fix: reject low-confidence automatic metadata matches

internal/service/bangumi.go

@@ -93,11 +93,12 @@ func (b *BangumiProvider) Search(ctx context.Context, query string) (*Match, err
 		title = r.Name
 	}
 	m := &Match{
-		BangumiID: r.ID,
-		Title:     title,
-		Overview:  r.Summary,
-		PosterURL: normalizeBangumiImageURL(r.Images.Large),
-		Rating:    r.Rating.Score,
+		BangumiID:    r.ID,
+		Title:        title,
+		OriginalName: r.Name,
+		Overview:     r.Summary,
+		PosterURL:    normalizeBangumiImageURL(r.Images.Large),
+		Rating:       r.Rating.Score,
 	}
 	if len(r.Air) >= 4 {
 		_, _ = fmt.Sscanf(r.Air[:4], "%d", &m.Year)

internal/service/metadata_match_trust.go

@@ -0,0 +1,98 @@
+package service
+
+import (
+	"regexp"
+	"strings"
+)
+
+var (
+	metadataTrustTokenRE           = regexp.MustCompile(`[\p{L}\p{N}]+`)
+	metadataTrustDanglingEpisodeRE = regexp.MustCompile(`(?i)^s\d{1,2}e$`)
+)
+
+func automaticMetadataTitleTrusted(query string, match *Match) bool {
+	queryKey := metadataTrustKey(query)
+	if queryKey == "" || match == nil {
+		return false
+	}
+	for _, title := range []string{match.Title, match.OriginalName} {
+		titleKey := metadataTrustKey(title)
+		if titleKey == "" {
+			continue
+		}
+		if queryKey == titleKey || metadataTrustTokenOverlap(queryKey, titleKey) {
+			return true
+		}
+	}
+	return false
+}
+
+func metadataTrustKey(value string) string {
+	value = strings.ToLower(strings.TrimSpace(value))
+	if value == "" {
+		return ""
+	}
+	value = bracketedTag.ReplaceAllString(value, " ")
+	value = yearPattern.ReplaceAllString(value, " ")
+	for _, re := range []*regexp.Regexp{patSEnE, patNxE, patEP, patCN, patSeasonOnly, patCNSeason} {
+		value = re.ReplaceAllString(value, " ")
+	}
+	tokens := metadataTrustTokenRE.FindAllString(value, -1)
+	out := make([]string, 0, len(tokens))
+	for _, token := range tokens {
+		token = strings.TrimSpace(token)
+		if token == "" || metadataTrustNoiseToken(token) {
+			continue
+		}
+		out = append(out, token)
+	}
+	return strings.Join(out, " ")
+}
+
+func metadataTrustNoiseToken(token string) bool {
+	if token == "x" || token == "×" {
+		return true
+	}
+	if _, ok := noiseTokenSet[token]; ok {
+		return true
+	}
+	if metadataTrustDanglingEpisodeRE.MatchString(token) {
+		return true
+	}
+	return false
+}
+
+func metadataTrustTokenOverlap(queryKey, titleKey string) bool {
+	queryTokens := metadataTrustSignificantTokens(queryKey)
+	titleTokens := metadataTrustSignificantTokens(titleKey)
+	if len(queryTokens) <= 1 || len(titleTokens) <= 1 {
+		return false
+	}
+	titleSet := make(map[string]struct{}, len(titleTokens))
+	for _, token := range titleTokens {
+		titleSet[token] = struct{}{}
+	}
+	overlap := 0
+	for _, token := range queryTokens {
+		if _, ok := titleSet[token]; ok {
+			overlap++
+		}
+	}
+	queryCoverage := float64(overlap) / float64(len(queryTokens))
+	titleCoverage := float64(overlap) / float64(len(titleTokens))
+	return queryCoverage >= 0.80 && titleCoverage >= 0.50
+}
+
+func metadataTrustSignificantTokens(key string) []string {
+	fields := strings.Fields(key)
+	out := make([]string, 0, len(fields))
+	for _, field := range fields {
+		switch field {
+		case "the", "a", "an", "of", "and":
+			continue
+		default:
+			out = append(out, field)
+		}
+	}
+	return out
+}

internal/service/organizer_directory_metadata.go

@@ -150,7 +150,7 @@ func organizeMetadataMatchTrusted(query string, sourceYear int, match *Match) bo
 			return false
 		}
 	}
-	return true
+	return automaticMetadataTitleTrusted(query, match)
 }
 
