diff --git a/docs/changelog/index.md b/docs/changelog/index.md
index 9dc94e9d..7a83c8af 100644
--- a/docs/changelog/index.md
+++ b/docs/changelog/index.md
@@ -23,7 +23,7 @@ sidebar: false
 
 ### 新增
 
-- Pages 项目新增持久部署源，可配置 Remote URL 或公开 GitHub Release，并支持手动检查、同步发布、来源状态查看与同一 Release 资源替换确认；部署历史会保留安全的来源快照。
+- Pages 项目新增持久部署源，可配置 Remote URL 或公开 GitHub Release，并支持手动检查、同步发布、来源状态查看与同一 Release 资源替换确认；GitHub latest 来源可按设定间隔自动检查并发布更新，部署历史会保留安全的来源快照。
 - WAF 规则编排新增「UA 检查」节点：可要求携带 User-Agent、按浏览器/操作系统白名单（且/或）匹配，并优先屏蔽常见爬虫、非正常 UA（不含爬虫）与自定义正则 UA。
 
 ### 改进
@@ -33,7 +33,7 @@ sidebar: false
 
 ### 修复
 
-- 修复 Pages 部署包路径校验、归档展开限额、历史版本裁剪、代理路由绑定与 Agent 下载过程中的安全和一致性问题；大包改为流式处理，部署入口、旧版目录切换、保留版本及上传记录在并发场景下更加可靠。
+- 修复 Pages 部署包路径校验、归档展开限额、历史版本裁剪、代理路由绑定与 Agent 下载过程中的安全和一致性问题；大包改为流式处理，部署入口、旧版目录切换、保留版本及上传记录在并发场景下更加可靠，异常中断遗留的部署包也会被安全补偿清理。
 
 ## [v3.4.0] - 2026-07-19
 
diff --git a/internal/apps/openflare/pages/errs.go b/internal/apps/openflare/pages/errs.go
index 64fc9a25..0d2493ef 100644
--- a/internal/apps/openflare/pages/errs.go
+++ b/internal/apps/openflare/pages/errs.go
@@ -61,6 +61,7 @@ const (
 	errPagesSourceActionInvalid       = "pages 部署源任务参数无效"
 	errPagesSourceActionStale         = "pages 部署源配置已变化，本次任务已跳过"
 	errPagesSourceLeaseLost           = "pages 部署源任务执行权已失效"
+	errPagesSourceLeaseExpired        = "上次 pages 部署源任务租约已过期"
 	errPagesSourceSyncFailed          = "pages 部署源同步失败"
 	errPagesSourceTaskDispatchFailed  = "pages 部署源任务入队失败"
 	errPagesSourceInternal            = "pages 部署源操作失败，请稍后重试"
diff --git a/internal/apps/openflare/pages/github_source.go b/internal/apps/openflare/pages/github_source.go
index d2e8fa66..12db7291 100644
--- a/internal/apps/openflare/pages/github_source.go
+++ b/internal/apps/openflare/pages/github_source.go
@@ -44,6 +44,7 @@ type githubSourceConfig struct {
 	Selector       string
 	Tag            string
 	AssetName      string
+	AutoUpdate     bool
 	CheckInterval  int
 	SourceIdentity string
 }
@@ -56,9 +57,6 @@ func validateGitHubSourceInput(input SourceUpdateInput) error {
 		strings.TrimSpace(input.RemoteNetworkPolicy) != "" {
 		return errors.New(errPagesSourceGitHubFields)
 	}
-	if input.AutoUpdateEnabled {
-		return errors.New(errPagesSourceAutoNotAvailable)
-	}
 	if _, err := normalizeGitHubRepositoryURL(input.RepositoryURL); err != nil {
 		return err
 	}
@@ -83,7 +81,7 @@ func validateGitHubSourceInput(input SourceUpdateInput) error {
 			return errors.New(errPagesSourceCheckInterval)
 		}
 	case githubReleaseSelectorTag:
-		if !validGitHubReleaseTagConfig(input.ReleaseTag) || input.CheckIntervalMinutes != 0 {
+		if !validGitHubReleaseTagConfig(input.ReleaseTag) || input.AutoUpdateEnabled || input.CheckIntervalMinutes != 0 {
 			return errors.New(errPagesSourceSelectorInvalid)
 		}
 	default:
@@ -110,11 +108,17 @@ func buildGitHubSourceConfig(input SourceUpdateInput) (githubSourceConfig, error
 	if selector == githubReleaseSelectorLatest && interval == 0 {
 		interval = defaultCheckInterval
 	}
+	autoUpdate := input.AutoUpdateEnabled
+	if selector == githubReleaseSelectorTag {
+		autoUpdate = false
+		interval = 0
+	}
 	return githubSourceConfig{
 		Repository:     repository,
 		Selector:       selector,
 		Tag:            tag,
 		AssetName:      assetName,
+		AutoUpdate:     autoUpdate,
 		CheckInterval:  interval,
 		SourceIdentity: buildGitHubSourceIdentity(repository, selector, tag, assetName),
 	}, nil
@@ -251,7 +255,7 @@ func createGitHubSourceTx(tx *gorm.DB, projectID uint, config githubSourceConfig
 		ReleaseSelector:      config.Selector,
 		ReleaseTag:           config.Tag,
 		AssetName:            config.AssetName,
-		AutoUpdateEnabled:    false,
+		AutoUpdateEnabled:    config.AutoUpdate,
 		CheckIntervalMinutes: config.CheckInterval,
 		ConfigVersion:        1,
 		SourceIdentity:       config.SourceIdentity,
@@ -276,7 +280,7 @@ func githubSourceUpdates(config githubSourceConfig, version int) map[string]any
 		"release_selector":            config.Selector,
 		"release_tag":                 config.Tag,
 		"asset_name":                  config.AssetName,
-		sourceColumnAutoUpdateEnabled: false,
+		sourceColumnAutoUpdateEnabled: config.AutoUpdate,
 		"check_interval_minutes":      config.CheckInterval,
 		sourceColumnConfigVersion:     version,
 		"source_identity":             config.SourceIdentity,
@@ -287,7 +291,7 @@ func githubSourceConfigChanged(existing *model.PagesProjectSource, config github
 	return existing.SourceType != PagesSourceTypeGitHubRelease || existing.RemoteURL != "" ||
 		existing.RemoteNetworkPolicy != "" || existing.GitHubRepository != config.Repository ||
 		existing.ReleaseSelector != config.Selector || existing.ReleaseTag != config.Tag ||
-		existing.AssetName != config.AssetName || existing.AutoUpdateEnabled ||
+		existing.AssetName != config.AssetName || existing.AutoUpdateEnabled != config.AutoUpdate ||
 		existing.CheckIntervalMinutes != config.CheckInterval
 }
 
