端目标路径
-	RemoteRef  string     `gorm:"size:1024" json:"remote_ref"`  // 远端同名旧文件引用（115 文件 ID；上传覆盖前先删除旧文件，WebDAV/OpenList 直接覆盖无需删除）
+	RemoteRef  string     `gorm:"size:1024" json:"remote_ref"`  // 上传前：远端同名旧文件 ID（逗号分隔，覆盖前先删）；上传成功后：新文件 ID
 	Size       int64      `json:"size"`
 	Status     string     `gorm:"size:16;index" json:"status"`
 	Error      string     `gorm:"size:1024" json:"error"`

internal/repository/strm_repository.go

@@ -110,6 +110,7 @@ func (r *StrmSyncPathRepository) Update(ctx context.Context, p *model.StrmSyncPa
 			"download_meta":       p.DownloadMeta,
 			"upload_meta":         p.UploadMeta,
 			"delete_dir":          p.DeleteDir,
+			"keep_ext":            p.KeepExt,
 			"cron":                p.Cron,
 			"enable_cron":         p.EnableCron,
 			"sync_mode":           p.SyncMode,
@@ -861,6 +862,34 @@ func (r *StrmUploadTaskRepository) GetActiveLocalPathMap(ctx context.Context, sy
 	return out, nil
 }
 
+// GetRecentDoneUploadSizeMap 返回近期已成功上传的 local_path → size。
+// 用于缩短「上传已 done 但 115 列表尚未反映」窗口内的重复入队：同路径且大小未变则跳过。
+// 同一路径存在多条 done 时取最新一条（finished_at 降序）。
+func (r *StrmUploadTaskRepository) GetRecentDoneUploadSizeMap(ctx context.Context, syncPathID string, since time.Time) (map[string]int64, error) {
+	var rows []model.StrmUploadTask
+	err := r.db.WithContext(ctx).Model(&model.StrmUploadTask{}).
+		Select("local_path", "size", "finished_at").
+		Where("sync_path_id = ? AND status = ? AND finished_at IS NOT NULL AND finished_at >= ?",
+			syncPathID, model.StrmTaskDone, since).
+		Order("finished_at DESC").
+		Find(&rows).Error
+	if err != nil {
+		return nil, err
+	}
+	out := make(map[string]int64, len(rows))
+	for _, row := range rows {
+		if row.LocalPath == "" {
+			continue
+		}
+		// 已按 finished_at DESC；先写入的是最新，后续同路径跳过
+		if _, exists := out[row.LocalPath]; exists {
+			continue
+		}
+		out[row.LocalPath] = row.Size
+	}
+	return out, nil
+}
+
 func (r *StrmUploadTaskRepository) DeleteFinishedOlderThan(ctx context.Context, before time.Time) error {
 	return withSQLiteBusyRetry(ctx, func() error {
 		return r.db.WithContext(ctx).Unscoped().Where("status IN ? AND finished_at < ?",

internal/service/auth.go

@@ -3,10 +3,13 @@ package service
 
 import (
 	"context"
+	"crypto/rand"
 	"errors"
 	"fmt"
+	"math/big"
 	"os"
 	"strings"
+	"sync"
 	"time"
 
 	"go.uber.org/zap"
@@ -18,6 +21,12 @@ import (
 	"github.com/truewhile/MeBox/internal/repository"
 )
 
+type temporaryPasswordEntry struct {
+	userID    string
+	username  string
+	expiresAt time.Time
+}
+
 // AuthService handles registration, login, and JWT issuance.
 type AuthService struct {
 	cfg           *config.Config
@@ -25,11 +34,21 @@ type AuthService struct {
 	repo          *repository.Container
 	tokenSvc      *TokenService
 	permissionSvc *PermissionService
+
+	tempPassMu    sync.RWMutex
+	tempPasswords map[string]temporaryPasswordEntry
 }
 
 // NewAuthService is the constructor.
 func NewAuthService(cfg *config.Config, log *zap.Logger, repo *repository.Container, tokenSvc *TokenService, permissionSvc *PermissionService) *AuthService {
-	return &AuthService{cfg: cfg, log: log, repo: repo, tokenSvc: tokenSvc, permissionSvc: permissionSvc}
+	return &AuthService{
+		cfg:           cfg,
+		log:           log,
+		repo:          repo,
+		tokenSvc:      tokenSvc,
+		permissionSvc: permissionSvc,
+		tempPasswords: make(map[string]temporaryPasswordEntry),
+	}
 }
 
 // Common service-level errors.
@@ -254,3 +273,98 @@ func hashPassword(p string) (string, error) {
 	}
 	return string(h), nil
 }
+
+const temporaryPasswordTTL = 5 * time.Minute
+
+// CreateTemporaryPassword 为指定用户生成一个 6 位数字的临时登录密码（有效期 5 分钟），
+// 供 Emby 电视端/客户端进行无键盘或快速输入登录。
+func (s *AuthService) CreateTemporaryPassword(ctx context.Context, userID string) (string, int, error) {
+	if s == nil || s.repo == nil {
+		return "", 0, errors.New("auth service unavailable")
+	}
+	user, err := s.repo.User.FindByID(ctx, userID)
+	if err != nil || user == nil {
+		return "", 0, ErrInvalidCredentials
+	}
+	if !user.IsActive {
+		return "", 0, ErrUserInactive
+	}
+	if user.ExpiredAt != nil && time.Now().After(*user.ExpiredAt) {
+		return "", 0, ErrUserExpired
+	}
+
+	n, err := rand.Int(rand.Reader, big.NewInt(900000))
+	if err != nil {
+		return "", 0, err
+	}
+	code := fmt.Sprintf("%06d", n.Int64()+100000)
+
+	s.tempPassMu.Lock()
+	defer s.tempPassMu.Unlock()
+	now := time.Now()
+	for k, v := range s.tempPasswords {
+		if now.After(v.expiresAt) {
+			delete(s.tempPasswords, k)
+		}
+	}
+	s.tempPasswords[code] = temporaryPasswordEntry{
+		userID:    user.ID,
+		username:  user.Username,
+		expiresAt: now.Add(temporaryPasswordTTL),
+	}
+
+	return code, int(temporaryPasswordTTL.Seconds()), nil
+}
+
+// VerifyAndConsumeTemporaryPassword 校验并消费临时登录密码（阅后即焚）。
+func (s *AuthService) VerifyAndConsumeTemporaryPassword(ctx context.Context, username, code string) (*model.User, bool) {
+	if s == nil || s.repo == nil {
+		return nil, false
+	}
+	code = strings.TrimSpace(code)
+	if len(code) != 6 {
+		return nil, false
+	}
+	s.tempPassMu.Lock()
+	entry, ok := s.tempPasswords[code]
+	if ok {
+		delete(s.tempPasswords, code)
+	}
+	s.tempPassMu.Unlock()
+
+	if !ok || time.Now().After(entry.expiresAt) {
+		return nil, false
+	}
+
+	if strings.TrimSpace(username) != "" && !strings.EqualFold(strings.TrimSpace(username), entry.username) {
+		return nil, false
+	}
+
+	user, err := s.repo.User.FindByID(ctx, entry.userID)
+	if err != nil || user == nil || !user.IsActive {
+		return nil, false
+	}
+	if user.ExpiredAt != nil && time.Now().After(*user.ExpiredAt) {
+		return nil, false
+	}
+	return user, true
+}
+
+// LoginWithTemporaryPassword 尝试使用 6 位数字临时登录密码 (OTP) 进行登录。
+func (s *AuthService) LoginWithTemporaryPassword(ctx context.Context, username, code string) (*LoginResponse, error) {
+	user, ok := s.VerifyAndConsumeTemporaryPassword(ctx, username, code)
+	if !ok || user == nil {
+		return nil, ErrInvalidCredentials
+	}
+	if s.tokenSvc == nil {
+		return nil, errors.New("token service unavailable")
+	}
+	tokens, err := s.tokenSvc.IssuePair(ctx, user.ID, user.Role, user.Tier)
+	if err != nil {
+		return nil, err
+	}
+	return &LoginResponse{
+		User:   user,
+		Tokens: tokens,
+	}, nil
+}

internal/service/cloud115/open.go

@@ -119,6 +119,60 @@ func (c *OpenClient) GetFsListFlat(ctx context.Context, cid string, offset, limi
 	return files, resp.Count, nil
 }
 
+// FindNamedContentInParent 在父目录下查找与本地内容一致的同名文件。
+// 匹配条件：文件名完全一致、大小一致，且 SHA1 为空或与 expectedSHA1 大小写不敏感相等。
+// 同时返回该目录下全部同名文件（含未匹配的脏副本），便于上传前清理。
+// 目录过大时分页扫描，最多拉取 maxListPages 页（每页 pageSize 条）。
+func (c *OpenClient) FindNamedContentInParent(ctx context.Context, parentCID, fileName, expectedSHA1 string, expectedSize int64) (matched *RemoteFile, sameName []RemoteFile, err error) {
+	fileName = strings.TrimSpace(fileName)
+	if fileName == "" {
+		return nil, nil, nil
+	}
+	const pageSize = 200
+	const maxListPages = 20 // 最多扫描 4000 项，元数据父目录通常远小于此
+	expectedSHA1 = strings.TrimSpace(expectedSHA1)
+	offset := 0
+	for page := 0; page < maxListPages; page++ {
+		files, _, listErr := c.GetFsList(ctx, parentCID, offset, pageSize)
+		if listErr != nil {
+			return nil, sameName, listErr
+		}
+		if len(files) == 0 {
+			break
+		}
+		for i := range files {
+			f := files[i]
+			if f.Category == TypeDir {
+				continue
+			}
+			// fta=0/2 表示未上传完成，不可作为已存在副本
+			if f.Fta == "0" || f.Fta == "2" {
+				continue
+			}
+			if f.FileName != fileName {
+				continue
+			}
+			sameName = append(sameName, f)
+			if matched != nil {
+				continue
+			}
+			if f.FileSize != expectedSize {
+				continue
+			}
+			remoteSha := strings.TrimSpace(f.Sha1)
+			if remoteSha == "" || remoteSha == "-" || strings.EqualFold(remoteSha, expectedSHA1) {
+				cp := f
+				matched = &cp
+			}
+		}
+		if len(files) < pageSize {
+			break
+		}
+		offset += len(files)
+	}
+	return matched, sameName, nil
+}
+
 // GetFsDetailByCid 查询文件（夹）详情。
 func (c *OpenClient) GetFsDetailByCid(ctx context.Context, fileId string) (*RemoteFileDetail, error) {
 	params := map[string]string{"file_id": fileId}

internal/service/cloud115/open_find_test.go

@@ -0,0 +1,54 @@
+package cloud115
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"testing"
+)
+
+func TestFindNamedContentInParentMatchAndSameName(t *testing.T) {
+	sha := "AABBCCDDEEFF00112233445566778899AABBCCDD"
+	mockAPI(t, func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path != "/open/ufile/files" {
+			t.Errorf("unexpected path %s", r.URL.Path)
+		}
+		w.Write([]byte(fmt.Sprintf(`{"state":true,"data":[
+			{"fid":"dir-1","fc":"0","fn":"sub","fs":0},
+			{"fid":"keep","fc":"1","fn":"a.nfo","fs":10,"sha1":%q,"fta":"1"},
+			{"fid":"dirty","fc":"1","fn":"a.nfo","fs":10,"sha1":"OTHER","fta":"1"},
+			{"fid":"other","fc":"1","fn":"b.nfo","fs":10,"sha1":%q,"fta":"1"},
+			{"fid":"incomplete","fc":"1","fn":"a.nfo","fs":10,"sha1":%q,"fta":"0"}
+		]}`, sha, sha, sha)))
+	})
+	c := NewOpenClient("100195125", "at1", "rt1")
+	matched, sameName, err := c.FindNamedContentInParent(context.Background(), "parent", "a.nfo", sha, 10)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if matched == nil || matched.FileId != "keep" {
+		t.Fatalf("matched = %+v, want keep", matched)
+	}
+	if len(sameName) != 2 { // keep + dirty；incomplete 被 fta 过滤
+		t.Fatalf("sameName len=%d, want 2 (incomplete excluded)", len(sameName))
+	}
+}
+
+func TestFindNamedContentInParentNoMatch(t *testing.T) {
+	mockAPI(t, func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(`{"state":true,"data":[
+			{"fid":"x","fc":"1","fn":"a.nfo","fs":9,"sha1":"OTHER","fta":"1"}
+		]}`))
+	})
+	c := NewOpenClient("100195125", "at1", "rt1")
+	matched, sameName, err := c.FindNamedContentInParent(context.Background(), "parent", "a.nfo", "WANT", 10)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if matched != nil {
+		t.Fatalf("expected no match, got %+v", matched)
+	}
+	if len(sameName) != 1 {
+		t.Fatalf("sameName should still list name hits, got %d", len(sameName))
+	}
+}

internal/service/danmaku_service.go

@@ -369,7 +369,10 @@ func (s *DanmakuService) searchTerms(ctx context.Context, mediaID string) (danma
 	} else if name := strings.TrimSpace(m.Title); name != "" {
 		term.name = name
 	} else {
-		term.name = strings.TrimSuffix(filepath.Base(m.Path), filepath.Ext(m.Path))
+		term.name = mediaSidecarBase(m.Path)
+		if term.name == "" {
+			term.name = strings.TrimSuffix(filepath.Base(m.Path), filepath.Ext(m.Path))
+		}
 	}
 	if m.EpisodeNum > 0 {
 		term.episode = strconv.Itoa(m.EpisodeNum)
@@ -527,23 +530,7 @@ func (s *DanmakuService) hashCachePut(stamp, hash string) {
 // ("xxx.mkv.strm") — so a second strip removes a real video extension only
 // (filepath.Ext would misread names like "xxx.第01话" as having an extension).
 func danmakuMatchFileName(path string) string {
-	if path == "" {
-		return ""
-	}
-	clean := strings.ReplaceAll(path, "\\", "/")
-	if idx := strings.LastIndex(clean, "/"); idx >= 0 {
-		clean = clean[idx+1:]
-	}
-	base := filepath.Base(clean)
-	if ext := filepath.Ext(base); ext != "" {
-		base = strings.TrimSuffix(base, ext)
-	}
-	if second := strings.ToLower(filepath.Ext(base)); second != "" {
-		if _, ok := videoExtensions[second]; ok && second != ".strm" {
-			base = strings.TrimSuffix(base, filepath.Ext(base))
-		}
-	}
-	return strings.TrimSpace(base)
+	return mediaSidecarBase(path)
 }
 
 // mediaHash returns the dandanplay match hash (MD5 of the first 16MB of the

internal/service/emby_items_detail.go

@@ -2,7 +2,11 @@ package service
 
 import (
 	"context"
+	"crypto/sha256"
+	"encoding/hex"
 	"fmt"
+	"os"
+	"path/filepath"
 	"strings"
 	"time"
 
@@ -455,6 +459,13 @@ func (e *EmbyService) itemPayload(ctx context.Context, m *model.Media, fav bool,
 
 	runTimeTicks := int64(m.DurationSec) * 10_000_000
 	durationMs := int64(m.DurationSec) * 1000
+	if durationMs <= 0 && posMs > 0 {
+		durationMs = posMs * 2
+		if durationMs < 30*60*1000 {
+			durationMs = 30 * 60 * 1000
+		}
+		runTimeTicks = durationMs * 10_000
+	}
 	played := posMs > 0 && durationMs > 0 && posMs >= durationMs*9/10
 	pct := 0.0
 	if durationMs > 0 {
@@ -488,6 +499,7 @@ func (e *EmbyService) itemPayload(ctx context.Context, m *model.Media, fav bool,
 		"ImageTags":         imageTags,
 		"BackdropImageTags": backdropTags,
 		"Genres":            splitCSV(m.Genres),
+		"People":            e.resolveMediaPeople(ctx, m),
 		"ProviderIds": map[string]string{
 			"Tmdb":    intToStr(m.TMDbID),
 			"Bangumi": intToStr(m.BangumiID),
@@ -501,8 +513,106 @@ func (e *EmbyService) itemPayload(ctx context.Context, m *model.Media, fav bool,
 		},
 		"MediaSources": e.mediaSourcesForItem(ctx, m, true, false),
 	}
+	if primaryArtwork != "" {
+		item["PrimaryImageTag"] = m.ID
+	}
+	if seriesID != "" {
+		if sEntry, ok, _ := e.payloadSeriesEntry(ctx, seriesID); ok {
+			if sEntry.posterURL != "" {
+				item["SeriesPrimaryImageTag"] = seriesID
+			}
+			if len(backdropTags) == 0 && sEntry.backdropURL != "" {
+				item["ParentBackdropItemId"] = seriesID
+				item["ParentBackdropImageTags"] = []string{seriesID + "-bd"}
+			}
+		}
+	}
 	if premiered, ok := embyPremiereDate(m.ReleaseDate); ok {
 		item["PremiereDate"] = premiered
 	}
 	return item
 }
+
+func (e *EmbyService) resolveMediaPeople(ctx context.Context, m *model.Media) []map[string]any {
+	if m == nil || strings.TrimSpace(m.Path) == "" {
+		return []map[string]any{}
+	}
+	dir := filepath.Dir(m.Path)
+	candidates := make([]string, 0, 6)
+	seenPath := map[string]struct{}{}
+	add := func(path string) {
+		path = strings.TrimSpace(path)
+		if path == "" {
+			return
+		}
+		key := strings.ToLower(filepath.Clean(path))
+		if _, ok := seenPath[key]; ok {
+			return
+		}
+		seenPath[key] = struct{}{}
+		candidates = append(candidates, path)
+	}
+	// 共享词干优先（竞女01.mkv.strm → 竞女01.nfo），并兼容旧的单层剥扩展命名。
+	add(nfoPath(m.Path))
+	for _, base := range mediaSidecarBaseVariants(m.Path) {
+		add(filepath.Join(dir, base+".nfo"))
+	}
+	add(filepath.Join(dir, "movie.nfo"))
+	add(filepath.Join(dir, "tvshow.nfo"))
+
+	people := make([]map[string]any, 0)
+	seen := make(map[string]bool)
+
+	for _, p := range candidates {
+		if fi, err := os.Stat(p); err == nil && !fi.IsDir() {
+			doc, _, err := decodeNFOFile(p)
+			if err == nil && doc != nil {
+				for _, d := range doc.Directors {
+					name := strings.TrimSpace(d)
+					if name == "" {
+						continue
+					}
+					personID := embyPersonID(name, "Director")
+					if seen[personID] {
+						continue
+					}
+					seen[personID] = true
+					people = append(people, map[string]any{
+						"Id":   personID,
+						"Name": name,
+						"Type": "Director",
+						"Role": "Director",
+					})
+				}
+				for _, a := range doc.Actors {
+					name := strings.TrimSpace(a.Name)
+					if name == "" {
+						continue
+					}
+					personID := embyPersonID(name, "Actor")
+					if seen[personID] {
+						continue
+					}
+					seen[personID] = true
+					role := strings.TrimSpace(a.Role)
+					if role == "" {
+						role = "Actor"
+					}
+					people = append(people, map[string]any{
+						"Id":   personID,
+						"Name": name,
+						"Type": "Actor",
+						"Role": role,
+					})
+				}
+				break
+			}
+		}
+	}
+	return people
+}
+
+func embyPersonID(name, roleType string) string {
+	sum := sha256.Sum256([]byte(strings.ToLower(strings.TrimSpace(name)) + ":" + strings.ToLower(strings.TrimSpace(roleType))))
+	return "person-" + hex.EncodeToString(sum[:8])
+}

internal/service/emby_payload_ctx.go

@@ -23,10 +23,17 @@ type embyLibraryTypeEntry struct {
 	found bool // 库不存在时 found=false，调用方可退回计数启发式
 }
 