 func organizeMatchFromLocalMetadata(local *LocalMetadata) *Match {

internal/service/scraper_query.go

@@ -20,10 +20,10 @@ var noiseTokens = []string{
 	"hdrip", "bluray", "blu-ray", "webrip", "web-dl", "web",
 	"x264", "x265", "h264", "h265", "hevc", "avc", "10bit", "8bit", "hi10p", "hi10",
 	"hdr", "hdr10", "sdr", "dts", "ddp", "ddp5", "dd5", "dd2", "eac3", "truehd",
-	"dovi", "atmos", "aac", "ac3", "flac",
+	"dovi", "atmos", "aac", "ac3", "flac", "fps", "hlg", "dv",
 	"remux", "extended", "uncut", "remastered", "repack", "proper", "internal",
 	"limited", "imax", "directors-cut", "directors_cut",
-	"hkfree", "yify", "rarbg", "ettv", "fgt", "tgx", "ctrlhd", "ntb", "flux",
+	"hkfree", "yify", "rarbg", "ettv", "fgt", "tgx", "ctrlhd", "ntb", "flux", "qhstudio",
 
 	// 流媒体平台 / 字幕组 / 国家版本（动漫常见）
 	"netflix", "nf", "amzn", "hulu", "disney", "max", "hbo",

internal/service/scraper_query_test.go

@@ -31,6 +31,7 @@ func TestCleanQuery(t *testing.T) {
 		{"亏成首富从游戏开始 The Richest in Game - S01E11 - 4K.mp4", "亏成首富从游戏开始 the richest in game", 0},
 		{"紫川.2024.S02E24.第24集.2160p.WEB-DL.H.265-ColorTV.mkv", "紫川", 2024},
 		{"紫川 (2024) {tmdb-247590}", "紫川", 2024},
+		{"HNTV.Spring.Festival.Gala.FPS.HLG-QHStudio.S01E202-DD5.QHstudIo.6.4K.ts", "hntv spring festival gala", 0},
 	}
 	for _, tc := range cases {
 		t.Run(tc.in, func(t *testing.T) {
@@ -301,6 +302,36 @@ func TestOrganizeMetadataRejectsEpisodeOnlyQuery(t *testing.T) {
 	}
 }
 
+func TestOrganizeMetadataTrustsExactOriginalTitle(t *testing.T) {
+	match := &Match{Title: "镖人", OriginalName: "Blades of the Guardians", Year: 2023, TMDbID: 107463}
+	if !organizeMetadataMatchTrusted("blades of the guardians", 2023, match) {
+		t.Fatal("exact original title should be trusted")
+	}
+}
+
+func TestOrganizeMetadataTrustsCleanedBroadcastReleaseQuery(t *testing.T) {
+	match := &Match{Title: "湖南卫视春节联欢晚会", OriginalName: "HNTV Spring Festival Gala", Year: 2026, TMDbID: 123456}
+	query := "hntv spring festival gala fps hlg qhstudio s01e qhstudio"
+	if !organizeMetadataMatchTrusted(query, 2026, match) {
+		t.Fatal("release noise should not block an otherwise matching title")
+	}
+}
+
+func TestOrganizeMetadataRejectsLooseSingleTokenQuery(t *testing.T) {
+	match := &Match{Title: "步步惊心泰版", OriginalName: "Scarlet Heart Thailand", Year: 2025, TMDbID: 252886}
+	if organizeMetadataMatchTrusted("thailand", 0, match) {
+		t.Fatal("single generic token must not trust a broader title")
+	}
+}
+
+func TestOrganizeMetadataRejectsDirtyUnrelatedQuery(t *testing.T) {
+	match := &Match{Title: "春节联欢晚会", OriginalName: "Spring Festival Gala", Year: 2026, TMDbID: 284725}
+	query := "hntv spring festival gala fps hlg qhstudio s01e qhstudio"
+	if organizeMetadataMatchTrusted(query, 2026, match) {
+		t.Fatal("dirty query with a missing broadcaster token must not trust a partial title")
+	}
+}
+
 func TestSeriesTitleFromMediaPathIgnoresEpisodeOnlyFolder(t *testing.T) {
 	got := seriesTitleFromMediaPath(`F:\media\电视剧\欧美剧\第 11 集 (2026)\Season 6\第 11 集 - S06E11.mkv`)
 	if got != "" {