diff --git a/internal/apps/openflare/pages/github_source_action.go b/internal/apps/openflare/pages/github_source_action.go
index d4fc1e89..6aaea778 100644
--- a/internal/apps/openflare/pages/github_source_action.go
+++ b/internal/apps/openflare/pages/github_source_action.go
@@ -28,9 +28,10 @@ const githubSourceDetailProvider = "github"
 var githubDigestPattern = regexp.MustCompile(`^sha256:[0-9a-f]{64}$`)
 
 type githubSourceProviderDomainError struct {
-	message   string
-	permanent bool
-	retryAt   *time.Time
+	message    string
+	permanent  bool
+	retryAt    *time.Time
+	statusCode int
 }
 
 func (domainError *githubSourceProviderDomainError) Error() string {
@@ -56,9 +57,12 @@ type githubSourceTarget struct {
 }
 
 type githubCheckTaskResult struct {
-	Message string
-	Detail  string
-	Stale   bool
+	Message  string
+	Detail   string
+	Revision string
+	Status   string
+	RetryAt  *time.Time
+	Stale    bool
 }
 
 type preparedGitHubSource struct {
@@ -99,13 +103,21 @@ func checkGitHubSource(
 		return nil, domainErr
 	}
 	if result.NotModified {
-		if err := finishGitHubCheckNotModified(ctx, snapshot, result); err != nil {
+		revision, status, err := finishGitHubCheckNotModified(ctx, snapshot, result)
+		if err != nil {
 			if errors.Is(err, errSourceFinalFence) {
 				return &githubCheckTaskResult{Message: errPagesSourceActionStale, Stale: true}, nil
 			}
 			return nil, err
 		}
-		return &githubCheckTaskResult{Message: "GitHub Release 检查完成，内容未变化"}, nil
+		detail, _ := json.Marshal(map[string]string{"revision": revision, pagesDeploymentColumnStatus: status})
+		return &githubCheckTaskResult{
+			Message:  "GitHub Release 检查完成，内容未变化",
+			Detail:   string(detail),
+			Revision: revision,
+			Status:   status,
+			RetryAt:  result.RetryAt,
+		}, nil
 	}
 	target, err := buildGitHubSourceTarget(result.Release, result.Asset, result.RetryAt)
 	if err != nil {
@@ -136,7 +148,10 @@ func checkGitHubSource(
 	case pagesSourceStatusAttention:
 		message = "检测到同一 Release 的资源被替换，需要确认"
 	}
-	return &githubCheckTaskResult{Message: message, Detail: string(detail)}, nil
+	return &githubCheckTaskResult{
+		Message: message, Detail: string(detail), Revision: target.Revision,
+		Status: status, RetryAt: result.RetryAt,
+	}, nil
 }
 
 func buildGitHubSourceTarget(
@@ -183,17 +198,22 @@ func finishGitHubCheckNotModified(
 	ctx context.Context,
 	snapshot *sourceExecutionSnapshot,
 	result githubrelease.ResolveResult,
-) error {
-	return db.DB(ctx).Transaction(func(tx *gorm.DB) error {
+) (string, string, error) {
+	var revision string
+	var status string
+	err := db.DB(ctx).Transaction(func(tx *gorm.DB) error {
 		runtime, now, err := lockOwnedSourceRuntime(tx, snapshot)
 		if err != nil {
 			return err
 		}
+		revision = runtime.LastSeenRevision
+		status = normalizedSourceRuntimeStatus(runtime)
 		updates := githubCheckTerminalUpdates(snapshot, now, result.RetryAt)
 		updates["etag"] = result.ETag
-		updates[sourceRuntimeColumnSyncStatus] = normalizedSourceRuntimeStatus(runtime)
+		updates[sourceRuntimeColumnSyncStatus] = status
 		return tx.Model(runtime).Updates(updates).Error
 	})
+	return revision, status, err
 }
 
 func finishGitHubCheckTarget(
@@ -230,7 +250,7 @@ func githubCheckTerminalUpdates(
 		sourceRuntimeColumnLeaseToken:     "",
 		sourceRuntimeColumnLeaseExpiresAt: nil,
 	}
-	updates["next_check_at"] = nextCheckAfterGitHubResponse(snapshot, now, retryAt)
+	updates[sourceRuntimeColumnNextCheckAt] = nextCheckAfterGitHubResponse(snapshot, now, retryAt)
 	return updates
 }
 