+type embyPayloadSeriesEntry struct {
+	title       string
+	posterURL   string
+	backdropURL string
+	found       bool
+}
+
 type embyPayloadCache struct {
 	mu       sync.Mutex
 	libTypes map[string]embyLibraryTypeEntry
-	series   map[string]string // series_id -> title（"" 表示不存在/无标题）
+	series   map[string]embyPayloadSeriesEntry
 }
 
 func (c *embyPayloadCache) libraryType(id string) (embyLibraryTypeEntry, bool) {
@@ -45,14 +52,33 @@ func (c *embyPayloadCache) setLibraryType(id string, entry embyLibraryTypeEntry)
 func (c *embyPayloadCache) seriesTitle(id string) (string, bool) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
-	title, ok := c.series[id]
-	return title, ok
+	entry, ok := c.series[id]
+	if !ok {
+		return "", false
+	}
+	return entry.title, true
+}
+
+func (c *embyPayloadCache) seriesEntry(id string) (embyPayloadSeriesEntry, bool) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	entry, ok := c.series[id]
+	return entry, ok
+}
+
+func (c *embyPayloadCache) setSeriesEntry(id string, entry embyPayloadSeriesEntry) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	c.series[id] = entry
 }
 
 func (c *embyPayloadCache) setSeriesTitle(id, title string) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
-	c.series[id] = title
+	entry := c.series[id]
+	entry.title = title
+	entry.found = true
+	c.series[id] = entry
 }
 
 // withPayloadCache attaches a fresh request-scoped cache if none exists yet.
@@ -65,7 +91,7 @@ func (e *EmbyService) withPayloadCache(ctx context.Context) context.Context {
 	}
 	return context.WithValue(ctx, embyPayloadCacheKey{}, &embyPayloadCache{
 		libTypes: map[string]embyLibraryTypeEntry{},
-		series:   map[string]string{},
+		series:   map[string]embyPayloadSeriesEntry{},
 	})
 }
 
@@ -113,17 +139,22 @@ func (e *EmbyService) prefetchPayloadCache(ctx context.Context, rows []model.Med
 			}
 		}
 	}
-	if len(seriesIDs) > 0 {
-		var series []model.Series
-		if err := e.repo.DB.WithContext(ctx).Select("id, title").Where("id IN ?", seriesIDs).Find(&series).Error; err == nil {
-			for _, s := range series {
-				cache.setSeriesTitle(s.ID, s.Title)
+		if len(seriesIDs) > 0 {
+			var series []model.Series
+			if err := e.repo.DB.WithContext(ctx).Select("id, title, poster_url, backdrop_url").Where("id IN ?", seriesIDs).Find(&series).Error; err == nil {
+				for _, s := range series {
+					cache.setSeriesEntry(s.ID, embyPayloadSeriesEntry{
+						title:       s.Title,
+						posterURL:   s.PosterURL,
+						backdropURL: s.BackdropURL,
+						found:       true,
+					})
+				}
 			}
 		}
 	}
-}
 
-// payloadLibraryType resolves a library type through the request cache,
+	// payloadLibraryType resolves a library type through the request cache,
 // falling back to a direct lookup when no cache is attached. found=false
 // means the library row does not exist (soft-deleted or orphaned id).
 func (e *EmbyService) payloadLibraryType(ctx context.Context, libraryID string) (typ string, found bool, err error) {
@@ -152,24 +183,50 @@ func (e *EmbyService) payloadLibraryType(ctx context.Context, libraryID string)
 // payloadSeriesTitle resolves a series title through the request cache,
 // falling back to a direct lookup when no cache is attached.
 func (e *EmbyService) payloadSeriesTitle(ctx context.Context, seriesID string) (string, bool, error) {
-	if cache, ok := ctx.Value(embyPayloadCacheKey{}).(*embyPayloadCache); ok {
-		if title, hit := cache.seriesTitle(seriesID); hit {
-			return title, true, nil
-		}
-		var s model.Series
-		if err := e.repo.DB.WithContext(ctx).Select("id, title").Where("id = ?", seriesID).First(&s).Error; err != nil {
-			cache.setSeriesTitle(seriesID, "")
-			return "", true, nil
-		}
-		cache.setSeriesTitle(s.ID, s.Title)
-		return s.Title, true, nil
-	}
-	series, err := e.repo.Series.FindByID(ctx, seriesID)
-	if err != nil {
+	entry, ok, err := e.payloadSeriesEntry(ctx, seriesID)
+	if err != nil || !ok {
 		return "", false, err
 	}
-	if series == nil {
-		return "", false, nil
-	}
-	return series.Title, true, nil
+	return entry.title, true, nil
 }
+
+	// payloadSeriesEntry resolves a series entry through the request cache,
+	// falling back to a direct lookup when no cache is attached.
+	func (e *EmbyService) payloadSeriesEntry(ctx context.Context, seriesID string) (embyPayloadSeriesEntry, bool, error) {
+		if cache, ok := ctx.Value(embyPayloadCacheKey{}).(*embyPayloadCache); ok {
+			if entry, hit := cache.seriesEntry(seriesID); hit {
+				return entry, entry.found, nil
+			}
+			if e.repo != nil && e.repo.Series != nil {
+				s, err := e.repo.Series.FindByID(ctx, seriesID)
+				if err != nil || s == nil {
+					cache.setSeriesEntry(seriesID, embyPayloadSeriesEntry{})
+					return embyPayloadSeriesEntry{}, false, err
+				}
+				entry := embyPayloadSeriesEntry{
+					title:       s.Title,
+					posterURL:   s.PosterURL,
+					backdropURL: s.BackdropURL,
+					found:       true,
+				}
+				cache.setSeriesEntry(seriesID, entry)
+				return entry, true, nil
+			}
+		}
+		if e.repo != nil && e.repo.Series != nil {
+			series, err := e.repo.Series.FindByID(ctx, seriesID)
+			if err != nil {
+				return embyPayloadSeriesEntry{}, false, err
+			}
+			if series == nil {
+				return embyPayloadSeriesEntry{}, false, nil
+			}
+			return embyPayloadSeriesEntry{
+				title:       series.Title,
+				posterURL:   series.PosterURL,
+				backdropURL: series.BackdropURL,
+				found:       true,
+			}, true, nil
+		}
+		return embyPayloadSeriesEntry{}, false, nil
+	}

internal/service/emby_people_test.go

@@ -0,0 +1,57 @@
+package service
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/truewhile/MeBox/internal/model"
+)
+
+func TestResolveMediaPeopleUsesSharedStemBesideKeepExtStrm(t *testing.T) {
+	svc := newTestEmbyService(t)
+	dir := t.TempDir()
+	mediaPath := filepath.Join(dir, "竞女01.mkv.strm")
+	nfoPath := filepath.Join(dir, "竞女01.nfo")
+	if err := os.WriteFile(mediaPath, []byte("http://example/play"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+	nfo := `<movie>
+<title>竞女01</title>
+<director>导演甲</director>
+<actor><name>演员乙</name><role>主角</role></actor>
+</movie>`
+	if err := os.WriteFile(nfoPath, []byte(nfo), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	people := svc.resolveMediaPeople(t.Context(), &model.Media{Path: mediaPath, Title: "竞女01"})
+	if len(people) != 2 {
+		t.Fatalf("people=%d want 2: %#v", len(people), people)
+	}
+	got := map[string]string{}
+	for _, p := range people {
+		got[p["Name"].(string)] = p["Type"].(string)
+	}
+	if got["导演甲"] != "Director" || got["演员乙"] != "Actor" {
+		t.Fatalf("unexpected people: %#v", people)
+	}
+}
+
+func TestResolveMediaPeopleStillReadsLegacyKeepExtNFO(t *testing.T) {
+	svc := newTestEmbyService(t)
+	dir := t.TempDir()
+	mediaPath := filepath.Join(dir, "竞女01.mkv.strm")
+	legacyNFO := filepath.Join(dir, "竞女01.mkv.nfo")
+	if err := os.WriteFile(mediaPath, []byte("http://example/play"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(legacyNFO, []byte(`<movie><director>旧导演</director></movie>`), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	people := svc.resolveMediaPeople(t.Context(), &model.Media{Path: mediaPath})
+	if len(people) != 1 || people[0]["Name"] != "旧导演" {
+		t.Fatalf("expected legacy keep_ext nfo people, got %#v", people)
+	}
+}

internal/service/emby_playback.go

@@ -321,7 +321,7 @@ func (e *EmbyService) mediaSource(ctx context.Context, m *model.Media, asEmbedde
 func (e *EmbyService) baseMediaSource(ctx context.Context, m *model.Media, container string, isCloud bool, playURL string, directOnly bool) map[string]any {
 	return map[string]any{
 		"Id":                    m.ID,
-		"Name":                  m.Title,
+		"Name":                  MediaVersionLabel(*m),
 		"Path":                  embyMediaSourcePath(m),
 		"Container":             container,
 		"Size":                  m.SizeBytes,

internal/service/emby_series_payload.go

@@ -27,16 +27,20 @@ func (e *EmbyService) seriesPayload(group embySeriesGroup) map[string]any {
 			"CommunityRating":    group.Rating,
 			"RecursiveItemCount": len(group.Episodes),
 			"ChildCount":         len(e.seasonsForSeries(group)),
-			"DateCreated":        group.CreatedAt,
-			"DateLastMediaAdded": lastMediaAdded,
-			"ImageTags":          imageTags,
-			"BackdropImageTags":  backdropTags,
+		"DateCreated":        group.CreatedAt,
+		"DateLastMediaAdded": lastMediaAdded,
+		"ImageTags":          imageTags,
+		"BackdropImageTags":  backdropTags,
+		"People":             []map[string]any{},
 		"ProviderIds": map[string]string{
 			"Tmdb":    intToStr(group.TMDbID),
 			"Bangumi": intToStr(group.BangumiID),
 		},
 		"UserData": emptyUserData(),
 	}
+	if group.PosterURL != "" {
+		item["PrimaryImageTag"] = group.ID
+	}
 	if premiered, ok := embyPremiereDate(group.ReleaseDate); ok {
 		item["PremiereDate"] = premiered
 	}
@@ -53,7 +57,7 @@ func (e *EmbyService) seasonPayload(season embySeasonGroup) map[string]any {
 	if season.Series.BackdropURL != "" {
 		backdropTags = append(backdropTags, season.ID+"-bd")
 	}
-	return map[string]any{
+	item := map[string]any{
 		"Id":                season.ID,
 		"Name":              season.Name,
 		"ServerId":          embyServerID,
@@ -67,6 +71,16 @@ func (e *EmbyService) seasonPayload(season embySeasonGroup) map[string]any {
 		"ChildCount":        len(season.Episodes),
 		"ImageTags":         imageTags,
 		"BackdropImageTags": backdropTags,
+		"People":            []map[string]any{},
 		"UserData":          emptyUserData(),
 	}
+	if season.Series.PosterURL != "" {
+		item["PrimaryImageTag"] = season.ID
+		item["SeriesPrimaryImageTag"] = season.Series.ID
+	}
+	if season.Series.BackdropURL != "" {
+		item["ParentBackdropItemId"] = season.Series.ID
+		item["ParentBackdropImageTags"] = []string{season.Series.ID + "-bd"}
+	}
+	return item
 }

internal/service/emby_system.go

@@ -11,6 +11,10 @@ import (
 
 // SystemInfo returns the full Emby identity payload.
 func (e *EmbyService) SystemInfo() map[string]any {
+	port := 8096
+	if e != nil && e.cfg != nil {
+		port = e.cfg.App.Port
+	}
 	return map[string]any{
 		"Id":                     embyServerID,
 		"ServerId":               embyServerID,
@@ -27,10 +31,10 @@ func (e *EmbyService) SystemInfo() map[string]any {
 		"SupportsLibraryMonitor": true,
 		"SupportsHttps":          false,
 		"SupportsAutoDiscovery":  true,
-		"HttpServerPortNumber":   e.cfg.App.Port,
+		"HttpServerPortNumber":   port,
 		"HttpsPortNumber":        0,
 		"PublishedServerUrl":     "",
-		"WebSocketPortNumber":    e.cfg.App.Port,
+		"WebSocketPortNumber":    port,
 		"CompletedInstallations": []any{},
 		"CanSelfRestart":         false,
 		"CanLaunchWebBrowser":    false,
@@ -40,6 +44,10 @@ func (e *EmbyService) SystemInfo() map[string]any {
 
 // SystemInfoPublic 是不需要认证的精简版（Emby Web 客户端登陆前会拉）。
 func (e *EmbyService) SystemInfoPublic() map[string]any {
+	port := 8096
+	if e != nil && e.cfg != nil {
+		port = e.cfg.App.Port
+	}
 	return map[string]any{
 		"Id":                     embyServerID,
 		"ServerId":               embyServerID,
@@ -50,7 +58,7 @@ func (e *EmbyService) SystemInfoPublic() map[string]any {
 		"OperatingSystem":        "Windows",
 		"LocalAddress":           "",
 		"WanAddress":             "",
-		"HttpServerPortNumber":   e.cfg.App.Port,
+		"HttpServerPortNumber":   port,
 		"HttpsPortNumber":        0,
 		"SupportsHttps":          false,
 		"SupportsAutoDiscovery":  true,

internal/service/episode_parser.go

@@ -41,7 +41,10 @@ var (
 // ParseEpisode tries to extract (season, episode) from an arbitrary filename.
 // Returns (0, 0) when nothing recognisable is found.
 func ParseEpisode(path string) (season, episode int) {
-	name := strings.TrimSuffix(filepath.Base(path), filepath.Ext(path))
+	name := mediaSidecarBase(path)
+	if name == "" {
+		name = strings.TrimSuffix(filepath.Base(path), filepath.Ext(path))
+	}
 
 	if m := patSEnE.FindStringSubmatch(name); len(m) == 3 {
 		season = mustAtoi(m[1])
@@ -96,7 +99,10 @@ type episodeRef struct {
 }
 
 func episodeRefsFromTitle(path string) []episodeRef {
-	name := strings.TrimSuffix(filepath.Base(path), filepath.Ext(path))
+	name := mediaSidecarBase(path)
+	if name == "" {
+		name = strings.TrimSuffix(filepath.Base(path), filepath.Ext(path))
+	}
 	if refs := parseSEpisodeRange(name); len(refs) > 0 {
 		return refs
 	}

internal/service/local_metadata_artwork.go

@@ -54,39 +54,59 @@ func mergeArtworkMetadata(meta *LocalMetadata, mediaPath, showBaseDir string) {
 }
 
 func localPosterCandidates(mediaPath string) []string {
-	base := strings.TrimSuffix(filepath.Base(mediaPath), filepath.Ext(mediaPath))
-	names := []string{
-		base + "-poster",
-		base + ".poster",
-		"poster",
-		"folder",
-		"cover",
-		"movie",
-		"show",
-		base + "-cover",
-		base + ".cover",
-		base,
-		base + "-thumb",
-		base + ".thumb",
-		"thumb",
+	names := make([]string, 0, 24)
+	seen := map[string]struct{}{}
+	add := func(name string) {
+		name = strings.TrimSpace(name)
+		if name == "" {
+			return
+		}
+		key := strings.ToLower(name)
+		if _, ok := seen[key]; ok {
+			return
+		}
+		seen[key] = struct{}{}
+		names = append(names, name)
+	}
+	for _, base := range mediaSidecarBaseVariants(mediaPath) {
+		add(base + "-poster")
+		add(base + ".poster")
+		add(base + "-cover")
+		add(base + ".cover")
+		add(base)
+		add(base + "-thumb")
+		add(base + ".thumb")
+	}
+	for _, name := range []string{"poster", "folder", "cover", "movie", "show", "thumb"} {
+		add(name)
 	}
 	return append(adultArtworkNameCandidates(mediaPath, "poster"), names...)
 }
 
 func localBackdropCandidates(mediaPath string) []string {
-	base := strings.TrimSuffix(filepath.Base(mediaPath), filepath.Ext(mediaPath))
-	names := []string{
-		base + "-fanart",
-		base + ".fanart",
-		base + "-backdrop",
-		base + ".backdrop",
-		base + "-background",
-		"fanart",
-		"backdrop",
-		"background",
-		"landscape",
-		"banner",
-		"clearart",
+	names := make([]string, 0, 24)
+	seen := map[string]struct{}{}
+	add := func(name string) {
+		name = strings.TrimSpace(name)
+		if name == "" {
+			return
+		}
+		key := strings.ToLower(name)
+		if _, ok := seen[key]; ok {
+			return
+		}
+		seen[key] = struct{}{}
+		names = append(names, name)
+	}
+	for _, base := range mediaSidecarBaseVariants(mediaPath) {
+		add(base + "-fanart")
+		add(base + ".fanart")
+		add(base + "-backdrop")
+		add(base + ".backdrop")
+		add(base + "-background")
+	}
+	for _, name := range []string{"fanart", "backdrop", "background", "landscape", "banner", "clearart"} {
+		add(name)
 	}
 	return append(adultArtworkNameCandidates(mediaPath, "backdrop"), names...)
 }

internal/service/local_metadata_read.go

@@ -28,13 +28,12 @@ func ReadLocalMetadata(mediaPath, libraryRoot string, seriesLike bool) (*LocalMe
 
 func findMovieNFO(mediaPath, libraryRoot string) (*nfoDocument, string, error) {
 	mediaDir := filepath.Dir(mediaPath)
-	base := strings.TrimSuffix(filepath.Base(mediaPath), filepath.Ext(mediaPath))
 	adultCode := AdultCodeFromMediaPath(mediaPath)
-	names := []string{
-		base + ".nfo",
-		"movie.nfo",
-		filepath.Base(mediaDir) + ".nfo",
+	names := make([]string, 0, 8)
+	for _, base := range mediaSidecarBaseVariants(mediaPath) {
+		names = append(names, base+".nfo")
 	}
+	names = append(names, "movie.nfo", filepath.Base(mediaDir)+".nfo")
 	if adultCode != "" {
 		names = append([]string{adultCode + ".nfo", strings.ReplaceAll(adultCode, "-", "") + ".nfo"}, names...)
 	}

internal/service/media_listing.go

@@ -2,6 +2,8 @@ package service
 
 import (
 	"context"
+	"sort"
+	"strings"
 	"time"
 