@@ -244,7 +264,7 @@ func nextCheckAfterGitHubResponse(
 	}
 	next := nextGitHubCheckAt(now, snapshot.SourceID, snapshot.CheckIntervalMinutes)
 	if retryAt != nil && retryAt.After(next) {
-		next = retryAt.UTC()
+		next = retryAt.In(now.Location())
 	}
 	return &next
 }
@@ -275,7 +295,7 @@ func failGitHubCheckLease(
 	now := time.Now()
 	next := now.Add(initialCheckRetryDelay)
 	if retryAt.After(next) {
-		next = retryAt.UTC()
+		next = retryAt.In(now.Location())
 	}
 	updates := map[string]any{
 		sourceRuntimeColumnSyncStatus:     pagesSourceStatusFailed,
@@ -285,9 +305,9 @@ func failGitHubCheckLease(
 		sourceRuntimeColumnLeaseExpiresAt: nil,
 	}
 	if snapshot.ReleaseSelector == githubReleaseSelectorLatest {
-		updates["next_check_at"] = &next
+		updates[sourceRuntimeColumnNextCheckAt] = &next
 	} else {
-		updates["next_check_at"] = nil
+		updates[sourceRuntimeColumnNextCheckAt] = nil
 	}
 	result := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
 		Where("source_id = ? AND lease_token = ? AND lease_expires_at > ?", snapshot.SourceID, snapshot.LeaseToken, now).
@@ -332,16 +352,20 @@ func preflightGitHubSyncConfirmation(ctx context.Context, sourceID uint, confirm
 	return nil
 }
 
-func syncGitHubSource(
+func syncGitHubSourceWithTrigger(
 	ctx context.Context,
 	snapshot *sourceExecutionSnapshot,
 	actor string,
 	targetRevision string,
 	confirmedRevision string,
+	triggerType string,
 ) (outcome *sourceSyncOutcome, resultErr error) {
 	if snapshot == nil || snapshot.SourceType != PagesSourceTypeGitHubRelease || !validPagesSourceActor(actor) {
 		return nil, errors.New(errPagesSourceActionInvalid)
 	}
+	if !validSourceDeploymentTrigger(triggerType) {
+		return nil, errors.New(errPagesSourceActionInvalid)
+	}
 	defer func() {
 		resultErr = finalizeGitHubSyncFailure(ctx, snapshot, resultErr)
 	}()
@@ -383,7 +407,7 @@ func syncGitHubSource(
 	if !renewed {
 		return &sourceSyncOutcome{Stale: true}, nil
 	}
-	return activatePreparedGitHubSource(ctx, snapshot, actor, prepared)
+	return activatePreparedGitHubSource(ctx, snapshot, actor, triggerType, prepared)
 }
 
 func finalizeGitHubSyncFailure(
@@ -429,12 +453,13 @@ func activatePreparedGitHubSource(
 	ctx context.Context,
 	snapshot *sourceExecutionSnapshot,
 	actor string,
+	triggerType string,
 	prepared *preparedGitHubSource,
 ) (*sourceSyncOutcome, error) {
 	task.AppendLog(ctx, "[activate] 正在原子切换 GitHub Release 部署")
-	deployment, reused, referenced, err := commitSourceDeployment(
+	deployment, reused, referenced, err := commitSourceDeploymentWithTrigger(
 		ctx, snapshot, prepared.target.Revision, prepared.download.SHA256,
-		prepared.target.Detail, prepared.target.DetailJSON, actor, prepared.manifest,
+		prepared.target.Detail, prepared.target.DetailJSON, actor, triggerType, prepared.manifest,
 		prepared.ingestState.Result, prepared.ingestState.HasIngest, prepared.target.RetryAt,
 	)
 	prepared.ingestState.Referenced = referenced
@@ -634,7 +659,7 @@ func releaseGitHubSyncWithoutActivation(
 	if expedite && snapshot.ReleaseSelector == githubReleaseSelectorLatest {
 		next := now.Add(initialCheckRetryDelay)
 		if retryAt != nil && retryAt.After(next) {
-			next = retryAt.UTC()
+			next = retryAt.In(now.Location())
 		}
 		nextCheckAt = &next
 	}
@@ -644,7 +669,7 @@ func releaseGitHubSyncWithoutActivation(
 		sourceRuntimeColumnSyncStatus:     status,
 		sourceRuntimeColumnLastError:      lastError,
 		sourceRuntimeColumnLastCheckedAt:  &now,
-		"next_check_at":                   nextCheckAt,
+		sourceRuntimeColumnNextCheckAt:    nextCheckAt,
 		sourceRuntimeColumnLeaseToken:     "",
 		sourceRuntimeColumnLeaseExpiresAt: nil,
 	}
@@ -689,32 +714,37 @@ func safeGitHubSourceError(err error) string {
 
 func githubSourceDomainError(err error) error {
 	message := errPagesSourceSyncFailed
+	statusCode := 0
+	var providerError *githubrelease.Error
+	if errors.As(err, &providerError) {
+		statusCode = providerError.StatusCode
+	}
 	retryAt, hasRetryAt := githubrelease.RetryAt(err)
 	var retryDeadline *time.Time
 	if hasRetryAt {
 		retryDeadline = &retryAt
 	}
 	if err == nil {
-		return &githubSourceProviderDomainError{message: message, permanent: false}
+		return &githubSourceProviderDomainError{message: message, permanent: false, statusCode: statusCode}
 	}
 	if githubrelease.IsDigestError(err) {
 		message = errPagesSourceDigestMismatch
-		return &githubSourceProviderDomainError{message: message, permanent: true}
+		return &githubSourceProviderDomainError{message: message, permanent: true, statusCode: statusCode}
 	}
 	if githubrelease.IsNotFound(err) {
 		message = errPagesSourceReleaseNotFound
-		return &githubSourceProviderDomainError{message: message, permanent: true}
+		return &githubSourceProviderDomainError{message: message, permanent: true, statusCode: statusCode}
 	}
 	if errors.Is(err, githubrelease.ErrAssetTooLarge) {
 		message = errPagesPackageURLTooLarge
-		return &githubSourceProviderDomainError{message: message, permanent: true}
+		return &githubSourceProviderDomainError{message: message, permanent: true, statusCode: statusCode}
 	}
 	if errors.Is(err, githubrelease.ErrEmptyAsset) {
 		message = errPagesPackageEmpty
-		return &githubSourceProviderDomainError{message: message, permanent: true}
+		return &githubSourceProviderDomainError{message: message, permanent: true, statusCode: statusCode}
 	}
 	return &githubSourceProviderDomainError{
-		message: message, permanent: !githubrelease.IsRetryable(err), retryAt: retryDeadline,
+		message: message, permanent: !githubrelease.IsRetryable(err), retryAt: retryDeadline, statusCode: statusCode,
 	}
 }
 
diff --git a/internal/apps/openflare/pages/github_source_test.go b/internal/apps/openflare/pages/github_source_test.go
index 6d823319..61b5e340 100644
--- a/internal/apps/openflare/pages/github_source_test.go
+++ b/internal/apps/openflare/pages/github_source_test.go
@@ -190,7 +190,7 @@ func TestGitHubSourceSaveSurvivesInitialCheckDispatchFailure(t *testing.T) {
 	}
 }
 