 	"go.uber.org/zap"
@@ -111,3 +113,63 @@ func (s *MediaService) GetMedia(ctx context.Context, id string) (*model.Media, e
 	*media = items[0]
 	return media, nil
 }
+
+// GetMediaItem 返回媒体详情，并附带同片多版本列表（用于详情页/播放器切换）。
+func (s *MediaService) GetMediaItem(ctx context.Context, id string) (*MediaItem, error) {
+	media, err := s.GetMedia(ctx, id)
+	if err != nil || media == nil {
+		return nil, err
+	}
+	versions, err := s.listVersionSiblings(ctx, media)
+	if err != nil {
+		return nil, err
+	}
+	item := &MediaItem{Media: *media}
+	if len(versions) > 1 {
+		item.Versions = versions
+	}
+	return item, nil
+}
+
+// listVersionSiblings 查找与当前条目同属一个版本组的全部媒体（含自身）。
+func (s *MediaService) listVersionSiblings(ctx context.Context, media *model.Media) ([]model.Media, error) {
+	if media == nil || strings.TrimSpace(media.ID) == "" {
+		return nil, nil
+	}
+	key := mediaVersionGroupKey(*media)
+	if key == "" {
+		return []model.Media{*media}, nil
+	}
+	libraryIDs, err := MergedLibraryIDsForLibrary(ctx, s.repo, media.LibraryID)
+	if err != nil {
+		return nil, err
+	}
+	if len(libraryIDs) == 0 {
+		libraryIDs = []string{media.LibraryID}
+	}
+	filter := repository.MediaQueryFilter{IncludeNSFW: true}
+	candidates, err := s.repo.Media.ListByLibrariesFilteredNoCount(ctx, libraryIDs, 0, 5000, filter)
+	if err != nil {
+		return nil, err
+	}
+	s.attachLibraryMetadata(ctx, candidates)
+	matched := make([]model.Media, 0, 4)
+	for _, row := range candidates {
+		if mediaVersionGroupKey(row) == key {
+			matched = append(matched, row)
+		}
+	}
+	if len(matched) == 0 {
+		return []model.Media{*media}, nil
+	}
+	sort.SliceStable(matched, func(i, j int) bool {
+		if matched[i].ID == media.ID {
+			return true
+		}
+		if matched[j].ID == media.ID {
+			return false
+		}
+		return betterMediaVersion(matched[i], matched[j])
+	})
+	return matched, nil
+}

internal/service/media_sidecar_base.go

@@ -0,0 +1,62 @@
+package service
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+// mediaSidecarBase 返回媒体文件用于配对 NFO/海报/字幕等元数据的共享基名。
+// 同片多版本（含 keep_ext 的 name.mkv.strm / name.mp4.strm）应落到同一词干，
+// 从而忽略中间的视频扩展，按「同一影片」匹配边车文件。
+//
+//	movie.mkv            → movie
+//	movie.strm           → movie
+//	movie.mkv.strm       → movie
+//	Show.S01E01.mp4.strm → Show.S01E01
+func mediaSidecarBase(mediaPath string) string {
+	clean := strings.ReplaceAll(strings.TrimSpace(mediaPath), "\\", "/")
+	if clean == "" {
+		return ""
+	}
+	return mediaFileStem(filepath.Base(clean))
+}
+
+// mediaFileStem 去掉最终扩展名；若为 .strm 且前一层是视频扩展，再剥一层。
+func mediaFileStem(name string) string {
+	name = strings.TrimSpace(name)
+	if name == "" || name == "." {
+		return ""
+	}
+	ext := filepath.Ext(name)
+	stem := strings.TrimSuffix(name, ext)
+	if strings.EqualFold(ext, ".strm") {
+		if second := strings.ToLower(filepath.Ext(stem)); second != "" {
+			if _, ok := videoExtensions[second]; ok && second != ".strm" {
+				stem = strings.TrimSuffix(stem, filepath.Ext(stem))
+			}
+		}
+	}
+	return strings.TrimSpace(stem)
+}
+
+// mediaSidecarBaseVariants 返回匹配用的基名候选：共享词干优先，其次保留单层剥扩展
+// （兼容历史上写成 name.mkv.nfo / name.mkv-poster.jpg 的边车）。
+func mediaSidecarBaseVariants(mediaPath string) []string {
+	stem := mediaSidecarBase(mediaPath)
+	single := strings.TrimSuffix(filepath.Base(strings.TrimSpace(mediaPath)), filepath.Ext(mediaPath))
+	single = strings.TrimSpace(single)
+	out := make([]string, 0, 2)
+	seen := map[string]struct{}{}
+	for _, item := range []string{stem, single} {
+		if item == "" || item == "." {
+			continue
+		}
+		key := strings.ToLower(item)
+		if _, ok := seen[key]; ok {
+			continue
+		}
+		seen[key] = struct{}{}
+		out = append(out, item)
+	}
+	return out
+}

internal/service/media_sidecar_base_test.go

@@ -0,0 +1,107 @@
+package service
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/truewhile/MeBox/internal/model"
+	"github.com/truewhile/MeBox/internal/repository"
+)
+
+func TestMediaSidecarBaseIgnoresKeepExt(t *testing.T) {
+	cases := map[string]string{
+		"/media/竞女01.mkv.strm":         "竞女01",
+		"/media/竞女01.mp4.strm":         "竞女01",
+		"/media/竞女01.strm":             "竞女01",
+		"/media/竞女01.mkv":              "竞女01",
+		"/lib/Show.S01E02.mkv.strm":    "Show.S01E02",
+		`C:/lib/Show.S01E02.mkv.strm`:  "Show.S01E02",
+	}
+	for in, want := range cases {
+		if got := mediaSidecarBase(in); got != want {
+			t.Fatalf("mediaSidecarBase(%q)=%q want %q", in, got, want)
+		}
+	}
+}
+
+func TestNFOPathUsesSharedStemForKeepExt(t *testing.T) {
+	got := nfoPath("/strm/竞女01.mkv.strm")
+	want := filepath.Join("/strm", "竞女01.nfo")
+	if got != want {
+		t.Fatalf("nfoPath keep_ext = %q want %q", got, want)
+	}
+	if nfoPath("/strm/竞女01.mp4.strm") != want {
+		t.Fatalf("mkv/mp4 versions should share nfo path")
+	}
+}
+
+func TestFindMovieNFOMatchesSharedStemBesideKeepExtStrm(t *testing.T) {
+	dir := t.TempDir()
+	media := filepath.Join(dir, "竞女01.mkv.strm")
+	nfo := filepath.Join(dir, "竞女01.nfo")
+	writeFileContent(t, media, "http://example/play")
+	writeFileContent(t, nfo, `<movie><title>竞女01</title></movie>`)
+
+	doc, path, err := findMovieNFO(media, dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if path != nfo {
+		t.Fatalf("path=%q want %q", path, nfo)
+	}
+	if doc == nil || strings.TrimSpace(doc.Title) != "竞女01" {
+		t.Fatalf("unexpected nfo doc: %#v", doc)
+	}
+}
+
+func TestLocalPosterCandidatesIncludeSharedStem(t *testing.T) {
+	cands := localPosterCandidates("/strm/竞女01.mkv.strm")
+	found := false
+	for _, name := range cands {
+		if name == "竞女01-poster" || name == "竞女01" {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Fatalf("expected shared stem poster candidates, got %#v", cands)
+	}
+}
+
+func TestSubtitleDiscoveryMatchesSharedStemBesideKeepExt(t *testing.T) {
+	dir := t.TempDir()
+	mediaPath := filepath.Join(dir, "竞女01.mkv.strm")
+	subPath := filepath.Join(dir, "竞女01.zh.srt")
+	writeFileContent(t, mediaPath, "http://example/play")
+	writeFileContent(t, subPath, "1\n00:00:01,000 --> 00:00:02,000\nhi\n")
+
+	db := newServiceTestDB(t, &model.Media{})
+	repos := repository.New(db)
+	media := model.Media{Title: "竞女01", Path: mediaPath}
+	if err := repos.Media.Upsert(t.Context(), &media); err != nil {
+		t.Fatal(err)
+	}
+	svc := &SubtitleService{repo: repos}
+	tracks, err := svc.discoverUncached(t.Context(), media.ID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(tracks) != 1 {
+		t.Fatalf("tracks=%d want 1 (%#v)", len(tracks), tracks)
+	}
+	if tracks[0].Path != subPath {
+		t.Fatalf("track path=%q want %q", tracks[0].Path, subPath)
+	}
+}
+
+func writeFileContent(t *testing.T, path, data string) {
+	t.Helper()
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(path, []byte(data), 0o644); err != nil {
+		t.Fatal(err)
+	}
+}

internal/service/media_versions.go

@@ -2,6 +2,7 @@ package service
 
 import (
 	"fmt"
+	"path/filepath"
 	"sort"
 	"strings"
 
@@ -179,6 +180,7 @@ func mediaVersionGroupKey(m model.Media) string {
 		}
 		return "thetvdb:" + strings.ToLower(strings.TrimSpace(m.TheTVDBID))
 	}
+
 	title := firstNonEmpty(m.OriginalName, m.Title)
 	titleYear := 0
 	if title == "" {
@@ -187,6 +189,10 @@ func mediaVersionGroupKey(m model.Media) string {
 		title, titleYear = mediaVersionTitleKey(title)
 	}
 	if title == "" {
+		// 无标题时退回同目录词干（覆盖 keep_ext 的 name.mkv.strm / name.mp4.strm）
+		if stemKey := mediaVersionStemGroupKey(m, libKey); stemKey != "" {
+			return stemKey
+		}
 		return ""
 	}
 	year := m.Year
@@ -202,6 +208,114 @@ func mediaVersionGroupKey(m model.Media) string {
 	return fmt.Sprintf("movie:%s:%d", title, year)
 }
 
+// mediaVersionStemGroupKey 按「库 + 父目录 + 文件词干」折叠多版本
+// （如 竞女01.mkv.strm 与 竞女01.mp4.strm）。
+func mediaVersionStemGroupKey(m model.Media, libKey string) string {
+	path := strings.ReplaceAll(strings.TrimSpace(m.Path), "\\", "/")
+	if path == "" || strings.HasPrefix(strings.ToLower(path), "cloud://") {
+		return ""
+	}
+	dir := ""
+	base := path
+	if idx := strings.LastIndex(path, "/"); idx >= 0 {
+		dir = path[:idx]
+		base = path[idx+1:]
+	}
+	stem := mediaVersionFileStem(base)
+	if stem == "" {
+		return ""
+	}
+	stem = normalizeMediaVersionText(stem)
+	if stem == "" {
+		return ""
+	}
+	if libKey == "" {
+		libKey = "_"
+	}
+	return fmt.Sprintf("stem:%s:%s:%s", libKey, strings.ToLower(dir), stem)
+}
+
+// mediaVersionFileStem 去掉最终扩展名；若为 .strm 且前一层是视频扩展，再剥一层。
+func mediaVersionFileStem(name string) string {
+	return mediaFileStem(name)
+}
+
+// MediaVersionLabel 生成版本切换展示名（分辨率 / 容器 / 编码 / 体积 / 文件名）。
+func MediaVersionLabel(m model.Media) string {
+	parts := make([]string, 0, 4)
+	if m.Height > 0 {
+		parts = append(parts, fmt.Sprintf("%dp", m.Height))
+	} else if m.Width > 0 {
+		parts = append(parts, fmt.Sprintf("%dw", m.Width))
+	}
+	container := strings.Trim(strings.ToLower(strings.TrimSpace(m.Container)), ". ")
+	if container == "" || container == "strm" {
+		container = mediaVersionContainerFromPath(m.Path, m.STRMURL)
+	}
+	if container != "" && container != "strm" {
+		parts = append(parts, strings.ToUpper(container))
+	}
+	if codec := strings.TrimSpace(m.VideoCodec); codec != "" {
+		parts = append(parts, strings.ToUpper(codec))
+	}
+	if m.SizeBytes > 0 {
+		parts = append(parts, formatMediaSize(m.SizeBytes))
+	}
+	if len(parts) > 0 {
+		return strings.Join(parts, " · ")
+	}
+	base := filepath.Base(strings.ReplaceAll(strings.TrimSpace(m.Path), "\\", "/"))
+	if base == "" || base == "." {
+		return firstNonEmpty(m.Title, m.OriginalName, m.ID)
+	}
+	return base
+}
+
+func mediaVersionContainerFromPath(path, strmURL string) string {
+	base := filepath.Base(strings.ReplaceAll(strings.TrimSpace(path), "\\", "/"))
+	ext := strings.ToLower(filepath.Ext(base))
+	name := strings.TrimSuffix(base, ext)
+	if ext == ".strm" {
+		if second := strings.ToLower(filepath.Ext(name)); second != "" {
+			if _, ok := videoExtensions[second]; ok {
+				return strings.TrimPrefix(second, ".")
+			}
+		}
+		// 从 strm 播放 URL 的 /video.mkv 推断
+		u := strings.ToLower(strmURL)
+		if idx := strings.LastIndex(u, "/video."); idx >= 0 {
+			rest := u[idx+len("/video."):]
+			if end := strings.IndexAny(rest, "?#&/"); end >= 0 {
+				rest = rest[:end]
+			}
+			rest = strings.Trim(rest, ".")
+			if rest != "" {
+				return rest
+			}
+		}
+		return "strm"
+	}
+	if ext != "" {
+		if _, ok := videoExtensions[ext]; ok {
+			return strings.TrimPrefix(ext, ".")
+		}
+	}
+	return strings.TrimPrefix(ext, ".")
+}
+
+func formatMediaSize(bytes int64) string {
+	if bytes < 1024 {
+		return fmt.Sprintf("%d B", bytes)
+	}
+	const unit = 1024
+	div, exp := int64(unit), 0
+	for n := bytes / unit; n >= unit; n /= unit {
+		div *= unit
+		exp++
+	}
+	return fmt.Sprintf("%.1f %cB", float64(bytes)/float64(div), "KMGTPE"[exp])
+}
+
 func mediaVersionTitleKey(value string) (string, int) {
 	cleaned, year := CleanQuery(value)
 	if strings.TrimSpace(cleaned) == "" {
@@ -232,6 +346,10 @@ func normalizeMediaVersionText(value string) string {
 		if _, noise := noiseTokenSet[field]; noise {
 			continue
 		}
+		// 去掉视频容器词干残留（keep_ext / 旧标题「竞女01 mkv」）
+		if _, ok := videoExtensions["."+field]; ok {
+			continue
+		}
 		out = append(out, field)
 	}
 	return strings.Join(out, " ")

internal/service/media_versions_test.go

@@ -1,6 +1,7 @@
 package service
 
 import (
+	"strings"
 	"testing"
 	"time"
 
@@ -264,3 +265,43 @@ func TestGroupMediaVersionsDoesNotMergeAcrossDifferentLibrariesForMovies(t *test
 		t.Fatalf("expected 2 separate groups for movies in different libraries, got %d", len(grouped))
 	}
 }
+
+func TestGroupMediaVersionsMergesKeepExtStrmVariants(t *testing.T) {
+	mkv := model.Media{
+		LibraryID: "movies",
+		Title:     "竞女01",
+		Path:      "/strm/竞女01.mkv.strm",
+		SizeBytes: 500,
+		STRMURL:   "/api/strm/play/cloud115/video.mkv?pickcode=a",
+	}
+	mp4 := model.Media{
+		LibraryID: "movies",
+		Title:     "竞女01",
+		Path:      "/strm/竞女01.mp4.strm",
+		SizeBytes: 100,
+		STRMURL:   "/api/strm/play/cloud115/video.mp4?pickcode=b",
+	}
+	grouped := groupMediaVersions([]model.Media{mkv, mp4})
+	if len(grouped) != 1 {
+		t.Fatalf("grouped len = %d, want 1", len(grouped))
+	}
+	if len(grouped[0].Versions) != 2 {
+		t.Fatalf("versions len = %d, want 2", len(grouped[0].Versions))
+	}
+	if grouped[0].Path != mkv.Path {
+		t.Fatalf("primary should be larger mkv, got %q", grouped[0].Path)
+	}
+}
+
+func TestMediaVersionLabelUsesContainerAndSize(t *testing.T) {
+	label := MediaVersionLabel(model.Media{
+		Title:     "竞女01",
+		Path:      "/strm/竞女01.mkv.strm",
+		Height:    1080,
+		SizeBytes: 1024 * 1024 * 1200,
+		STRMURL:   "/api/strm/play/cloud115/video.mkv?pickcode=a",
+	})
+	if !strings.Contains(label, "1080p") || !strings.Contains(strings.ToUpper(label), "MKV") {
+		t.Fatalf("unexpected label %q", label)
+	}
+}

internal/service/nfo.go

@@ -115,7 +115,10 @@ func (s *NFOService) ExportLibrary(ctx context.Context, libraryID string) (int,
 
 func nfoPath(media string) string {
 	dir := filepath.Dir(media)
-	base := strings.TrimSuffix(filepath.Base(media), filepath.Ext(media))
+	base := mediaSidecarBase(media)
+	if base == "" {
+		base = strings.TrimSuffix(filepath.Base(media), filepath.Ext(media))
+	}
 	return filepath.Join(dir, fmt.Sprintf("%s.nfo", base))
 }
 