-func TestGitHubSourceRejectsUnsafeOrPhaseThreeFields(t *testing.T) {
+func TestGitHubSourceRejectsUnsafeOrModeIncompatibleFields(t *testing.T) {
 	tests := []SourceUpdateInput{
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "http://github.com/a/b"},
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a%20b/repo"},
@@ -202,8 +202,8 @@ func TestGitHubSourceRejectsUnsafeOrPhaseThreeFields(t *testing.T) {
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", AssetName: "dist\n.zip"},
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", AssetName: "dist\u202e.zip"},
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", AssetName: "dir/dist.zip"},
-		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", AutoUpdateEnabled: true},
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", ReleaseSelector: "tag", ReleaseTag: "v1", CheckIntervalMinutes: 60},
+		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", ReleaseSelector: "tag", ReleaseTag: "v1", AutoUpdateEnabled: true},
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", ReleaseSelector: "tag", ReleaseTag: " v1"},
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", ReleaseSelector: "tag", ReleaseTag: "v1\n"},
 		{SourceType: PagesSourceTypeGitHubRelease, RepositoryURL: "https://github.com/a/b", ReleaseSelector: "tag", ReleaseTag: "v1\u2028draft"},
@@ -779,6 +779,7 @@ func TestSourceActionPayloadSeparatesSystemTargetAndUserConfirmation(t *testing.
 	revision := strings.Repeat("a", 64)
 	invalid := []SourceActionPayload{
 		{SourceID: 1, ConfigVersion: 1, Action: sourceActionSync, Actor: "user:1", TargetRevision: revision},
+		{SourceID: 1, ConfigVersion: 1, Action: sourceActionSync, Actor: pagesSourceCreatedBySystem, TriggerType: pagesSourceTriggerManualSync},
 		{SourceID: 1, ConfigVersion: 1, Action: sourceActionSync, Actor: pagesSourceCreatedBySystem, ConfirmedRevision: revision},
 		{SourceID: 1, ConfigVersion: 1, Action: sourceActionSync, Actor: pagesSourceCreatedBySystem, TargetRevision: revision, ConfirmedRevision: revision},
 	}
@@ -789,8 +790,8 @@ func TestSourceActionPayloadSeparatesSystemTargetAndUserConfirmation(t *testing.
 		}
 	}
 	valid := []SourceActionPayload{
-		{SourceID: 1, ConfigVersion: 1, Action: sourceActionSync, Actor: pagesSourceCreatedBySystem, TargetRevision: revision},
-		{SourceID: 1, ConfigVersion: 1, Action: sourceActionSync, Actor: "user:1", ConfirmedRevision: revision},
+		{SourceID: 1, ConfigVersion: 1, Action: sourceActionSync, Actor: pagesSourceCreatedBySystem, TriggerType: pagesSourceTriggerScheduledAutoUpdate, TargetRevision: revision},
+		{SourceID: 1, ConfigVersion: 1, Action: sourceActionSync, Actor: "user:1", TriggerType: pagesSourceTriggerManualSync, ConfirmedRevision: revision},
 	}
 	for _, payload := range valid {
 		raw, _ := json.Marshal(payload)
diff --git a/internal/apps/openflare/pages/source_manual_test_helpers_test.go b/internal/apps/openflare/pages/source_manual_test_helpers_test.go
new file mode 100644
index 00000000..d54fc991
--- /dev/null
+++ b/internal/apps/openflare/pages/source_manual_test_helpers_test.go
@@ -0,0 +1,51 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package pages
+
+import (
+	"context"
+	"time"
+
+	"github.com/Rain-kl/Wavelet/internal/apps/upload"
+	"github.com/Rain-kl/Wavelet/internal/model"
+)
+
+func syncRemoteSource(
+	ctx context.Context,
+	snapshot *sourceExecutionSnapshot,
+	actor string,
+) (*sourceSyncOutcome, error) {
+	return syncRemoteSourceWithTrigger(ctx, snapshot, actor, pagesSourceTriggerManualSync)
+}
+
+func syncGitHubSource(
+	ctx context.Context,
+	snapshot *sourceExecutionSnapshot,
+	actor string,
+	targetRevision string,
+	confirmedRevision string,
+) (*sourceSyncOutcome, error) {
+	return syncGitHubSourceWithTrigger(
+		ctx, snapshot, actor, targetRevision, confirmedRevision, pagesSourceTriggerManualSync,
+	)
+}
+
+func commitSourceDeployment(
+	ctx context.Context,
+	snapshot *sourceExecutionSnapshot,
+	revision string,
+	packageChecksum string,
+	detail sourceDetail,
+	detailJSON string,
+	actor string,
+	manifest *deploymentManifest,
+	ingestResult upload.IngestResult,
+	hasIngest bool,
+	nextCheckNotBefore *time.Time,
+) (*model.PagesDeployment, bool, bool, error) {
+	return commitSourceDeploymentWithTrigger(
+		ctx, snapshot, revision, packageChecksum, detail, detailJSON, actor,
+		pagesSourceTriggerManualSync, manifest, ingestResult, hasIngest, nextCheckNotBefore,
+	)
+}
diff --git a/internal/apps/openflare/pages/source_runtime.go b/internal/apps/openflare/pages/source_runtime.go
index 98801661..fdefb536 100644
--- a/internal/apps/openflare/pages/source_runtime.go
+++ b/internal/apps/openflare/pages/source_runtime.go
@@ -29,6 +29,7 @@ const (
 	sourceRuntimeColumnSyncStatus     = "sync_status"
 	sourceRuntimeColumnLastError      = "last_error"
 	sourceRuntimeColumnLastCheckedAt  = "last_checked_at"
+	sourceRuntimeColumnNextCheckAt    = "next_check_at"
 	sourceRuntimeColumnLeaseToken     = "lease_token"
 	sourceRuntimeColumnLeaseExpiresAt = "lease_expires_at"
 	pagesDeploymentColumnStatus       = "status"
@@ -58,6 +59,7 @@ type sourceExecutionSnapshot struct {
 	ReleaseSelector      string
 	ReleaseTag           string
 	AssetName            string
+	AutoUpdateEnabled    bool
 	CheckIntervalMinutes int
 	ETag                 string
 	LastSeenRevision     string
@@ -179,6 +181,7 @@ func loadSourceExecutionSnapshot(
 			ReleaseSelector:      source.ReleaseSelector,
 			ReleaseTag:           source.ReleaseTag,
 			AssetName:            source.AssetName,
+			AutoUpdateEnabled:    source.AutoUpdateEnabled,
 			CheckIntervalMinutes: source.CheckIntervalMinutes,
 			ETag:                 runtime.ETag,
 			LastSeenRevision:     runtime.LastSeenRevision,
@@ -300,6 +303,41 @@ func sourceLeaseIsBusy(ctx context.Context, sourceID uint) (bool, error) {
 	return runtime.LeaseExpiresAt != nil && runtime.LeaseExpiresAt.After(time.Now()), nil
 }
 
+// recoverExpiredSourceLease clears one exact expired lease owner. Matching the
+// token, observed expiry and status prevents a scanner from overwriting a
+// worker that renewed or was replaced after the candidate query.
+func recoverExpiredSourceLease(
+	ctx context.Context,
+	sourceID uint,
+	token string,
+	expiresAt time.Time,
+	status string,
+	now time.Time,
+	nextCheckAt *time.Time,
+) (bool, error) {
+	if sourceID == 0 || token == "" ||
+		(status != pagesSourceStatusChecking && status != pagesSourceStatusSyncing) {
+		return false, nil
+	}
+	updates := map[string]any{
+		sourceRuntimeColumnSyncStatus:     pagesSourceStatusFailed,
+		sourceRuntimeColumnLastError:      errPagesSourceLeaseExpired,
+		sourceRuntimeColumnLeaseToken:     "",
+		sourceRuntimeColumnLeaseExpiresAt: nil,
+		sourceRuntimeColumnNextCheckAt:    nextCheckAt,
+	}
+	result := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+		Where("source_id = ?", sourceID).
+		Where("lease_token = ?", token).
+		Where("lease_expires_at = ? AND lease_expires_at <= ?", expiresAt, now).
+		Where("sync_status = ?", status).
+		Updates(updates)
+	if result.Error != nil {
+		return false, result.Error
+	}
+	return result.RowsAffected == 1, nil
+}
+
 // fenceAndNormalizeRuntime invalidates in-flight work while preserving safe
 // seen/applied cursors. The caller must already hold the source row lock.
 func fenceAndNormalizeRuntime(tx *gorm.DB, sourceID uint) error {
diff --git a/internal/apps/openflare/pages/source_scanner.go b/internal/apps/openflare/pages/source_scanner.go
new file mode 100644
index 00000000..29fc0dc8
--- /dev/null
+++ b/internal/apps/openflare/pages/source_scanner.go
@@ -0,0 +1,478 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package pages
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/Rain-kl/Wavelet/internal/db"
+	"github.com/Rain-kl/Wavelet/internal/model"
+	"github.com/Rain-kl/Wavelet/internal/task"
+	"github.com/Rain-kl/Wavelet/pkg/logger"
+	"gorm.io/gorm"
+)
+
+const (
+	// PagesSourceScanTask is the private Asynq task type for the periodic scanner.
+	PagesSourceScanTask = "openflare:pages_source_scan"
+	// TaskTypePagesSourceScan is the internal task meta type seeded in w_schedules.
+	TaskTypePagesSourceScan = "of_pages_source_scan"
+
+	pagesSourceScanBatchSize = 20
+)
+
+// PagesSourceScanMeta is available to the scheduler registry but hidden from
+// generic Admin task dispatch and schedule mutation APIs.
+var PagesSourceScanMeta = task.TaskMeta{
+	Type:         TaskTypePagesSourceScan,
+	AsynqTask:    PagesSourceScanTask,
+	Name:         "OpenFlare Pages 部署源扫描",
+	Description:  "补偿孤儿部署包、恢复过期执行权并串行检查到期的 GitHub latest 部署源",
+	SupportsTime: false,
+	MaxRetry:     0,
+	Queue:        task.QueueDefault,
+	Retryable:    false,
+	InternalOnly: true,
+}
+
+type pagesSourceScanPayload struct{}
+
+type pagesSourceScanSummary struct {
+	ExpiredCandidates int                          `json:"expired_candidates"`
+	RecoveredLeases   int                          `json:"recovered_leases"`
+	OrphanCleanup     PagesOrphanCleanupSummary    `json:"orphan_cleanup"`
+	DueSources        int                          `json:"due_sources"`
+	SelectedSources   int                          `json:"selected_sources"`
+	CheckedSources    int                          `json:"checked_sources"`
+	UpdatesFound      int                          `json:"updates_found"`
+	AttentionSources  int                          `json:"attention_sources"`
+	DispatchedSyncs   int                          `json:"dispatched_syncs"`
+	FailedDispatches  int                          `json:"failed_dispatches"`
+	BusySources       int                          `json:"busy_sources"`
+	StaleSources      int                          `json:"stale_sources"`
+	FailedSources     int                          `json:"failed_sources"`
+	Backlog           int                          `json:"backlog"`
+	ProviderBackoffs  []pagesSourceProviderBackoff `json:"provider_backoffs,omitempty"`
+}
+
+type pagesSourceProviderBackoff struct {
+	SourceID   uint   `json:"source_id"`
+	StatusCode int    `json:"status_code"`
+	RetryAt    string `json:"retry_at"`
+}
+
+type expiredSourceLeaseCandidate struct {
+	SourceID        uint
+	LeaseToken      string
+	LeaseExpiresAt  time.Time
+	SyncStatus      string
+	SourceType      string
+	ReleaseSelector string
+}
+
+type dueGitHubSourceCandidate struct {
+	SourceID      uint
+	ConfigVersion int
+}
+
+var (
+	pagesSourceScanNow          = time.Now
+	reconcilePagesSourceOrphans = ReconcilePagesOrphanUploads
+	dispatchPagesSourceAutoSync = func(
+		ctx context.Context,
+		source model.PagesProjectSource,
+		targetRevision string,
+	) (*SourceActionReceipt, error) {
+		return dispatchSourceActionSnapshotWithTrigger(
+			ctx,
+			source,
+			sourceActionSync,
+			pagesSourceCreatedBySystem,
+			pagesSourceTriggerScheduledAutoUpdate,
+			targetRevision,
+			"",
+			"system",
+		)
+	}
+)
+