internal/service/organizer_directory_versions.go

@@ -278,16 +278,21 @@ func randomSuffix() string {
 // moveStagedArtwork renames artwork sidecars staged alongside `stage` into
 // their final names next to `dst`.
 func moveStagedArtwork(stage, dst string) {
-	stageBase := strings.TrimSuffix(filepath.Base(stage), filepath.Ext(stage))
-	dstBase := strings.TrimSuffix(filepath.Base(dst), filepath.Ext(dst))
+	stageBases := mediaSidecarBaseVariants(stage)
+	dstBase := mediaSidecarBase(dst)
+	if dstBase == "" {
+		dstBase = strings.TrimSuffix(filepath.Base(dst), filepath.Ext(dst))
+	}
 	stageDir := filepath.Dir(stage)
-	for _, suffix := range artworkSidecarSuffixes {
-		for _, ext := range artworkSidecarExtensions {
-			srcPath := filepath.Join(stageDir, stageBase+suffix+ext)
-			if _, err := os.Stat(srcPath); err != nil {
-				continue
+	for _, stageBase := range stageBases {
+		for _, suffix := range artworkSidecarSuffixes {
+			for _, ext := range artworkSidecarExtensions {
+				srcPath := filepath.Join(stageDir, stageBase+suffix+ext)
+				if _, err := os.Stat(srcPath); err != nil {
+					continue
+				}
+				_ = os.Rename(srcPath, filepath.Join(stageDir, dstBase+suffix+ext))
 			}
-			_ = os.Rename(srcPath, filepath.Join(stageDir, dstBase+suffix+ext))
 		}
 	}
 }
@@ -306,12 +311,13 @@ func moveSidecarRename(from, to string) {
 // removeStagedArtwork removes artwork sidecars that were staged alongside
 // `stage`, used when a replace fails and its staged outputs must be cleaned up.
 func removeStagedArtwork(stage string) {
-	stageBase := strings.TrimSuffix(filepath.Base(stage), filepath.Ext(stage))
+	stageBases := mediaSidecarBaseVariants(stage)
 	stageDir := filepath.Dir(stage)
-	for _, suffix := range artworkSidecarSuffixes {
-		for _, ext := range artworkSidecarExtensions {
-			path := filepath.Join(stageDir, stageBase+suffix+ext)
-			_ = os.Remove(path)
+	for _, stageBase := range stageBases {
+		for _, suffix := range artworkSidecarSuffixes {
+			for _, ext := range artworkSidecarExtensions {
+				_ = os.Remove(filepath.Join(stageDir, stageBase+suffix+ext))
+			}
 		}
 	}
 }

internal/service/organizer_sidecar.go

@@ -51,23 +51,25 @@ var artworkSidecarExtensions = []string{".jpg", ".jpeg", ".png", ".webp", ".gif"
 // behind in the old folder; this keeps artwork with the organized file.
 func transferSidecarArtwork(srcMedia, dstMedia string, mode TransferMode) error {
 	srcDir := filepath.Dir(srcMedia)
-	base := strings.TrimSuffix(filepath.Base(srcMedia), filepath.Ext(srcMedia))
-	if base == "" || base == "." {
+	bases := mediaSidecarBaseVariants(srcMedia)
+	if len(bases) == 0 {
 		return nil
 	}
 	// Find every existing sidecar by probing suffix + extension combinations.
-	sources := make([]string, 0, len(artworkSidecarSuffixes)*len(artworkSidecarExtensions))
+	sources := make([]string, 0, len(artworkSidecarSuffixes)*len(artworkSidecarExtensions)*len(bases))
 	seen := map[string]struct{}{}
-	for _, suffix := range artworkSidecarSuffixes {
-		for _, ext := range artworkSidecarExtensions {
-			path := filepath.Join(srcDir, base+suffix+ext)
-			key := strings.ToLower(filepath.Clean(path))
-			if _, ok := seen[key]; ok {
-				continue
-			}
-			seen[key] = struct{}{}
-			if _, err := os.Stat(path); err == nil {
-				sources = append(sources, path)
+	for _, base := range bases {
+		for _, suffix := range artworkSidecarSuffixes {
+			for _, ext := range artworkSidecarExtensions {
+				path := filepath.Join(srcDir, base+suffix+ext)
+				key := strings.ToLower(filepath.Clean(path))
+				if _, ok := seen[key]; ok {
+					continue
+				}
+				seen[key] = struct{}{}
+				if _, err := os.Stat(path); err == nil {
+					sources = append(sources, path)
+				}
 			}
 		}
 	}
@@ -78,15 +80,36 @@ func transferSidecarArtwork(srcMedia, dstMedia string, mode TransferMode) error
 	if err := os.MkdirAll(dstDir, 0o755); err != nil { // #nosec G301 -- sidecar media directories must remain readable by NAS/player users.
 		return err
 	}
-	var firstErr error
+	dstBase := mediaSidecarBase(dstMedia)
+	if dstBase == "" {
+		dstBase = strings.TrimSuffix(filepath.Base(dstMedia), filepath.Ext(dstMedia))
+	}
 	for _, src := range sources {
-		dst := filepath.Join(dstDir, filepath.Base(src))
-		if _, err := os.Stat(dst); err == nil {
-			continue // never clobber an existing artwork at the destination
+		name := filepath.Base(src)
+		// Remap any legacy "Title.mkv-poster.jpg" onto the shared destination stem.
+		suffix := ""
+		lowerName := strings.ToLower(name)
+		for _, base := range bases {
+			prefix := strings.ToLower(base)
+			if strings.HasPrefix(lowerName, prefix) {
+				suffix = name[len(base):]
+				break
+			}
 		}
-		if err := transferFile(src, dst, mode); err != nil && firstErr == nil {
-			firstErr = err
+		dstName := name
+		if suffix != "" && dstBase != "" {
+			dstName = dstBase + suffix
+		}
+		dst := filepath.Join(dstDir, dstName)
+		if strings.EqualFold(filepath.Clean(src), filepath.Clean(dst)) {
+			continue
+		}
+		if _, err := os.Stat(dst); err == nil {
+			continue
+		}
+		if err := transferFile(src, dst, mode); err != nil {
+			return err
 		}
 	}
-	return firstErr
+	return nil
 }

internal/service/scanner_local_ingest.go

@@ -138,7 +138,10 @@ type localScanMediaInput struct {
 func (s *ScannerService) buildLocalScanMedia(in localScanMediaInput) *model.Media {
 	title, year := CleanQueryWithRecognition(context.Background(), s.repo, in.path)
 	if title == "" {
-		title = strings.TrimSuffix(filepath.Base(in.path), in.ext)
+		title = mediaSidecarBase(in.path)
+		if title == "" {
+			title = strings.TrimSuffix(filepath.Base(in.path), in.ext)
+		}
 	}
 	title, year = preferISOParentScrapeIdentity(in.path, in.lib.Path, title, year)
 

internal/service/scraper_query_clean.go

@@ -75,6 +75,12 @@ func CleanQuery(raw string) (title string, year int) {
 		base = strings.TrimSpace(raw)
 	}
 	name := strings.TrimSuffix(base, filepath.Ext(base))
+	// .strm 可能保留视频扩展名（name.mkv.strm），再剥一层真实视频扩展，
+	// 避免「竞女01.mkv」与「竞女01.mp4」被当成不同标题。
+	name = mediaFileStem(base)
+	if name == "" {
+		name = strings.TrimSuffix(base, filepath.Ext(base))
+	}
 	lower := strings.ToLower(name)
 
 	if m := yearPattern.FindStringSubmatch(lower); len(m) >= 2 {

internal/service/scraper_write_metadata_files.go

@@ -38,9 +38,9 @@ func (s *ScraperService) writeMediaArtworkFilesAfterScrape(ctx context.Context,
 	if dir == "" || dir == "." {
 		return
 	}
-	// Scope sidecar names by the media file's base name (e.g. A.mp4 -> A-poster.jpg)
-	// so that multiple movies sharing one directory (A.mp4 + B.mp4) never clash.
-	base := strings.TrimSuffix(filepath.Base(refreshed.Path), filepath.Ext(refreshed.Path))
+	// Scope sidecar names by the shared media stem (e.g. A.mkv.strm / A.mp4.strm -> A-poster.jpg)
+	// so multi-version files in one folder share artwork and never diverge by container.
+	base := mediaSidecarBase(refreshed.Path)
 	if base == "" || base == "." {
 		return
 	}

internal/service/strm_queue.go

@@ -26,6 +26,8 @@ import (
 
 const (
 	strmMaxTaskRetry = 3
+	// strmRecentUploadSkipWindow：上传已成功但 115 列表尚未反映时，同步扫描跳过同路径同大小再入队的宽限窗口。
+	strmRecentUploadSkipWindow = 30 * time.Minute
 )
 
 // downloadWorker 下载队列 worker：认领 → 解析直链 → 下载 → 落盘。
@@ -332,18 +334,28 @@ func (s *StrmService) processUploadTask(ctx context.Context, task *model.StrmUpl
 }
 
 // processUpload115 115 元数据上传：task.RemotePath 存的是父目录 cid，FileName 为远端文件名。
+//
+// 幂等要点：
+//  1. 上传/重试前按父目录 + 文件名 + SHA1 探活：远端已有同内容副本则跳过上传，仅清理其它脏副本；
+//  2. 真正上传成功后把新 file_id 写回 RemoteRef，供下次同步/重试识别；
+//  3. 115 上传不保证同名覆盖，内容不同时仍先删旧再传。
 func (s *StrmService) processUpload115(ctx context.Context, task *model.StrmUploadTask) {
-	finish := func(status, message string) {
+	finish := func(status, message, remoteRef string) {
 		now := time.Now()
 		task.Status = status
 		task.Error = message
 		task.FinishedAt = &now
-		// 条件化收尾：与下载侧一致，防止覆盖已取消任务。
-		if ok, err := s.repo.StrmUpload.UpdateIfRunning(context.Background(), task.ID, map[string]any{
+		updates := map[string]any{
 			"status":      status,
 			"error":       message,
 			"finished_at": &now,
-		}); err != nil {
+		}
+		if remoteRef != "" {
+			task.RemoteRef = remoteRef
+			updates["remote_ref"] = remoteRef
+		}
+		// 条件化收尾：与下载侧一致，防止覆盖已取消任务。
+		if ok, err := s.repo.StrmUpload.UpdateIfRunning(context.Background(), task.ID, updates); err != nil {
 			s.log.Warn("update strm upload task failed", zap.Error(err))
 		} else if !ok {
 			s.log.Info("strm upload task already closed elsewhere", zap.String("id", task.ID))
@@ -351,7 +363,7 @@ func (s *StrmService) processUpload115(ctx context.Context, task *model.StrmUplo
 	}
 	acct, err := s.repo.StrmAccount.FindByID(ctx, task.AccountID)
 	if err != nil || acct == nil {
-		finish(model.StrmTaskFailed, "网盘账号不存在")
+		finish(model.StrmTaskFailed, "网盘账号不存在", "")
 		return
 	}
 	provider, err := s.providerFor(ctx, acct)
@@ -359,58 +371,98 @@ func (s *StrmService) processUpload115(ctx context.Context, task *model.StrmUplo
 		s.uploadTaskFailWithRetry(task, err.Error())
 		return
 	}
-	named, ok := provider.(interface {
-		PutFileNamed(ctx context.Context, parentCID, fileName string, r io.Reader) error
-	})
+	open115, ok := provider.(cloud.OpenAPI115Provider)
 	if !ok {
-		finish(model.StrmTaskFailed, "该网盘不支持元数据上传")
+		finish(model.StrmTaskFailed, "该网盘不支持元数据上传", "")
 		return
 	}
-	// 以本地为准：网盘端已有同名但内容不同的旧元数据时，先尝试批量删除所有旧副本再上传。
-	// 115 的上传接口不保证同名覆盖，直接上传可能产生同名重复文件。
-	// 删除失败时不中止任务——继续上传新文件，旧副本交由下次同步的 cleanupBatchRedundantFiles
-	// 按目录批量清理（下次同步会看到新旧两个版本，命中新版本后把旧版本 cid 收入 pendingDeletes
-	// 异步删除）。这样避免了「删旧失败 → 任务重试 → 再次删旧失败 → 永远无法上传」的死循环。
-	if task.RemoteRef != "" {
-		open115, ok := provider.(cloud.OpenAPI115Provider)
-		if !ok {
-			finish(model.StrmTaskFailed, "该网盘不支持删除远端旧元数据")
-			return
-		}
-		refs := strings.Split(task.RemoteRef, ",")
-			if err := open115.OpenClient().DeleteFiles(ctx, task.RemotePath, refs...); err != nil {
-				s.log.Warn("删除网盘旧元数据失败，跳过删除继续上传新文件",
-					zap.String("task_id", task.ID),
-					zap.String("local_path", task.LocalPath),
-					zap.Error(err))
-				// 不 return：继续上传新文件，旧副本由下次同步清理
-			}
-		}
-		// 优先使用直接本地文件上传接口，零拷贝且彻底根除并发临时文件同名碰撞
-		if localUploader, ok := provider.(interface {
-			PutLocalFile(ctx context.Context, parentCID, localPath string) error
-		}); ok {
-			if err := localUploader.PutLocalFile(ctx, task.RemotePath, task.LocalPath); err != nil {
-				s.uploadTaskFailWithRetry(task, "上传失败："+err.Error())
-				return
-			}
-			finish(model.StrmTaskDone, "")
-			return
-		}
+	client := open115.OpenClient()
 
-		f, err := os.Open(task.LocalPath)
-		if err != nil {
-			s.uploadTaskFailWithRetry(task, "打开本地文件失败："+err.Error())
-			return
-		}
-		if err := named.PutFileNamed(ctx, task.RemotePath, task.FileName, f); err != nil {
-			_ = f.Close()
-			s.uploadTaskFailWithRetry(task, "上传失败："+err.Error())
-			return
-		}
-		_ = f.Close()
-		finish(model.StrmTaskDone, "")
+	localSHA1, shaErr := cloud115.FileSHA1(task.LocalPath)
+	if shaErr != nil {
+		s.uploadTaskFailWithRetry(task, "计算本地 SHA1 失败："+shaErr.Error())
+		return
 	}
+	info, statErr := os.Stat(task.LocalPath)
+	if statErr != nil {
+		s.uploadTaskFailWithRetry(task, "读取本地文件失败："+statErr.Error())
+		return
+	}
+	localSize := info.Size()
+
+	// ── 探活：父目录下是否已有同名同内容副本（覆盖「上传成功但本地当失败重试」）──
+	matched, sameName, probeErr := client.FindNamedContentInParent(ctx, task.RemotePath, task.FileName, localSHA1, localSize)
+	if probeErr != nil {
+		// 探活失败不阻断上传：按原路径继续，避免列表接口抖动导致任务永久卡住
+		s.log.Warn("115 上传前探活失败，继续上传",
+			zap.String("task_id", task.ID),
+			zap.String("local_path", task.LocalPath),
+			zap.Error(probeErr))
+	} else if matched != nil && matched.FileId != "" {
+		staleIDs := collectStale115FileIDs(task.RemoteRef, sameName, matched.FileId)
+		if len(staleIDs) > 0 {
+			if err := client.DeleteFiles(ctx, task.RemotePath, staleIDs...); err != nil {
+				s.log.Warn("探活命中后清理 115 脏副本失败（已跳过上传）",
+					zap.String("task_id", task.ID),
+					zap.String("matched_id", matched.FileId),
+					zap.Error(err))
+			}
+		}
+		s.log.Info("115 元数据已存在同内容副本，跳过上传",
+			zap.String("task_id", task.ID),
+			zap.String("local_path", task.LocalPath),
+			zap.String("file_id", matched.FileId))
+		finish(model.StrmTaskDone, "", matched.FileId)
+		return
+	}
+
+	// ── 需要上传：先尽量删掉任务携带的旧副本，再真正上传 ──
+	// 删除失败时不中止——继续上传新文件，旧副本交由下次同步 cleanupBatchRedundantFiles。
+	if task.RemoteRef != "" {
+		refs := strings.Split(task.RemoteRef, ",")
+		if err := client.DeleteFiles(ctx, task.RemotePath, refs...); err != nil {
+			s.log.Warn("删除网盘旧元数据失败，跳过删除继续上传新文件",
+				zap.String("task_id", task.ID),
+				zap.String("local_path", task.LocalPath),
+				zap.Error(err))
+		}
+	}
+
+	result, err := client.Upload(ctx, task.LocalPath, task.RemotePath, "", "")
+	if err != nil {
+		s.uploadTaskFailWithRetry(task, "上传失败："+err.Error())
+		return
+	}
+	newID := ""
+	if result != nil {
+		newID = strings.TrimSpace(result.FileId)
+	}
+	finish(model.StrmTaskDone, "", newID)
+}
+
+// collectStale115FileIDs 汇总待删脏副本：任务 RemoteRef + 探活所见同名文件，排除 keepID。
+func collectStale115FileIDs(remoteRef string, sameName []cloud115.RemoteFile, keepID string) []string {
+	seen := map[string]struct{}{}
+	var out []string
+	add := func(id string) {
+		id = strings.TrimSpace(id)
+		if id == "" || id == keepID {
+			return
+		}
+		if _, ok := seen[id]; ok {
+			return
+		}
+		seen[id] = struct{}{}
+		out = append(out, id)
+	}
+	for _, id := range strings.Split(remoteRef, ",") {
+		add(id)
+	}
+	for _, f := range sameName {
+		add(f.FileId)
+	}
+	return out
+}
 
 // downloadTaskFailWithRetry 下载失败任务按退避重试，超过上限标记 failed。
 func (s *StrmService) downloadTaskFailWithRetry(task *model.StrmDownloadTask, message string) {

internal/service/strm_queue_test.go

@@ -3,10 +3,12 @@ package service
 import (
 	"context"
 	"errors"
+	"fmt"
 	"net/http"
 	"net/http/httptest"
 	"os"
 	"path/filepath"
+	"strings"
 	"sync"
 	"testing"
 	"time"
@@ -174,8 +176,8 @@ func TestRequeueDownloadTask(t *testing.T) {
 }
 
 // TestProcessUpload115DeletesStaleRemoteMetaFirst 验证 115 覆盖上传语义（以本地为准）：
-// 任务携带网盘旧文件 ID 时，必须先调用 /open/ufile/delete 删除旧元数据再上传本地文件，
-// 避免 115 出现同名重复文件；删除请求应携带 file_ids 与父目录 cid。
+// 探活未命中时，任务携带网盘旧文件 ID 必须先 /open/ufile/delete 再上传；
+// 上传成功后 RemoteRef 回写为新 file_id。
 func TestProcessUpload115DeletesStaleRemoteMetaFirst(t *testing.T) {
 	svc := testStrmService(t)
 	localDir := t.TempDir()
@@ -197,6 +199,10 @@ func TestProcessUpload115DeletesStaleRemoteMetaFirst(t *testing.T) {
 		mu.Lock()
 		defer mu.Unlock()
 		switch r.URL.Path {
+		case "/open/ufile/files":
+			calls = append(calls, "probe")
+			// 探活：目录为空 / 无同内容副本 → 继续删旧上传
+			w.Write([]byte(`{"state":true,"data":[]}`))
 		case "/open/ufile/delete":
 			calls = append(calls, "delete")
 			deleteForm["file_ids"] = r.FormValue("file_ids")
@@ -232,10 +238,13 @@ func TestProcessUpload115DeletesStaleRemoteMetaFirst(t *testing.T) {
 	if task.Status != model.StrmTaskDone {
 		t.Fatalf("upload task should succeed, status = %s, error = %s", task.Status, task.Error)
 	}
+	if task.RemoteRef != "new-1" {
+		t.Fatalf("successful upload should record new file_id in RemoteRef, got %q", task.RemoteRef)
+	}
 	mu.Lock()
 	defer mu.Unlock()
-	if len(calls) != 2 || calls[0] != "delete" || calls[1] != "upload" {
-		t.Fatalf("expected delete before upload, got calls = %v", calls)
+	if len(calls) != 3 || calls[0] != "probe" || calls[1] != "delete" || calls[2] != "upload" {
+		t.Fatalf("expected probe→delete→upload, got calls = %v", calls)
 	}
 	if deleteForm["file_ids"] != "old-file-1" {
 		t.Fatalf("delete file_ids = %q, want old-file-1", deleteForm["file_ids"])
@@ -245,6 +254,97 @@ func TestProcessUpload115DeletesStaleRemoteMetaFirst(t *testing.T) {
 	}
 }
 
+// TestProcessUpload115SkipsWhenProbeFindsSameContent 验证上传/重试前探活命中同内容副本时跳过上传，
+// 并清理其它脏副本，RemoteRef 回写为已存在的 file_id。
+func TestProcessUpload115SkipsWhenProbeFindsSameContent(t *testing.T) {
+	svc := testStrmService(t)
+	localDir := t.TempDir()
+	localFile := filepath.Join(localDir, "movie.nfo")
+	content := []byte("already-on-115")
+	if err := os.WriteFile(localFile, content, 0o644); err != nil {
+		t.Fatal(err)
+	}
+	sha, err := cloud115.FileSHA1(localFile)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	acct := &model.StrmAccount{Name: "fake115", Provider: "cloud115", Config: "{}", Enabled: true}
+	if err := svc.repo.StrmAccount.Create(context.Background(), acct); err != nil {
+		t.Fatal(err)
+	}
+
+	var mu sync.Mutex
+	var calls []string
+	deleteForm := map[string]string{}
+	api := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_ = r.ParseForm()
+		mu.Lock()
+		defer mu.Unlock()
+		switch r.URL.Path {
+		case "/open/ufile/files":
+			calls = append(calls, "probe")
+			w.Write([]byte(fmt.Sprintf(
+				`{"state":true,"data":[
+					{"fid":"keep-1","fc":"1","fn":"movie.nfo","fs":%d,"sha1":%q,"fta":"1"},
+					{"fid":"dirty-2","fc":"1","fn":"movie.nfo","fs":9,"sha1":"DEADBEEF","fta":"1"}
+				]}`, len(content), sha)))
+		case "/open/ufile/delete":
+			calls = append(calls, "delete")
+			deleteForm["file_ids"] = r.FormValue("file_ids")
+			w.Write([]byte(`{"state":true,"data":[]}`))
+		case "/open/upload/init":
+			calls = append(calls, "upload")
+			w.Write([]byte(`{"state":true,"data":{"status":2,"file_id":"should-not","pick_code":"x","callback":null}}`))
+		default:
+			t.Errorf("unexpected 115 api path %s", r.URL.Path)
+			w.Write([]byte(`{"state":false,"message":"unexpected path"}`))
+		}
+	}))
+	defer api.Close()
+	oldPro := cloud115.ProAPIBase
+	cloud115.ProAPIBase = api.URL
+	defer func() { cloud115.ProAPIBase = oldPro }()
+
+	task := &model.StrmUploadTask{
+		Base:       model.Base{ID: "up-skip-1"},
+		SyncPathID: "p1",
+		AccountID:  acct.ID,
+		Provider:   model.StrmProvider115,
+		FileName:   "movie.nfo",
+		LocalPath:  localFile,
+		RemotePath: "777",
+		RemoteRef:  "old-ref",
+		Size:       int64(len(content)),
+		Status:     model.StrmTaskRunning,
+	}
+	svc.processUpload115(context.Background(), task)
+
+	if task.Status != model.StrmTaskDone {
+		t.Fatalf("probe hit should finish done, status=%s err=%s", task.Status, task.Error)
+	}
+	if task.RemoteRef != "keep-1" {
+		t.Fatalf("RemoteRef should be matched file_id keep-1, got %q", task.RemoteRef)
+	}
+	mu.Lock()
+	defer mu.Unlock()
+	if len(calls) != 2 || calls[0] != "probe" || calls[1] != "delete" {
+		t.Fatalf("expected probe→delete (no upload), got %v", calls)
+	}
+	// 脏副本 dirty-2 与任务旧 ref 都应被清理，keep-1 不得出现
+	ids := strings.Split(deleteForm["file_ids"], ",")
+	idSet := map[string]bool{}
+	for _, id := range ids {
+		idSet[strings.TrimSpace(id)] = true
+	}
+	if !idSet["dirty-2"] || !idSet["old-ref"] {
+		t.Fatalf("delete should include dirty-2 and old-ref, got %q", deleteForm["file_ids"])
+	}
+	if idSet["keep-1"] {
+		t.Fatalf("must not delete matched keep-1, got %q", deleteForm["file_ids"])
+	}
+}
+
 // TestBatchResolve115Links 验证下载队列的批量换链：同账号多个 115 任务的
 // pickcode 合并为一次 downurl 请求（官方接口支持逗号分隔多 pick_code），
 // 重复引用去重、非 115 任务不参与、直链携带绑定 UA。

internal/service/strm_service.go

@@ -42,6 +42,7 @@ const (
 	StrmSettingDownloadMeta    = "strm.download_meta"
 	StrmSettingUploadMeta      = "strm.upload_meta"
 	StrmSettingDeleteDir       = "strm.delete_dir"
+	StrmSettingKeepExt         = "strm.keep_ext"
 	StrmSettingDownloadThreads = "strm.download_threads"
 	StrmSettingUploadThreads   = "strm.upload_threads"
 )
@@ -69,6 +70,7 @@ var StrmSettingDefs = map[string]struct {
 	StrmSettingDownloadMeta:    {Default: "true", Label: "下载元数据", Kind: "bool", Help: "同步时把远端 nfo/图片/字幕下载到本地输出目录"},
 	StrmSettingUploadMeta:      {Default: "false", Label: "上传元数据", Kind: "bool", Help: "同步时把本地元数据上传到远端；本地与网盘元数据不同时以本地为准覆盖（需网盘支持写入）"},
 	StrmSettingDeleteDir:       {Default: "false", Label: "清理空目录", Kind: "bool", Help: "清理远端已删除的多余 .strm/元数据后，删除空目录"},
+	StrmSettingKeepExt:         {Default: "false", Label: "保留视频扩展名（多版本）", Kind: "bool", Help: "关闭（默认）：同名不同扩展（如 竞女01.mkv / 竞女01.mp4）按体积→mtime→扩展名优先级择优生成一条 name.strm；开启：分别生成 name.mkv.strm / name.mp4.strm，保留全部版本供播放切换"},
 	Strm115RelayKeySetting:     {Default: "", Label: "115 中继授权共享密钥", Kind: "text", Help: "QMediaSync/MQFamily 中继授权的共享 AES 密钥（OAUTH_RELAY_ENCRYPTION_KEY）；不配置则中继授权不可用"},
 	StrmSettingDownloadThreads: {Default: "6", Label: "下载队列线程数", Kind: "number", Help: "OpenList/CloudDrive2 元数据下载并发数（115 独立限速为 3）"},
 	StrmSettingUploadThreads:   {Default: "2", Label: "上传队列线程数", Kind: "number", Help: "元数据上传并发数"},
@@ -731,6 +733,7 @@ func (s *StrmService) strmEffectiveConfig(ctx context.Context, p *model.StrmSync
 	cfg.DownloadMeta = p.DownloadMeta
 	cfg.UploadMeta = p.UploadMeta
 	cfg.DeleteDir = p.DeleteDir
+	cfg.KeepExt = p.KeepExt
 	cfg.BaseURL = strings.TrimRight(cfg.BaseURL, "/")
 	return cfg, nil
 }
@@ -964,6 +967,7 @@ type strmPathConfig struct {
 	DownloadMeta bool
 	UploadMeta   bool
 	DeleteDir    bool
+	KeepExt      bool
 }
 
 // ─── 本地目录浏览（添加同步目录用，兼容 Windows/Linux） ─────────────────────────

internal/service/strm_sync.go

@@ -49,15 +49,19 @@ type strmSyncState struct {
 	mu                  sync.Mutex
 	processed           int                         // 已处理文件计数（用于定期落库进度）
 	lastProgressFlush   time.Time                   // 上次进度落库时间
-	seenVideo           map[string]bool             // "v:"+去掉扩展名的相对路径 → 远端存在该视频
+	seenVideo           map[string]bool             // "v:"+strm 去扩展名相对路径 → 远端存在该视频（供 prune）
 	seenMeta            map[string]bool             // "m:"+相对路径 → 远端存在该元数据
 	remoteMeta          map[string][]remoteMetaItem // "m:"+相对路径 → 远端元数据副本列表（多副本聚合，支持择优比对与冗余清理）
 	seenMetaTarget      map[string]cloud.FileEntry
 	seenVideoTarget     map[string]cloud.FileEntry
+	// remoteVideos：prefer 模式下同名（去扩展名）视频候选列表，walk 结束后择优写盘
+	remoteVideos map[string][]remoteVideoCandidate
 	activeDownloadPaths map[string]bool // 本地已在排队/进行的下载任务路径（内存去重）
 	activeUploadPaths   map[string]bool // 本地已在排队/进行的上传任务路径（内存去重）
-	pendingDownloads    []*model.StrmDownloadTask
-	pendingUploads      []*model.StrmUploadTask
+	// recentDoneUploadSizes：近期已成功上传的 local_path → size，缩短「done 但列表未到」窗口内的重复入队
+	recentDoneUploadSizes map[string]int64
+	pendingDownloads      []*model.StrmDownloadTask
+	pendingUploads        []*model.StrmUploadTask
 	dirCache            sync.Map          // dirID (string) -> relativePath (string)
 	dirPathToID         map[string]string // relativePath (string) -> dirID（115 上传父目录寻址用，walk 后构建）
 	dirCacheDirty       map[string]string // 待批量落库的目录缓存（dirID → 相对路径），避免逐目录单条 upsert
@@ -65,6 +69,13 @@ type strmSyncState struct {
 	scanIncomplete atomic.Bool // 远端目录树/文件列表本次扫描不完整 → 禁止增量 prune 误删本地文件
 }
 
+// remoteVideoCandidate 记录同名视频的一个远端副本（不同扩展名/体积）。
+type remoteVideoCandidate struct {
+	entry cloud.FileEntry
+	rel   string
+	ext   string
+}
+
 // StartSync 启动一次同步（异步执行，同一目录同时只允许一个任务）。
 // syncType 支持 "incremental"（默认增量）和 "full"（全量同步）。
 func (s *StrmService) StartSync(ctx context.Context, pathID string, syncType ...string) error {
@@ -274,6 +285,7 @@ func (s *StrmService) runSync(ctx context.Context, p *model.StrmSyncPath, rec *m
 		remoteMeta:      map[string][]remoteMetaItem{},
 		seenMetaTarget:  map[string]cloud.FileEntry{},
 		seenVideoTarget: map[string]cloud.FileEntry{},
+		remoteVideos:    map[string][]remoteVideoCandidate{},
 	}
 	if p.Provider != model.StrmProviderLocal {
 		acct, err := s.repo.StrmAccount.FindByID(ctx, p.AccountID)
@@ -350,6 +362,14 @@ func (st *strmSyncState) run() error {
 		} else {
 			st.activeUploadPaths = map[string]bool{}
 		}
+		since := time.Now().Add(-strmRecentUploadSkipWindow)
+		if recent, err := st.s.repo.StrmUpload.GetRecentDoneUploadSizeMap(st.ctx, st.p.ID, since); err == nil {
+			st.recentDoneUploadSizes = recent
+		} else {
+			st.recentDoneUploadSizes = map[string]int64{}
+			st.s.log.Warn("加载近期已完成上传任务失败，跳过 done 窗口去重",
+				zap.String("path_id", st.p.ID), zap.Error(err))
+		}
 	}
 
 	if st.provider != nil {
@@ -376,6 +396,7 @@ func (st *strmSyncState) run() error {
 			return err
 		}
 	}
+	st.flushPreferredVideos()
 	st.flushPendingDownloads()
 	st.flushProgress()
 	if st.cfg.UploadMeta && st.provider != nil {
@@ -1185,21 +1206,123 @@ func (st *strmSyncState) fetch115FilesAdaptive(ctx context.Context, open115 *clo
 	return allFiles, nil
 }
 
-// handleVideo 生成/更新 .strm 文件。
+// handleVideo 收集/生成 .strm 文件。
+// KeepExt=true：每个视频写 name.ext.strm，保留全部版本。
+// KeepExt=false（默认）：同名候选先入队，walk 结束后按体积→mtime→扩展名优先级择优写一条 name.strm。
 func (st *strmSyncState) handleVideo(entry cloud.FileEntry, rel, ext string) {
 	relSansExt := rel[:len(rel)-len(ext)]
-	st.mu.Lock()
-	if st.seenVideo["v:"+relSansExt] {
-		st.mu.Unlock()
+	if st.cfg.KeepExt {
+		st.writeVideoStrm(entry, rel, ext, rel+".strm", true)
 		return
 	}
-	st.seenVideo["v:"+relSansExt] = true
+	st.mu.Lock()
+	if st.remoteVideos == nil {
+		st.remoteVideos = map[string][]remoteVideoCandidate{}
+	}
+	st.remoteVideos[relSansExt] = append(st.remoteVideos[relSansExt], remoteVideoCandidate{
+		entry: entry,
+		rel:   rel,
+		ext:   ext,
+	})
+	st.mu.Unlock()
+	st.touchProgress()
+}
+
+// flushPreferredVideos 在 prefer 模式下对同名多版本择优写盘，并记录冲突日志。
+func (st *strmSyncState) flushPreferredVideos() {
+	if st.cfg.KeepExt {
+		return
+	}
+	st.mu.Lock()
+	pending := st.remoteVideos
+	st.remoteVideos = map[string][]remoteVideoCandidate{}
+	st.mu.Unlock()
+	for base, cands := range pending {
+		if len(cands) == 0 {
+			continue
+		}
+		winnerIdx := 0
+		for i := 1; i < len(cands); i++ {
+			if betterStrmVideoCandidate(cands[i], cands[winnerIdx], st.cfg.VideoExt) {
+				winnerIdx = i
+			}
+		}
+		winner := cands[winnerIdx]
+		if len(cands) > 1 {
+			skippedRels := make([]string, 0, len(cands)-1)
+			skippedRefs := make([]string, 0, len(cands)-1)
+			for i, c := range cands {
+				if i == winnerIdx {
+					continue
+				}
+				skippedRels = append(skippedRels, c.rel)
+				ref := strings.TrimSpace(c.entry.PickCode)
+				if ref == "" {
+					ref = strings.TrimSpace(c.entry.ID)
+				}
+				if ref != "" {
+					skippedRefs = append(skippedRefs, ref)
+				}
+			}
+			st.s.log.Info("strm multi-version prefer",
+				zap.String("base", base),
+				zap.String("winner", winner.rel),
+				zap.String("winner_ref", firstNonEmpty(winner.entry.PickCode, winner.entry.ID)),
+				zap.Int64("winner_size", winner.entry.Size),
+				zap.Strings("skipped", skippedRels),
+				zap.Strings("skipped_refs", skippedRefs),
+			)
+			st.mu.Lock()
+			st.rec.Skipped += int64(len(cands) - 1)
+			st.mu.Unlock()
+		}
+		// 候选已在 handleVideo 计入 Total，此处不再重复 touchProgress
+		st.writeVideoStrm(winner.entry, winner.rel, winner.ext, base+".strm", false)
+	}
+}
+
+// betterStrmVideoCandidate 决定 prefer 模式下的赢家：体积更大 → mtime 更新 → video_ext 列表更靠前。
+func betterStrmVideoCandidate(candidate, current remoteVideoCandidate, videoExtOrder []string) bool {
+	if candidate.entry.Size != current.entry.Size {
+		return candidate.entry.Size > current.entry.Size
+	}
+	if candidate.entry.MTime != current.entry.MTime {
+		return candidate.entry.MTime > current.entry.MTime
+	}
+	return strmExtPriority(candidate.ext, videoExtOrder) < strmExtPriority(current.ext, videoExtOrder)
+}
+
+func strmExtPriority(ext string, order []string) int {
+	ext = strings.TrimPrefix(strings.ToLower(strings.TrimSpace(ext)), ".")
+	for i, item := range order {
+		if strings.TrimPrefix(strings.ToLower(strings.TrimSpace(item)), ".") == ext {
+			return i
+		}
+	}
+	return len(order) + 1
+}
+
+// writeVideoStrm 把单个视频写成目标 .strm（targetRel 相对本地输出根）。
+// countProgress 控制是否计入 Total（prefer 模式下候选已在收集阶段计数）。
+func (st *strmSyncState) writeVideoStrm(entry cloud.FileEntry, rel, ext, targetRel string, countProgress bool) {
+	seenKey := "v:" + strings.TrimSuffix(targetRel, ".strm")
+	st.mu.Lock()
+	if st.seenVideo[seenKey] {
+		st.mu.Unlock()
+		if countProgress {
+			st.touchProgress()
+		}
+		return
+	}
+	st.seenVideo[seenKey] = true
 	st.mu.Unlock()
 
-	targetRel := relSansExt + ".strm"
 	target, err := joinLocalRel(st.p.LocalPath, targetRel)
 	if err != nil {
 		st.s.log.Warn("strm target path out of root", zap.String("rel", targetRel), zap.Error(err))
+		if countProgress {
+			st.touchProgress()
+		}
 		return
 	}
 
@@ -1209,28 +1332,35 @@ func (st *strmSyncState) handleVideo(entry cloud.FileEntry, rel, ext string) {
 	}
 	if _, exists := st.seenVideoTarget[target]; exists {
 		st.mu.Unlock()
-		st.touchProgress()
+		if countProgress {
+			st.touchProgress()
+		}
 		return
 	}
 	st.seenVideoTarget[target] = entry
 	st.mu.Unlock()
 