+// SourceScanHandler serializes provider checks inside one scheduled task. A
+// source-level lease still permits overlapping scanner executions safely.
+type SourceScanHandler struct{}
+
+// ValidatePayload accepts only an empty object; the scanner has no user input.
+func (handler *SourceScanHandler) ValidatePayload(payload []byte) ([]byte, error) {
+	if len(bytes.TrimSpace(payload)) == 0 {
+		payload = []byte("{}")
+	}
+	var input pagesSourceScanPayload
+	decoder := json.NewDecoder(bytes.NewReader(payload))
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(&input); err != nil {
+		return nil, errors.New(errPagesSourceActionInvalid)
+	}
+	if err := ensureJSONEOF(decoder); err != nil {
+		return nil, errors.New(errPagesSourceActionInvalid)
+	}
+	return []byte("{}"), nil
+}
+
+// Execute recovers expired leases and checks at most 20 due latest sources in
+// stable order. Provider and dispatch failures are isolated per source.
+func (handler *SourceScanHandler) Execute(ctx context.Context, payload []byte) (*task.TaskResult, error) {
+	if _, err := handler.ValidatePayload(payload); err != nil {
+		return nil, task.PermanentError(errPagesSourceActionInvalid)
+	}
+
+	now := pagesSourceScanNow()
+	summary := pagesSourceScanSummary{}
+	if err := recoverExpiredPagesSourceLeases(ctx, now, &summary); err != nil {
+		return nil, err
+	}
+	orphanSummary, err := reconcilePagesSourceOrphans(ctx, now)
+	if err != nil {
+		return nil, err
+	}
+	summary.OrphanCleanup = orphanSummary
+	task.AppendLog(
+		ctx,
+		"[cleanup] orphan 候选=%d，已补偿=%d，仍被引用=%d，lease busy=%d，非法 marker=%d，跳过=%d，失败=%d",
+		orphanSummary.Candidates,
+		orphanSummary.Reconciled,
+		orphanSummary.Referenced,
+		orphanSummary.LeaseBusy,
+		orphanSummary.InvalidMarker,
+		orphanSummary.Skipped,
+		orphanSummary.Failed,
+	)
+	if err := scanDueGitHubSources(ctx, now, &summary); err != nil {
+		return nil, err
+	}
+
+	detail, err := json.Marshal(summary)
+	if err != nil {
+		return nil, err
+	}
+	message := fmt.Sprintf(
+		"Pages 部署源扫描完成：恢复 %d 个租约，补偿 %d 个孤儿记录，检查 %d 个来源，投递 %d 个自动更新，积压 %d 个",
+		summary.RecoveredLeases,
+		summary.OrphanCleanup.Reconciled,
+		summary.CheckedSources,
+		summary.DispatchedSyncs,
+		summary.Backlog,
+	)
+	return &task.TaskResult{Message: message, Detail: string(detail)}, nil
+}
+
+func recoverExpiredPagesSourceLeases(
+	ctx context.Context,
+	now time.Time,
+	summary *pagesSourceScanSummary,
+) error {
+	var candidates []expiredSourceLeaseCandidate
+	err := db.DB(ctx).
+		Table("of_pages_project_source_runtime AS runtime").
+		Select(`runtime.source_id, runtime.lease_token, runtime.lease_expires_at,
+			runtime.sync_status, source.source_type, source.release_selector`).
+		Joins("JOIN of_pages_project_sources AS source ON source.id = runtime.source_id").
+		Where("runtime.lease_token <> ''").
+		Where("runtime.lease_expires_at IS NOT NULL AND runtime.lease_expires_at <= ?", now).
+		Where("runtime.sync_status IN ?", []string{pagesSourceStatusChecking, pagesSourceStatusSyncing}).
+		Order("runtime.source_id ASC").
+		Scan(&candidates).Error
+	if err != nil {
+		return err
+	}
+	summary.ExpiredCandidates = len(candidates)
+	for _, candidate := range candidates {
+		var nextCheckAt *time.Time
+		if candidate.SourceType == PagesSourceTypeGitHubRelease &&
+			candidate.ReleaseSelector == githubReleaseSelectorLatest {
+			next := nextGitHubCheckAt(now, candidate.SourceID, minimumCheckInterval)
+			nextCheckAt = &next
+		}
+		recovered, recoverErr := recoverExpiredSourceLease(
+			ctx,
+			candidate.SourceID,
+			candidate.LeaseToken,
+			candidate.LeaseExpiresAt,
+			candidate.SyncStatus,
+			now,
+			nextCheckAt,
+		)
+		if recoverErr != nil {
+			summary.FailedSources++
+			logger.WarnF(
+				ctx,
+				"[PagesSourceScan] recover expired lease failed: source_id=%d error=%v",
+				candidate.SourceID,
+				recoverErr,
+			)
+			continue
+		}
+		if recovered {
+			summary.RecoveredLeases++
+			task.AppendLog(ctx, "[recover] 已恢复过期来源租约：source_id=%d", candidate.SourceID)
+		}
+	}
+	return nil
+}
+
+func scanDueGitHubSources(
+	ctx context.Context,
+	now time.Time,
+	summary *pagesSourceScanSummary,
+) error {
+	dueQuery := func() *gorm.DB {
+		return db.DB(ctx).
+			Table("of_pages_project_source_runtime AS runtime").
+			Joins("JOIN of_pages_project_sources AS source ON source.id = runtime.source_id").
+			Where("source.source_type = ?", PagesSourceTypeGitHubRelease).
+			Where("source.release_selector = ?", githubReleaseSelectorLatest).
+			Where("runtime.next_check_at IS NOT NULL AND runtime.next_check_at <= ?", now)
+	}
+	var dueCount int64
+	if err := dueQuery().Count(&dueCount).Error; err != nil {
+		return err
+	}
+	summary.DueSources = int(dueCount)
+
+	var candidates []dueGitHubSourceCandidate
+	if err := dueQuery().
+		Select("source.id AS source_id, source.config_version").
+		Order("runtime.next_check_at ASC").
+		Order("source.id ASC").
+		Limit(pagesSourceScanBatchSize).