+	done := func() {
+		if countProgress {
+			st.touchProgress()
+		}
+	}
+
 	// 增量同步模式快速检查：本地 strm 文件存在、非空且修改时间与远端 mtime 一致，直接跳过无需读磁盘
 	if st.syncType == model.StrmSyncTypeIncremental && entry.MTime > 0 {
 		if info, err := os.Stat(target); err == nil && info.Size() > 0 && info.ModTime().Unix() == entry.MTime {
 			st.mu.Lock()
 			st.rec.Skipped++
 			st.mu.Unlock()
-			st.touchProgress()
+			done()
 			return
 		}
 	}
 
 	content, err := st.strmContent(entry, rel, ext)
 	if err != nil {
-		// 并发 worker 下 rec.Message 无锁写会有数据竞争，这里仅记录日志；
-		// 最终同步结果的 message 由 finishSync 统一填充。
 		st.s.log.Warn("build strm content failed", zap.String("file", rel), zap.Error(err))
+		done()
 		return
 	}
 	existing := ""
@@ -1238,7 +1368,6 @@ func (st *strmSyncState) handleVideo(entry cloud.FileEntry, rel, ext string) {
 		existing = string(data)
 	}
 	if existing == content {
-		// 对齐本地 strm 修改时间为远端 mtime，便于后续秒级比对
 		if entry.MTime > 0 {
 			mTime := time.Unix(entry.MTime, 0)
 			_ = os.Chtimes(target, mTime, mTime)
@@ -1246,21 +1375,24 @@ func (st *strmSyncState) handleVideo(entry cloud.FileEntry, rel, ext string) {
 		st.mu.Lock()
 		st.rec.Skipped++
 		st.mu.Unlock()
-		st.touchProgress()
+		done()
 		return
 	}
 	if err := os.MkdirAll(filepath.Dir(target), 0o755); err != nil {
 		st.s.log.Warn("mkdir strm dir failed", zap.String("dir", filepath.Dir(target)), zap.Error(err))
+		done()
 		return
 	}
 	tmp := target + ".tmp"
 	if err := os.WriteFile(tmp, []byte(content), 0o644); err != nil {
 		st.s.log.Warn("write strm tmp failed", zap.String("file", target), zap.Error(err))
+		done()
 		return
 	}
 	if err := os.Rename(tmp, target); err != nil {
 		_ = os.Remove(tmp)
 		st.s.log.Warn("rename strm failed", zap.String("file", target), zap.Error(err))
+		done()
 		return
 	}
 	if entry.MTime > 0 {
@@ -1270,7 +1402,7 @@ func (st *strmSyncState) handleVideo(entry cloud.FileEntry, rel, ext string) {
 	st.mu.Lock()
 	st.rec.NewStrm++
 	st.mu.Unlock()
-	st.touchProgress()
+	done()
 }
 
 // strmContent 构建 strm 文件内容（一行指向本服务播放端点的 URL）。
@@ -1524,50 +1656,8 @@ func (st *strmSyncState) walkLocalSource() error {
 			st.touchProgress()
 			return nil
 		}
-		relSansExt := rel[:len(rel)-len(ext)]
-		st.mu.Lock()
-		st.seenVideo["v:"+relSansExt] = true
-		st.mu.Unlock()
-		content, err := st.strmContent(cloud.FileEntry{Name: filepath.Base(rel), Size: info.Size()}, rel, ext)
-		if err != nil {
-			return nil
-		}
-		target, err := joinLocalRel(st.p.LocalPath, relSansExt+".strm")
-		if err != nil {
-			return nil
-		}
-		mTime := info.ModTime()
-		if st.syncType == model.StrmSyncTypeIncremental {
-			if tInfo, err := os.Stat(target); err == nil && tInfo.Size() > 0 && tInfo.ModTime().Unix() == mTime.Unix() {
-				st.mu.Lock()
-				st.rec.Skipped++
-				st.mu.Unlock()
-				st.touchProgress()
-				return nil
-			}
-		}
-		if data, err := os.ReadFile(target); err == nil && string(data) == content {
-			_ = os.Chtimes(target, mTime, mTime)
-			st.mu.Lock()
-			st.rec.Skipped++
-			st.mu.Unlock()
-			st.touchProgress()
-			return nil
-		}
-		if err := os.MkdirAll(filepath.Dir(target), 0o755); err != nil {
-			return nil
-		}
-		tmp := target + ".tmp"
-		if err := os.WriteFile(tmp, []byte(content), 0o644); err == nil {
-			_ = os.Rename(tmp, target)
-			_ = os.Chtimes(target, mTime, mTime)
-		} else {
-			_ = os.Remove(tmp)
-		}
-		st.mu.Lock()
-		st.rec.NewStrm++
-		st.mu.Unlock()
-		st.touchProgress()
+		entry := cloud.FileEntry{Name: filepath.Base(rel), Size: info.Size(), MTime: info.ModTime().Unix()}
+		st.handleVideo(entry, rel, ext)
 		return nil
 	})
 }
@@ -1575,6 +1665,7 @@ func (st *strmSyncState) walkLocalSource() error {
 // scanLocalMetaForUpload 扫描本地元数据，与远端比对后入上传队列。
 // 以本地为准：网盘端不存在、同名不同大小、或同名同大小但 SHA1 不同（115 提供
 // 远端哈希时做内容级比对）均入队覆盖上传；同名同大小同内容视为同一文件跳过。
+// 另：近期已成功上传且大小未变的路径跳过入队，缩短「任务 done 但 115 列表滞后」窗口。
 func (st *strmSyncState) scanLocalMetaForUpload() error {
 	defer st.flushPendingUploads()
 	if st.activeUploadPaths == nil {
@@ -1584,6 +1675,14 @@ func (st *strmSyncState) scanLocalMetaForUpload() error {
 			st.activeUploadPaths = map[string]bool{}
 		}
 	}
+	if st.recentDoneUploadSizes == nil {
+		since := time.Now().Add(-strmRecentUploadSkipWindow)
+		if recent, err := st.s.repo.StrmUpload.GetRecentDoneUploadSizeMap(st.ctx, st.p.ID, since); err == nil {
+			st.recentDoneUploadSizes = recent
+		} else {
+			st.recentDoneUploadSizes = map[string]int64{}
+		}
+	}
 	var pendingDeletes map[string][]string
 	if st.p.Provider == model.StrmProvider115 {
 		pendingDeletes = map[string][]string{}
@@ -1632,23 +1731,28 @@ func (st *strmSyncState) scanLocalMetaForUpload() error {
 					}
 				}
 			}
-				if matchedIdx >= 0 {
-					// 远端已存在完全一致的副本，跳过上传！
-					// 若远端还存在其他同名脏副本（副本总数 > 1），在 115 下收集待删除 ID，稍后按目录批量删除。
-					// 严禁将已命中的最新副本 ID (matchedID) 放入待删列表，杜绝误杀唯一有效副本。
-					if len(entries) > 1 && st.p.Provider == model.StrmProvider115 {
-						parentCID := st.uploadRemoteTarget(rel)
-						if parentCID != "" {
-							matchedID := entries[matchedIdx].ID
-							for i, it := range entries {
-								if i != matchedIdx && it.ID != "" && it.ID != matchedID {
-									pendingDeletes[parentCID] = append(pendingDeletes[parentCID], it.ID)
-								}
+			if matchedIdx >= 0 {
+				// 远端已存在完全一致的副本，跳过上传！
+				// 若远端还存在其他同名脏副本（副本总数 > 1），在 115 下收集待删除 ID，稍后按目录批量删除。
+				// 严禁将已命中的最新副本 ID (matchedID) 放入待删列表，杜绝误杀唯一有效副本。
+				if len(entries) > 1 && st.p.Provider == model.StrmProvider115 {
+					parentCID := st.uploadRemoteTarget(rel)
+					if parentCID != "" {
+						matchedID := entries[matchedIdx].ID
+						for i, it := range entries {
+							if i != matchedIdx && it.ID != "" && it.ID != matchedID {
+								pendingDeletes[parentCID] = append(pendingDeletes[parentCID], it.ID)
 							}
 						}
 					}
-					return nil
 				}
+				return nil
+			}
+		}
+
+		// 近期已成功上传且大小未变：115 列表可能尚未反映，避免重复入队
+		if doneSize, ok := st.recentDoneUploadSizes[path]; ok && doneSize == info.Size() {
+			return nil
 		}
 
 		remoteTarget := st.uploadRemoteTarget(rel)

internal/service/strm_sync_test.go

@@ -1453,3 +1453,201 @@ func TestWalk115AdaptiveHierarchicalFlatScan(t *testing.T) {
 		}
 	}
 }
+
+// TestScanLocalMetaForUploadSkipsRecentDoneSameSize 验证近期已成功上传且大小未变时，
+// 即使远端列表尚未反映，也不再入队，缩短「done 但列表滞后」窗口。
+func TestScanLocalMetaForUploadSkipsRecentDoneSameSize(t *testing.T) {
+	svc := testStrmService(t)
+	localDir := t.TempDir()
+	nfoPath := filepath.Join(localDir, "movie.nfo")
+	content := []byte("uploaded-recently")
+	writeFile(t, nfoPath, string(content))
+
+	p := &model.StrmSyncPath{
+		Base:       model.Base{ID: "recent-done-skip"},
+		Provider:   model.StrmProvider115,
+		RemotePath: "root-cid",
+		LocalPath:  localDir,
+		UploadMeta: true,
+	}
+	now := time.Now()
+	doneTask := &model.StrmUploadTask{
+		SyncPathID: p.ID,
+		Provider:   model.StrmProvider115,
+		FileName:   "movie.nfo",
+		LocalPath:  nfoPath,
+		RemotePath: "parent-cid",
+		RemoteRef:  "new-file-id",
+		Size:       int64(len(content)),
+		Status:     model.StrmTaskDone,
+		FinishedAt: &now,
+	}
+	if err := svc.repo.StrmUpload.Create(context.Background(), doneTask); err != nil {
+		t.Fatal(err)
+	}
+
+	st := &strmSyncState{
+		s:                     svc,
+		ctx:                   context.Background(),
+		p:                     p,
+		cfg:                   &strmPathConfig{UploadMeta: true, MetaExt: []string{"nfo"}},
+		rec:                   &model.StrmSyncRecord{},
+		seenMeta:              map[string]bool{},
+		remoteMeta:            map[string][]remoteMetaItem{}, // 远端列表空 = 滞后
+		dirPathToID:           map[string]string{"": "parent-cid"},
+		activeUploadPaths:     map[string]bool{},
+		recentDoneUploadSizes: nil, // 让 scan 自行从 DB 加载
+	}
+	if err := st.scanLocalMetaForUpload(); err != nil {
+		t.Fatalf("scanLocalMetaForUpload failed: %v", err)
+	}
+	if st.rec.Uploaded != 0 {
+		t.Fatalf("recent done same-size should skip enqueue, uploaded=%d", st.rec.Uploaded)
+	}
+	if len(st.pendingUploads) != 0 {
+		t.Fatalf("expected no pending uploads, got %d", len(st.pendingUploads))
+	}
+}
+
+// TestScanLocalMetaForUploadRequeuesWhenRecentDoneSizeChanged 本地大小变化后不应被近期 done 窗口挡住。
+func TestScanLocalMetaForUploadRequeuesWhenRecentDoneSizeChanged(t *testing.T) {
+	svc := testStrmService(t)
+	localDir := t.TempDir()
+	nfoPath := filepath.Join(localDir, "movie.nfo")
+	writeFile(t, nfoPath, "new-longer-content-xxx")
+
+	p := &model.StrmSyncPath{
+		Base:       model.Base{ID: "recent-done-resize"},
+		Provider:   model.StrmProvider115,
+		RemotePath: "root-cid",
+		LocalPath:  localDir,
+		UploadMeta: true,
+	}
+	now := time.Now()
+	doneTask := &model.StrmUploadTask{
+		SyncPathID: p.ID,
+		Provider:   model.StrmProvider115,
+		FileName:   "movie.nfo",
+		LocalPath:  nfoPath,
+		RemotePath: "parent-cid",
+		Size:       3, // 旧大小
+		Status:     model.StrmTaskDone,
+		FinishedAt: &now,
+	}
+	if err := svc.repo.StrmUpload.Create(context.Background(), doneTask); err != nil {
+		t.Fatal(err)
+	}
+
+	st := &strmSyncState{
+		s:                 svc,
+		ctx:               context.Background(),
+		p:                 p,
+		cfg:               &strmPathConfig{UploadMeta: true, MetaExt: []string{"nfo"}},
+		rec:               &model.StrmSyncRecord{},
+		seenMeta:          map[string]bool{},
+		remoteMeta:        map[string][]remoteMetaItem{},
+		dirPathToID:       map[string]string{"": "parent-cid"},
+		activeUploadPaths: map[string]bool{},
+	}
+	if err := st.scanLocalMetaForUpload(); err != nil {
+		t.Fatalf("scanLocalMetaForUpload failed: %v", err)
+	}
+	if st.rec.Uploaded != 1 {
+		t.Fatalf("size changed should re-enqueue, uploaded=%d", st.rec.Uploaded)
+	}
+	tasks, _, err := svc.repo.StrmUpload.List(context.Background(), model.StrmTaskPending, 1, 20)
+	if err != nil {
+		t.Fatal(err)
+	}
+	found := false
+	for _, task := range tasks {
+		if task.LocalPath == nfoPath && task.Status == model.StrmTaskPending {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Fatal("expected a pending upload task for resized local file")
+	}
+}
+
+func TestHandleVideoPreferPicksLargestAndSkipsOthers(t *testing.T) {
+	svc := testStrmService(t)
+	local := t.TempDir()
+	p := syncPathRecord(t, svc, model.StrmProviderLocal, t.TempDir(), local, true)
+	p.KeepExt = false
+	st := &strmSyncState{
+		s:               svc,
+		ctx:             context.Background(),
+		p:               p,
+		cfg:             &strmPathConfig{BaseURL: "http://test.local:8096", VideoExt: csvSplit(StrmDefaultVideoExt), AddPath: 1, KeepExt: false},
+		rec:             &model.StrmSyncRecord{},
+		syncType:        model.StrmSyncTypeFull,
+		seenVideo:       map[string]bool{},
+		seenVideoTarget: map[string]cloud.FileEntry{},
+		remoteVideos:    map[string][]remoteVideoCandidate{},
+	}
+	st.handleVideo(cloud.FileEntry{ID: "1", Name: "竞女01.mp4", Size: 100, PickCode: "pc-mp4", MTime: 1000}, "竞女01.mp4", ".mp4")
+	st.handleVideo(cloud.FileEntry{ID: "2", Name: "竞女01.mkv", Size: 500, PickCode: "pc-mkv", MTime: 900}, "竞女01.mkv", ".mkv")
+	st.flushPreferredVideos()
+
+	preferPath := filepath.Join(local, "竞女01.strm")
+	if _, err := os.Stat(preferPath); err != nil {
+		t.Fatalf("expected prefer strm at %s: %v", preferPath, err)
+	}
+	data, err := os.ReadFile(preferPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	content := string(data)
+	if !strings.Contains(content, "video.mkv") {
+		t.Fatalf("prefer should pick larger mkv, content=%s", content)
+	}
+	if !strings.Contains(content, "%E7%AB%9E%E5%A5%B301.mkv") && !strings.Contains(content, "竞女01.mkv") {
+		t.Fatalf("prefer strm should point at winner path, content=%s", content)
+	}
+	if _, err := os.Stat(filepath.Join(local, "竞女01.mkv.strm")); !os.IsNotExist(err) {
+		t.Fatal("prefer mode must not write keep_ext names")
+	}
+	if st.rec.NewStrm != 1 {
+		t.Fatalf("NewStrm=%d want 1", st.rec.NewStrm)
+	}
+	if st.rec.Skipped < 1 {
+		t.Fatalf("Skipped=%d want >=1 for loser", st.rec.Skipped)
+	}
+}
+
+func TestHandleVideoKeepExtWritesAllVersions(t *testing.T) {
+	svc := testStrmService(t)
+	local := t.TempDir()
+	p := syncPathRecord(t, svc, model.StrmProviderLocal, t.TempDir(), local, true)
+	p.KeepExt = true
+	st := &strmSyncState{
+		s:               svc,
+		ctx:             context.Background(),
+		p:               p,
+		cfg:             &strmPathConfig{BaseURL: "http://test.local:8096", VideoExt: csvSplit(StrmDefaultVideoExt), AddPath: 1, KeepExt: true},
+		rec:             &model.StrmSyncRecord{},
+		syncType:        model.StrmSyncTypeFull,
+		seenVideo:       map[string]bool{},
+		seenVideoTarget: map[string]cloud.FileEntry{},
+		remoteVideos:    map[string][]remoteVideoCandidate{},
+	}
+	st.handleVideo(cloud.FileEntry{ID: "1", Name: "竞女01.mp4", Size: 100, PickCode: "pc-mp4"}, "竞女01.mp4", ".mp4")
+	st.handleVideo(cloud.FileEntry{ID: "2", Name: "竞女01.mkv", Size: 500, PickCode: "pc-mkv"}, "竞女01.mkv", ".mkv")
+	st.flushPreferredVideos()
+
+	mkvPath := filepath.Join(local, "竞女01.mkv.strm")
+	mp4Path := filepath.Join(local, "竞女01.mp4.strm")
+	for _, path := range []string{mkvPath, mp4Path} {
+		if _, err := os.Stat(path); err != nil {
+			t.Fatalf("expected keep_ext strm %s: %v", path, err)
+		}
+	}
+	if _, err := os.Stat(filepath.Join(local, "竞女01.strm")); !os.IsNotExist(err) {
+		t.Fatal("keep_ext mode must not write stripped name.strm")
+	}
+	if st.rec.NewStrm != 2 {
+		t.Fatalf("NewStrm=%d want 2", st.rec.NewStrm)
+	}
+}

internal/service/subtitle.go

@@ -142,7 +142,10 @@ func (s *SubtitleService) discoverUncached(ctx context.Context, mediaID string)
 		return nil, errors.New("media not found")
 	}
 	dir := filepath.Dir(m.Path)
-	base := strings.TrimSuffix(filepath.Base(m.Path), filepath.Ext(m.Path))
+	bases := mediaSidecarBaseVariants(m.Path)
+	if len(bases) == 0 {
+		bases = []string{strings.TrimSuffix(filepath.Base(m.Path), filepath.Ext(m.Path))}
+	}
 
 	candidates := make([]string, 0, 16)
 	candidates = append(candidates, dir)
@@ -166,13 +169,23 @@ func (s *SubtitleService) discoverUncached(ctx context.Context, mediaID string)
 				continue
 			}
 			fullName := strings.TrimSuffix(e.Name(), ext)
-			if !strings.HasPrefix(strings.ToLower(fullName), strings.ToLower(base)) &&
-				c == dir {
-				// In the same directory we require a basename match;
-				// inside subs/ subdirs we accept anything.
-				continue
+			matchedBase := ""
+			if c == dir {
+				for _, base := range bases {
+					if strings.HasPrefix(strings.ToLower(fullName), strings.ToLower(base)) {
+						matchedBase = base
+						break
+					}
+				}
+				if matchedBase == "" {
+					// In the same directory we require a basename match;
+					// inside subs/ subdirs we accept anything.
+					continue
+				}
+			} else if len(bases) > 0 {
+				matchedBase = bases[0]
 			}
-			lang := detectLang(fullName, base)
+			lang := detectLang(fullName, matchedBase)
 			tracks = append(tracks, SubtitleTrack{
 				Lang:  lang,
 				Label: lang,

web/src/api/auth.ts

@@ -19,4 +19,7 @@ export const authAPI = {
     api
       .post('/me/password', { old_password: oldPassword, new_password: newPassword })
       .then((r) => r.data),
+
+  createTemporaryPassword: () =>
+    api.post<{ code: string; expires_in: number }>('/me/temporary-password').then((r) => r.data),
 }

web/src/components/LayoutSections.tsx

@@ -137,7 +137,7 @@ export function LayoutWorkspace({ routeKey, showMobileBottomNav = false }: Layou
   }
 
   return (
-    <main id="app-main-scroll" className={clsx('flex-1 overflow-y-auto px-4 py-6 md:px-8 md:py-10', bottomPad)}>
+    <main id="app-main-scroll" className={clsx('flex-1 overflow-y-auto [overflow-anchor:none] px-4 py-6 md:px-8 md:py-10', bottomPad)}>
       <div className="max-w-7xl mx-auto">
         <AnimatePresence mode="wait">
           <motion.div

web/src/components/LayoutUserMenu.tsx

@@ -2,11 +2,12 @@ import { useCallback, useEffect, useLayoutEffect, useRef, useState, type ReactNo
 import { createPortal } from 'react-dom'
 import { Link, useLocation } from 'react-router-dom'
 import { AnimatePresence, motion } from 'framer-motion'
-import { Cast, ChevronDown, Clock, Heart, ListMusic, LogOut, Settings, UserCog } from 'lucide-react'
+import { Cast, ChevronDown, Clock, Heart, ListMusic, LogOut, Settings, Tv, UserCog } from 'lucide-react'
 import clsx from 'clsx'
 
 import type { PlayProfile } from '../types'
 import { LayoutThemeToggle } from './LayoutThemeToggle'
+import { TemporaryPasswordDialog } from './TemporaryPasswordDialog'
 import type { ThemeMode } from './useThemeMode'
 
 type MenuPosition = {
@@ -52,6 +53,7 @@ export function LayoutUserMenu({
   const triggerRef = useRef<HTMLButtonElement>(null)
   const onCloseRef = useRef(onClose)
   const [menuPosition, setMenuPosition] = useState<MenuPosition | null>(null)
+  const [isOtpOpen, setIsOtpOpen] = useState(false)
 
   onCloseRef.current = onClose
 
@@ -121,11 +123,22 @@ export function LayoutUserMenu({
             className="fixed z-[121] w-56 origin-top-right rounded-2xl border border-[var(--app-border)] bg-[var(--app-panel)] p-2 shadow-xl"
             onPointerDown={(event) => event.stopPropagation()}
           >
-            <UserMenuLink to="/profile" icon={<Settings size={16} />} label="设置" onNavigate={onClose} />
-            <UserMenuLink to="/favourites" icon={<Heart size={16} />} label="我的收藏" onNavigate={onClose} />
-            <UserMenuLink to="/playlists" icon={<ListMusic size={16} />} label="播放列表" onNavigate={onClose} />
-            <UserMenuLink to="/history" icon={<Clock size={16} />} label="观看历史" onNavigate={onClose} />
-            <UserMenuLink to="/dlna" icon={<Cast size={16} />} label="DLNA投屏" onNavigate={onClose} />
+	            <UserMenuLink to="/profile" icon={<Settings size={16} />} label="设置" onNavigate={onClose} />
+	            <UserMenuLink to="/favourites" icon={<Heart size={16} />} label="我的收藏" onNavigate={onClose} />
+	            <UserMenuLink to="/playlists" icon={<ListMusic size={16} />} label="播放列表" onNavigate={onClose} />
+	            <UserMenuLink to="/history" icon={<Clock size={16} />} label="观看历史" onNavigate={onClose} />
+	            <UserMenuLink to="/dlna" icon={<Cast size={16} />} label="DLNA投屏" onNavigate={onClose} />
+	            <button
+	              type="button"
+	              onClick={() => {
+	                onClose()
+	                setIsOtpOpen(true)
+	              }}
+	              className="flex w-full items-center gap-3 rounded-xl px-3 py-2 text-sm text-[var(--app-subtle)] transition-colors hover:bg-[var(--app-hover)] hover:text-[var(--app-text)]"
+	            >
+	              <Tv size={16} />
+	              <span>电视端临时登录码</span>
+	            </button>
             {themeMode && onThemeChange ? (
               <div className="px-3 py-2 sm:hidden">
                 <p className="mb-2 text-[10px] font-bold uppercase tracking-wider text-[var(--app-muted)]">
@@ -203,6 +216,7 @@ export function LayoutUserMenu({
         <ChevronDown size={14} className="text-[var(--app-muted)]" />
       </button>
       {menuPortal}
+      <TemporaryPasswordDialog isOpen={isOtpOpen} onClose={() => setIsOtpOpen(false)} />
     </div>
   )
 }

web/src/components/MediaVersionSwitcher.tsx

@@ -0,0 +1,72 @@
+import { Layers } from 'lucide-react'
+import { Link } from 'react-router-dom'
+
+import type { Media } from '../types'
+import { mediaVersionLabel, mediaVersionsOf } from '../utils/mediaVersion'
+
+type MediaVersionSwitcherProps = {
+  media: Media
+  /** 详情页：用 Link 跳转播放；播放页：回调切换 */
+  mode?: 'detail' | 'player'
+  onSelect?: (version: Media) => void
+  className?: string
+}
+
+export function MediaVersionSwitcher({
+  media,
+  mode = 'detail',
+  onSelect,
+  className = '',
+}: MediaVersionSwitcherProps) {
+  const versions = mediaVersionsOf(media)
+  if (versions.length <= 1) return null
+  const dark = mode === 'player'
+
+  return (
+    <div className={`space-y-2 ${className}`.trim()}>
+      <div className={`flex items-center gap-2 text-sm font-semibold ${dark ? 'text-white/90' : 'text-ink-600'}`}>
+        <Layers size={14} className={dark ? 'text-white/60' : 'text-sand-500'} />
+        <span>版本（{versions.length}）</span>
+      </div>
+      <div className="flex flex-wrap gap-2">
+        {versions.map((version) => {
+          const active = version.id === media.id
+          const label = mediaVersionLabel(version)
+          const className = dark
+            ? active
+              ? 'border-white/40 bg-white/20 text-white'
+              : 'border-white/15 bg-white/5 text-white/80 hover:bg-white/15'
+            : active
+              ? 'border-brand-500/40 bg-brand-50 text-[#b07d35]'
+              : 'border-gray-200 bg-white text-ink-100 hover:border-brand-500/30 hover:bg-brand-50/40'
+          if (mode === 'player') {
+            return (
+              <button
+                key={version.id}
+                type="button"
+                disabled={active}
+                onClick={() => onSelect?.(version)}
+                className={`rounded-xl border px-3 py-1.5 text-xs font-semibold transition disabled:cursor-default ${className}`}
+                title={version.path}
+              >
+                {label}
+              </button>
+            )
+          }
+          return (
+            <Link
+              key={version.id}
+              to={`/play/${version.id}`}
+              state={{ from: `/media/${media.id}` }}
+              className={`rounded-xl border px-3 py-1.5 text-xs font-semibold transition ${className}`}
+              title={version.path}
+            >
+              {label}
+              {active ? ' · 当前' : ''}
+            </Link>
+          )
+        })}
+      </div>
+    </div>
+  )
+}

web/src/components/TemporaryPasswordDialog.tsx

@@ -0,0 +1,191 @@
+import { useEffect, useState } from 'react'
+import { createPortal } from 'react-dom'
+import { Check, Copy, Loader2, RefreshCw, Tv, X } from 'lucide-react'
+import toast from 'react-hot-toast'
+
+import { authAPI } from '../api/auth'
+import { useAuthStore } from '../stores/auth'
+
+export function TemporaryPasswordDialog({
+  isOpen,
+  onClose,
+}: {
+  isOpen: boolean
+  onClose: () => void
+}) {
+  const user = useAuthStore((s) => s.user)
+  const [code, setCode] = useState('')
+  const [expiresIn, setExpiresIn] = useState(0)
+  const [loading, setLoading] = useState(false)
+  const [copied, setCopied] = useState(false)
+
+  const fetchCode = async () => {
+    setLoading(true)
+    try {
+      const res = await authAPI.createTemporaryPassword()
+      setCode(res.code)
+      setExpiresIn(res.expires_in)
+      setCopied(false)
+    } catch (err: unknown) {
+      const msg =
+        (err as { response?: { data?: { error?: string } } })?.response?.data?.error ??
+        '获取临时密码失败'
+      toast.error(msg)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  useEffect(() => {
+    if (isOpen) {
+      fetchCode()
+    } else {
+      setCode('')
+      setExpiresIn(0)
+    }
+  }, [isOpen])
+
+  useEffect(() => {
+    if (expiresIn <= 0) return
+    const timer = setInterval(() => {
+      setExpiresIn((prev) => {
+        if (prev <= 1) {
+          clearInterval(timer)
+          return 0
+        }
+        return prev - 1
+      })
+    }, 1000)
+    return () => clearInterval(timer)
+  }, [expiresIn])
+
+  const copyCode = async () => {
+    if (!code) return
+    try {
+      await navigator.clipboard.writeText(code)
+      setCopied(true)
+      toast.success('已复制到剪贴板')
+      setTimeout(() => setCopied(false), 2000)
+    } catch {
+      toast.error('复制失败，请手动长按复制')
+    }
+  }
+
+  if (!isOpen || typeof document === 'undefined') return null
+
+  return createPortal(
+    <div
+      className="fixed inset-0 z-[999] flex items-center justify-center bg-black/65 p-3 sm:p-4 backdrop-blur-sm"
+      onClick={onClose}
+    >
+      <div
+        role="dialog"
+        aria-modal="true"
+        className="w-full max-w-[calc(100vw-2rem)] sm:max-w-md max-h-[90dvh] flex flex-col overflow-hidden rounded-3xl border border-[var(--app-border)] bg-[var(--app-panel)] p-4 sm:p-6 shadow-2xl transition-all"
+        onClick={(e) => e.stopPropagation()}
+      >
+        {/* Header */}
+        <div className="flex items-center justify-between border-b border-[var(--app-border)] pb-3 sm:pb-4 shrink-0">
+          <div className="flex items-center gap-2.5 sm:gap-3 min-w-0">
+            <div className="flex h-9 w-9 sm:h-10 sm:w-10 shrink-0 items-center justify-center rounded-2xl bg-brand-500/10 text-brand-500">
+              <Tv size={20} className="sm:w-[22px] sm:h-[22px]" />
+            </div>
+            <div className="min-w-0">
+              <h3 className="font-display text-base sm:text-lg font-bold text-[var(--app-text)] truncate">
+                电视端临时登录码 (OTP)
+              </h3>
+              <p className="text-[11px] sm:text-xs text-[var(--app-muted)] truncate">
+                适用于 Emby / Jellyfin / Infuse 客户端快速免密登录
+              </p>
+            </div>
+          </div>
+          <button
+            type="button"
+            onClick={onClose}
+            className="rounded-xl p-1.5 text-[var(--app-muted)] transition-colors hover:bg-[var(--app-hover)] hover:text-[var(--app-text)] shrink-0 ml-2"
+          >
+            <X size={18} />
+          </button>
+        </div>
+
+        {/* Content */}
+        <div className="my-4 space-y-3.5 sm:space-y-4 overflow-y-auto flex-1 pr-0.5">
+          <div className="flex items-center justify-between text-[11px] sm:text-xs text-[var(--app-muted)]">
+            <div>
+              <span>登录账号：</span>
+              <span className="font-mono font-bold text-[var(--app-text)]">{user?.username}</span>
+            </div>
+            {expiresIn > 0 ? (
+              <div>
+                <span>有效时间剩余：</span>
+                <span className={`font-mono font-bold ${expiresIn < 60 ? 'text-red-500' : 'text-brand-500'}`}>
+                  {Math.floor(expiresIn / 60).toString().padStart(2, '0')}:{(expiresIn % 60).toString().padStart(2, '0')}
+                </span>
+              </div>
+            ) : null}
+          </div>
+
+          <div className="flex items-center justify-between rounded-2xl border border-[var(--app-border)] bg-[var(--app-bg)] p-3 sm:p-4">
+            {loading ? (
+              <div className="flex h-10 w-full items-center justify-center text-[var(--app-muted)]">
+                <Loader2 size={24} className="animate-spin text-brand-500" />
+              </div>
+            ) : code && expiresIn > 0 ? (
+              <>
+                <div className="font-mono text-2xl sm:text-3xl font-black tracking-widest text-brand-500 select-all">
+                  {code}
+                </div>
+                <button
+                  type="button"
+                  onClick={copyCode}
+                  className="flex items-center gap-1.5 rounded-xl bg-brand-500/10 px-3 sm:px-3.5 py-1.5 sm:py-2 text-xs font-semibold text-brand-500 transition-colors hover:bg-brand-500/20 shrink-0"
+                >
+                  {copied ? <Check size={14} /> : <Copy size={14} />}
+                  {copied ? '已复制' : '复制密码'}
+                </button>
+              </>
+            ) : (
+              <div className="flex w-full items-center justify-between text-xs sm:text-sm text-[var(--app-muted)]">
+                <span>登录码已失效或未生成</span>
+                <button
+                  type="button"
+                  onClick={fetchCode}
+                  className="flex items-center gap-1.5 rounded-xl bg-brand-500 px-3 py-1.5 text-xs font-semibold text-white shrink-0"
+                >
+                  <RefreshCw size={13} />
+                  立即生成
+                </button>
+              </div>
+            )}
+          </div>
+
+          <div className="rounded-2xl border border-[var(--app-border)] bg-[var(--app-panel-elevated)] p-3 text-[11px] sm:text-xs leading-relaxed text-[var(--app-muted)]">
+            <span className="font-semibold text-[var(--app-text)]">使用方法：</span>
+            在电视端或外部设备的 Emby 登录界面输入用户名 <code className="font-bold text-brand-500">{user?.username}</code> 和上方 6 位临时码。登录后临时码立即作废（一次性阅后即焚），客户端将自动获取长期持久令牌。
+          </div>
+        </div>
+
+        {/* Footer */}
+        <div className="flex items-center justify-between border-t border-[var(--app-border)] pt-3 sm:pt-4 shrink-0">
+          <button
+            type="button"
+            onClick={fetchCode}
+            disabled={loading}
+            className="flex items-center gap-1.5 rounded-xl px-2.5 sm:px-3 py-1.5 sm:py-2 text-xs font-medium text-[var(--app-muted)] transition-colors hover:bg-[var(--app-hover)] hover:text-[var(--app-text)] disabled:opacity-50"
+          >
+            <RefreshCw size={13} className={loading ? 'animate-spin' : ''} />
+            重新生成
+          </button>
+          <button
+            type="button"
+            onClick={onClose}
+            className="rounded-xl border border-[var(--app-border)] bg-[var(--app-panel-elevated)] px-3.5 sm:px-4 py-1.5 sm:py-2 text-xs font-semibold text-[var(--app-text)] transition-colors hover:bg-[var(--app-hover)]"
+          >
+            完成并关闭
+          </button>
+        </div>
+      </div>
+    </div>,
+    document.body
+  )
+}

web/src/components/VirtualMediaGrid.tsx

@@ -1,37 +1,24 @@
-import { forwardRef, useEffect, useState, type CSSProperties, type ReactNode } from 'react'
-import { VirtuosoGrid } from 'react-virtuoso'
+import { useCallback, useEffect, useLayoutEffect, useRef, useState, type ReactNode } from 'react'
+import { Virtuoso } from 'react-virtuoso'
+import clsx from 'clsx'
 
 // 与 LibraryMediaSections 等处的海报网格保持同一套响应式列配置。
 export const MEDIA_GRID_CLASS =
   'grid grid-cols-3 gap-4 sm:grid-cols-4 md:grid-cols-5 lg:grid-cols-6 xl:grid-cols-7 2xl:grid-cols-8'
 
-// 首帧滚动容器尚未就绪时的占位渲染数量（约一屏）。
-const FIRST_PAINT_COUNT = 28
+function getFallbackColumns(width: number): number {
+  if (width >= 1536) return 8
+  if (width >= 1280) return 7
+  if (width >= 1024) return 6
+  if (width >= 768) return 5
+  if (width >= 640) return 4
+  return 3
+}
 
-const GridList = forwardRef<HTMLDivElement, { style?: CSSProperties; children?: ReactNode }>(
-  function GridList({ children, style, ...rest }, ref) {
-    return (
-      <div ref={ref} style={style} {...rest} className={MEDIA_GRID_CLASS}>
-        {children}
-      </div>
-    )
-  },
-)
-
-const GridItem = forwardRef<HTMLDivElement, { style?: CSSProperties; children?: ReactNode }>(
-  function GridItem({ children, style, ...rest }, ref) {
-    return (
-      <div ref={ref} style={style} {...rest}>
-        {children}
-      </div>
-    )
-  },
-)
-
-// VirtualMediaGrid 大库性能优化：无论库里有 1 千还是 5 万张卡片，
-// 实际挂载的只有视口内及邻近一屏的节点。滚动容器是 Layout 的
-// <main id="app-main-scroll">（非 window 滚动），通过 customScrollParent 接入；
-// 元素尚未挂载时先渲染一屏卡片，挂载后切换为虚拟列表。
+// VirtualMediaGrid 大库性能优化：
+// 采用按行虚拟滚动（Row-based Virtualization）。相比 VirtuosoGrid 强制要求所有网格项
+// 绝对等高且易受 CSS Grid 亚像素尺寸扰动引发死循环闪烁，按行使用基础 Virtuoso 组件
+// 天然支持每行真实高度，并且每一行内部保持原生的响应式 CSS Grid 布局。
 export function VirtualMediaGrid({
   totalCount,
   renderItem,
@@ -39,29 +26,98 @@ export function VirtualMediaGrid({
   totalCount: number
   renderItem: (index: number) => ReactNode
 }) {
-  const [scrollParent, setScrollParent] = useState<HTMLElement | null>(null)
+  const containerRef = useRef<HTMLDivElement>(null)
+  const probeRef = useRef<HTMLDivElement>(null)
+  const [columns, setColumns] = useState(() => {
+    if (typeof window !== 'undefined') {
+      return getFallbackColumns(window.innerWidth)
+    }
+    return 4
+  })
 
-  useEffect(() => {
-    setScrollParent(document.getElementById('app-main-scroll'))
+  const updateColumns = useCallback(() => {
+    if (probeRef.current) {
+      const computed = window.getComputedStyle(probeRef.current).gridTemplateColumns
+      if (computed && computed !== 'none') {
+        const count = computed.trim().split(/\s+/).filter(Boolean).length
+        if (count > 0) {
+          setColumns((prev) => (prev !== count ? count : prev))
+          return
+        }
+      }
+    }
+    const width = containerRef.current?.clientWidth || (typeof window !== 'undefined' ? window.innerWidth : 0)
+    if (width > 0) {
+      const fallback = getFallbackColumns(width)
+      setColumns((prev) => (prev !== fallback ? fallback : prev))
+    }
   }, [])
 
-  if (!scrollParent) {
-    return (
-      <div className={MEDIA_GRID_CLASS}>
-        {Array.from({ length: Math.min(totalCount, FIRST_PAINT_COUNT) }, (_, index) => (
-          <div key={index}>{renderItem(index)}</div>
-        ))}
-      </div>
-    )
-  }
+  useLayoutEffect(() => {
+    updateColumns()
+  }, [updateColumns])
+
+  useEffect(() => {
+    const el = containerRef.current
+    if (!el || typeof ResizeObserver === 'undefined') {
+      window.addEventListener('resize', updateColumns)
+      return () => window.removeEventListener('resize', updateColumns)
+    }
+    const observer = new ResizeObserver(() => {
+      updateColumns()
+    })
+    observer.observe(el)
+    return () => observer.disconnect()
+  }, [updateColumns])
+
+  const [scrollParent, setScrollParent] = useState<HTMLElement | null>(() => {
+    return typeof document !== 'undefined' ? document.getElementById('app-main-scroll') : null
+  })
+
+  useEffect(() => {
+    if (!scrollParent) {
+      setScrollParent(document.getElementById('app-main-scroll'))
+    }
+  }, [scrollParent])
+
+  const rowCount = Math.ceil(totalCount / columns)
 
   return (
-    <VirtuosoGrid
-      customScrollParent={scrollParent}
-      totalCount={totalCount}
-      overscan={800}
-      components={{ List: GridList, Item: GridItem }}
-      itemContent={renderItem}
-    />
+    <div ref={containerRef} className="relative w-full">
+      {/* 隐藏探针节点：跟随 Tailwind MEDIA_GRID_CLASS 响应式断点自动计算当前列数 */}
+      <div
+        ref={probeRef}
+        className={clsx(MEDIA_GRID_CLASS, 'pointer-events-none invisible absolute h-0 w-full overflow-hidden')}
+        aria-hidden="true"
+      />
+
+      {!scrollParent ? (
+        <div className={MEDIA_GRID_CLASS}>
+          {Array.from({ length: Math.min(totalCount, columns * 4) }, (_, index) => (
+            <div key={index}>{renderItem(index)}</div>
+          ))}
+        </div>
+      ) : (
+        <Virtuoso
+          customScrollParent={scrollParent}
+          totalCount={rowCount}
+          overscan={800}
+          itemContent={(rowIndex) => {
+            const start = rowIndex * columns
+            return (
+              <div className={clsx(MEDIA_GRID_CLASS, rowIndex < rowCount - 1 && 'pb-4')}>
+                {Array.from({ length: columns }, (_, colIndex) => {
+                  const itemIndex = start + colIndex
+                  if (itemIndex >= totalCount) {
+                    return <div key={colIndex} aria-hidden="true" />
+                  }
+                  return <div key={itemIndex}>{renderItem(itemIndex)}</div>
+                })}
+              </div>
+            )
+          }}
+        />
+      )}
+    </div>
   )
 }

web/src/pages/MediaDetailPageSections.tsx

@@ -5,6 +5,7 @@ import { PageBackButton } from '../components/PageBackButton'
 
 import { ExternalPlayerButton } from '../components/ExternalPlayerButton'
 import { ManualScrapeDialog } from '../components/ManualScrapeDialog'
+import { MediaVersionSwitcher } from '../components/MediaVersionSwitcher'
 import { MetadataEditDialog } from '../components/MetadataEditDialog'
 import { OrganizeMediaDialog } from '../components/OrganizeMediaDialog'
 import type { Media } from '../types'
@@ -163,6 +164,7 @@ export function MediaDetailMainContent({
             onToggleFavourite={onToggleFavourite}
             playTargetId={playTargetId}
           />
+          <MediaVersionSwitcher media={media} mode="detail" />
           {isAdmin && (
             <MediaDetailAdminPanel
               media={media}

web/src/pages/PlayerPage.tsx

@@ -18,6 +18,8 @@ import { PlayerTopBar } from './PlayerTopBar'
 import { PlayerVideoStage } from './PlayerVideoStage'
 import { PlayerDanmakuPanel } from '../components/PlayerDanmakuPanel'
 import { PlayerPlaylistPanel } from '../components/PlayerPlaylistPanel'
+import { MediaVersionSwitcher } from '../components/MediaVersionSwitcher'
+import { mediaVersionsOf } from '../utils/mediaVersion'
 
 // Fullscreen, dark-themed video page.
 //
@@ -420,6 +422,15 @@ export function PlayerPage() {
     [navigate, location.search, location.state],
   )
 
+  const versionList = useMemo(() => mediaVersionsOf(media), [media])
+  const switchVersion = useCallback(
+    (version: Media) => {
+      if (!version?.id || version.id === media?.id) return
+      playEpisode(version)
+    },
+    [media?.id, playEpisode],
+  )
+
   const handlePrevEpisode = useCallback(() => {
     if (prevEpisode) {
       playEpisode(prevEpisode)
@@ -575,6 +586,13 @@ export function PlayerPage() {
         onBack={goBack}
         onToggleMode={toggleMode}
       />
+      {versionList.length > 1 && (
+        <div className="pointer-events-none absolute inset-x-0 top-16 z-20 flex justify-center px-4 sm:top-20">
+          <div className="pointer-events-auto max-w-3xl rounded-2xl border border-white/15 bg-black/70 px-3 py-2 shadow-xl backdrop-blur">
+            <MediaVersionSwitcher media={media!} mode="player" onSelect={switchVersion} className="text-white" />
+          </div>
+        </div>
+      )}
       <PlayerVideoStage
         media={media}
         loadError={loadError}

web/src/pages/ProfilePage.tsx

@@ -1,6 +1,6 @@
-import { FormEvent, useState } from 'react'
+import { FormEvent, useEffect, useState } from 'react'
 import toast from 'react-hot-toast'
-import { EyeOff, KeyRound, Loader2, Save } from 'lucide-react'
+import { Check, Copy, EyeOff, KeyRound, Loader2, Save, Tv } from 'lucide-react'
 
 import { authAPI } from '../api/auth'
 import { profileAPI } from '../api/profile'
@@ -21,6 +21,65 @@ export function ProfilePage() {
   const [savingProfile, setSavingProfile] = useState(false)
   const [savingPassword, setSavingPassword] = useState(false)
 
+  const [otpCode, setOtpCode] = useState('')
+  const [otpExpiresIn, setOtpExpiresIn] = useState(0)
+  const [generatingOtp, setGeneratingOtp] = useState(false)
+  const [copiedOtp, setCopiedOtp] = useState(false)
+
+  useEffect(() => {
+    if (otpExpiresIn <= 0) return
+    const timer = setInterval(() => {
+      setOtpExpiresIn((prev) => {
+        if (prev <= 1) {
+          clearInterval(timer)
+          return 0
+        }
+        return prev - 1
+      })
+    }, 1000)
+    return () => clearInterval(timer)
+  }, [otpExpiresIn])
+
+  useEffect(() => {
+    if (window.location.hash === '#tv-otp') {
+      const el = document.getElementById('tv-otp')
+      if (el) {
+        el.scrollIntoView({ behavior: 'smooth' })
+      }
+    }
+  }, [])
+
+  const onGenerateOTP = async () => {
+    if (generatingOtp) return
+    setGeneratingOtp(true)
+    try {
+      const res = await authAPI.createTemporaryPassword()
+      setOtpCode(res.code)
+      setOtpExpiresIn(res.expires_in)
+      setCopiedOtp(false)
+      toast.success('已生成 6 位临时登录码')
+    } catch (err: unknown) {
+      const msg =
+        (err as { response?: { data?: { error?: string } } })?.response?.data?.error ??
+        '生成临时密码失败'
+      toast.error(msg)
+    } finally {
+      setGeneratingOtp(false)
+    }
+  }
+
+  const copyOTP = async () => {
+    if (!otpCode) return
+    try {
+      await navigator.clipboard.writeText(otpCode)
+      setCopiedOtp(true)
+      toast.success('已复制到剪贴板')
+      setTimeout(() => setCopiedOtp(false), 2000)
+    } catch {
+      toast.error('复制失败，请手动长按复制')
+    }
+  }
+
   const onProfile = async (e: FormEvent) => {
     e.preventDefault()
     if (savingProfile) return
@@ -171,6 +230,64 @@ export function ProfilePage() {
           更新密码
         </button>
       </form>
+
+      <section id="tv-otp" className="glass-panel space-y-4">
+        <div className="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+          <div>
+            <h2 className="font-display text-lg font-semibold text-ink-600 flex items-center gap-2">
+              <Tv size={20} className="text-brand-500" />
+              Emby / 电视端临时登录码 (OTP)
+            </h2>
+            <p className="mt-1 text-sm text-ink-50">
+              适用于电视盒子、Apple TV、车机或朋友设备上的 Emby / Infuse / Jellyfin 客户端快速登录。无需使用遥控器输入长密码。
+            </p>
+          </div>
+          <button
+            type="button"
+            onClick={onGenerateOTP}
+            disabled={generatingOtp}
+            className="neon-button shrink-0"
+          >
+            {generatingOtp ? <Loader2 size={16} className="animate-spin" /> : <KeyRound size={16} />}
+            {otpCode && otpExpiresIn > 0 ? '重新生成' : '获取 6 位临时登录码'}
+          </button>
+        </div>
+
+        {otpCode && otpExpiresIn > 0 ? (
+          <div className="rounded-2xl border border-brand-200 bg-brand-50/40 p-4 space-y-3">
+            <div className="flex items-center justify-between text-xs text-ink-50">
+              <div>
+                <span>登录账号：</span>
+                <span className="font-mono font-bold text-ink-600">{user?.username}</span>
+              </div>
+              <div>
+                <span>有效时间剩余：</span>
+                <span className={`font-mono font-bold ${otpExpiresIn < 60 ? 'text-red-500' : 'text-brand-600'}`}>
+                  {Math.floor(otpExpiresIn / 60).toString().padStart(2, '0')}:{(otpExpiresIn % 60).toString().padStart(2, '0')}
+                </span>
+              </div>
+            </div>
+
+            <div className="flex items-center justify-between rounded-xl bg-white/90 p-4 border border-brand-100 shadow-sm">
+              <div className="font-mono text-3xl font-black tracking-widest text-brand-600 select-all">
+                {otpCode}
+              </div>
+              <button
+                type="button"
+                onClick={copyOTP}
+                className="flex items-center gap-1.5 rounded-lg bg-brand-100 px-3 py-1.5 text-xs font-semibold text-brand-700 hover:bg-brand-200 transition-colors"
+              >
+                {copiedOtp ? <Check size={14} /> : <Copy size={14} />}
+                {copiedOtp ? '已复制' : '复制密码'}
+              </button>
+            </div>
+
+            <p className="text-xs text-ink-50 leading-relaxed">
+              在客户端的 Emby / Jellyfin 登录界面输入用户名 <code className="font-bold text-ink-600">{user?.username}</code> 和上方 6 位数字临时密码即可完成登录。登录成功后临时密码立即作废（一次性使用），客户端将自动换取长期持久令牌。
+            </p>
+          </div>
+        ) : null}
+      </section>
     </div>
   )
 }

web/src/pages/StrmDialogs.tsx

@@ -509,6 +509,12 @@ const SETTING_DEFS: SettingDef[] = [
       { value: '3', label: '不带 path' },
     ],
   },
+  {
+    key: 'strm.keep_ext',
+    label: '保留视频扩展名（多版本）',
+    type: 'toggle',
+    hint: '关闭（默认）：同名不同扩展（如 竞女01.mkv / 竞女01.mp4）择优生成一条 name.strm；开启：分别生成 name.mkv.strm / name.mp4.strm，保留全部版本供播放切换',
+  },
   { key: 'strm.115_relay_key', label: '115 中继授权共享密钥', type: 'text', hint: 'QMediaSync/MQFamily 中继授权的共享 AES 密钥；不配置则中继授权不可用' },
   { key: 'strm.download_threads', label: '下载队列线程数', type: 'number', hint: '元数据下载并发数' },
   { key: 'strm.upload_threads', label: '上传队列线程数', type: 'number', hint: '元数据上传并发数' },
@@ -610,6 +616,7 @@ export function StrmSyncPathDialog({
     download_meta: existing?.download_meta ?? true,
     upload_meta: existing?.upload_meta ?? false,
     delete_dir: existing?.delete_dir ?? false,
+    keep_ext: existing?.keep_ext ?? false,
     cron: existing?.cron ?? '',
     enable_cron: existing?.enable_cron ?? false,
     sync_mode: existing?.sync_mode ?? 'incremental',
@@ -628,6 +635,19 @@ export function StrmSyncPathDialog({
   // 兼容两类历史数据：新版保存的 local_path 末段是目录名，旧版是目录 ID。
   const prevRemoteTailRef = useRef(existing ? initRemoteTail(existing) : '')
 
+  useEffect(() => {
+    if (existing) return
+    strmAPI
+      .getSettings()
+      .then((settings) => {
+        const keepExt = settings['strm.keep_ext']
+        if (keepExt === 'true' || keepExt === '1') {
+          setForm((f) => ({ ...f, keep_ext: true }))
+        }
+      })
+      .catch(() => undefined)
+  }, [existing])
+
   const set = <K extends keyof StrmSyncPathInput>(key: K, value: StrmSyncPathInput[K]) =>
     setForm((f) => ({ ...f, [key]: value }))
 
@@ -917,6 +937,11 @@ export function StrmSyncPathDialog({
               <ToggleRow label="下载元数据" checked={form.download_meta ?? true} onChange={(v) => set('download_meta', v)} />
               <ToggleRow label="上传元数据" checked={form.upload_meta ?? false} onChange={(v) => set('upload_meta', v)} />
               <ToggleRow label="清理空目录" checked={form.delete_dir ?? false} onChange={(v) => set('delete_dir', v)} />
+              <ToggleRow
+                label="保留视频扩展名（多版本）"
+                checked={form.keep_ext ?? false}
+                onChange={(v) => set('keep_ext', v)}
+              />
               <ToggleRow label="启用定时同步" checked={form.enable_cron ?? false} onChange={(v) => set('enable_cron', v)} />
               <ToggleRow label="启用该目录" checked={form.enabled ?? true} onChange={(v) => set('enabled', v)} />
             </div>

web/src/types/strm.ts

@@ -70,6 +70,7 @@ export interface StrmSyncPath {
   download_meta: boolean
   upload_meta: boolean
   delete_dir: boolean
+  keep_ext: boolean
   cron: string
   enable_cron: boolean
   sync_mode?: 'incremental' | 'full'
@@ -98,6 +99,7 @@ export interface StrmSyncPathInput {
   download_meta?: boolean
   upload_meta?: boolean
   delete_dir?: boolean
+  keep_ext?: boolean
   cron?: string
   enable_cron?: boolean
   sync_mode?: 'incremental' | 'full'
@@ -167,6 +169,7 @@ export interface StrmSettingsMap {
   'strm.download_meta': string
   'strm.upload_meta': string
   'strm.delete_dir': string
+  'strm.keep_ext': string
   'strm.download_threads': string
   'strm.upload_threads': string
   [key: string]: string

web/src/utils/mediaVersion.ts

@@ -0,0 +1,60 @@
+import type { Media } from '../types'
+
+/** 从路径 / strm URL 推断容器扩展名（mkv/mp4…）。 */
+export function mediaVersionContainer(media: Media): string {
+  const path = (media.path || '').replace(/\\/g, '/')
+  const base = path.split('/').pop() || ''
+  const ext = base.includes('.') ? base.slice(base.lastIndexOf('.')).toLowerCase() : ''
+  let name = ext ? base.slice(0, -ext.length) : base
+  if (ext === '.strm') {
+    const second = name.includes('.') ? name.slice(name.lastIndexOf('.')).toLowerCase() : ''
+    if (second && second !== '.strm') {
+      return second.replace(/^\./, '')
+    }
+    const strm = (media.strm_url || '').toLowerCase()
+    const marker = '/video.'
+    const idx = strm.lastIndexOf(marker)
+    if (idx >= 0) {
+      let rest = strm.slice(idx + marker.length)
+      const end = rest.search(/[?#&/]/)
+      if (end >= 0) rest = rest.slice(0, end)
+      rest = rest.replace(/^\./, '').trim()
+      if (rest) return rest
+    }
+    return 'strm'
+  }
+  return ext.replace(/^\./, '')
+}
+
+function formatSize(bytes: number): string {
+  if (!bytes || bytes < 1024) return bytes ? `${bytes} B` : ''
+  const units = ['KB', 'MB', 'GB', 'TB']
+  let value = bytes
+  let unit = -1
+  do {
+    value /= 1024
+    unit += 1
+  } while (value >= 1024 && unit < units.length - 1)
+  return `${value.toFixed(1)} ${units[unit]}`
+}
+
+/** 版本切换展示名：分辨率 · 容器 · 编码 · 体积，缺省回退文件名。 */
+export function mediaVersionLabel(media: Media): string {
+  const parts: string[] = []
+  if (media.height > 0) parts.push(`${media.height}p`)
+  else if (media.width > 0) parts.push(`${media.width}w`)
+  const container = mediaVersionContainer(media)
+  if (container && container !== 'strm') parts.push(container.toUpperCase())
+  if (media.video_codec?.trim()) parts.push(media.video_codec.trim().toUpperCase())
+  const size = formatSize(media.size_bytes)
+  if (size) parts.push(size)
+  if (parts.length > 0) return parts.join(' · ')
+  const base = (media.path || '').replace(/\\/g, '/').split('/').pop()
+  return base || media.title || media.id
+}
+
+export function mediaVersionsOf(media: Media | null | undefined): Media[] {
+  if (!media) return []
+  if (media.versions && media.versions.length > 1) return media.versions
+  return [media]
+}