+		Scan(&candidates).Error; err != nil {
+		return err
+	}
+	summary.SelectedSources = len(candidates)
+	task.AppendLog(
+		ctx,
+		"[scan] 到期来源=%d，本批=%d",
+		summary.DueSources,
+		summary.SelectedSources,
+	)
+
+	for _, candidate := range candidates {
+		scanOneDueGitHubSource(ctx, candidate, summary)
+	}
+	var remainingDue int64
+	if err := dueQuery().Count(&remainingDue).Error; err != nil {
+		return err
+	}
+	summary.Backlog = int(remainingDue)
+	task.AppendLog(ctx, "[scan] 本批处理后仍到期来源=%d", summary.Backlog)
+	return nil
+}
+
+func scanOneDueGitHubSource(
+	ctx context.Context,
+	candidate dueGitHubSourceCandidate,
+	summary *pagesSourceScanSummary,
+) {
+	snapshot, outcome, err := acquireSourceLease(
+		ctx,
+		candidate.SourceID,
+		candidate.ConfigVersion,
+		sourceActionCheck,
+	)
+	if err != nil {
+		summary.FailedSources++
+		logger.WarnF(ctx, "[PagesSourceScan] acquire check lease failed: source_id=%d error=%v", candidate.SourceID, err)
+		return
+	}
+	switch outcome {
+	case sourceLeaseBusy:
+		summary.BusySources++
+		task.AppendLog(ctx, "[check] 来源正在执行其它任务，跳过：source_id=%d", candidate.SourceID)
+		return
+	case sourceLeaseStale:
+		summary.StaleSources++
+		return
+	}
+	if snapshot == nil || snapshot.SourceType != PagesSourceTypeGitHubRelease ||
+		snapshot.ReleaseSelector != githubReleaseSelectorLatest {
+		summary.StaleSources++
+		if snapshot != nil {
+			if finalizeErr := failSourceLease(ctx, snapshot, errPagesSourceActionStale); finalizeErr != nil {
+				logger.WarnF(
+					ctx,
+					"[PagesSourceScan] finalize stale source failed: source_id=%d error=%v",
+					snapshot.SourceID,
+					finalizeErr,
+				)
+			}
+		}
+		return
+	}
+
+	checkResult, checkErr := checkGitHubSource(ctx, snapshot)
+	if checkErr != nil {
+		summary.FailedSources++
+		recordPagesSourceProviderBackoff(ctx, candidate.SourceID, checkErr, summary)
+		logger.WarnF(
+			ctx,
+			"[PagesSourceScan] source check failed: source_id=%d error=%s",
+			candidate.SourceID,
+			safeGitHubSourceError(checkErr),
+		)
+		return
+	}
+	if checkResult == nil || checkResult.Stale {
+		summary.StaleSources++
+		return
+	}
+	handleCheckedGitHubSource(ctx, snapshot, checkResult, summary)
+}
+
+func recordPagesSourceProviderBackoff(
+	ctx context.Context,
+	sourceID uint,
+	checkErr error,
+	summary *pagesSourceScanSummary,
+) {
+	var domainError *githubSourceProviderDomainError
+	if !errors.As(checkErr, &domainError) ||
+		(domainError.statusCode != 403 && domainError.statusCode != 429) {
+		return
+	}
+
+	retryAt := domainError.retryAt
+	var runtime model.PagesProjectSourceRuntime
+	if err := db.DB(ctx).
+		Select("next_check_at").
+		Where("source_id = ?", sourceID).
+		First(&runtime).Error; err != nil {
+		logger.WarnF(ctx, "[PagesSourceScan] load provider backoff deadline failed: source_id=%d error=%v", sourceID, err)
+	} else if runtime.NextCheckAt != nil {
+		retryAt = runtime.NextCheckAt
+	}
+
+	retryAtText := "unknown"
+	if retryAt != nil {
+		retryAtText = retryAt.UTC().Format(time.RFC3339)
+	}
+	summary.ProviderBackoffs = append(summary.ProviderBackoffs, pagesSourceProviderBackoff{
+		SourceID: sourceID, StatusCode: domainError.statusCode, RetryAt: retryAtText,
+	})
+	task.AppendLog(
+		ctx,
+		"[check] GitHub provider 退避：source_id=%d status=%d retry_at=%s",
+		sourceID,
+		domainError.statusCode,
+		retryAtText,
+	)
+}
+
+func handleCheckedGitHubSource(
+	ctx context.Context,
+	snapshot *sourceExecutionSnapshot,
+	checkResult *githubCheckTaskResult,
+	summary *pagesSourceScanSummary,
+) {
+	summary.CheckedSources++
+	switch checkResult.Status {
+	case pagesSourceStatusUpdateAvailable:
+		summary.UpdatesFound++
+	case pagesSourceStatusAttention:
+		summary.AttentionSources++
+	}
+	if !snapshot.AutoUpdateEnabled || checkResult.Status != pagesSourceStatusUpdateAvailable ||
+		!validOptionalSourceRevision(checkResult.Revision) || checkResult.Revision == "" {
+		return
+	}
+
+	source := model.PagesProjectSource{
+		ID:            snapshot.SourceID,
+		ProjectID:     snapshot.ProjectID,
+		ConfigVersion: snapshot.SourceConfigVersion,
+	}
+	receipt, dispatchErr := dispatchPagesSourceAutoSync(ctx, source, checkResult.Revision)
+	if dispatchErr == nil {
+		summary.DispatchedSyncs++
+		if receipt != nil {
+			task.AppendLog(
+				ctx,
+				"[dispatch] 已投递自动更新：source_id=%d execution_id=%s revision=%s",
+				snapshot.SourceID,
+				receipt.ExecutionID,
+				checkResult.Revision,
+			)
+		}
+		return
+	}
+
+	summary.FailedSources++
+	summary.FailedDispatches++
+	logger.WarnF(
+		ctx,
+		"[PagesSourceScan] dispatch auto sync failed: source_id=%d revision=%s error=%v",
+		snapshot.SourceID,
+		checkResult.Revision,
+		dispatchErr,
+	)
+	updated, recordErr := recordPagesSourceAutoDispatchFailure(
+		ctx,
+		snapshot,
+		checkResult.Revision,
+		checkResult.RetryAt,
+	)
+	if recordErr != nil {
+		logger.WarnF(
+			ctx,
+			"[PagesSourceScan] record auto sync dispatch failure failed: source_id=%d error=%v",
+			snapshot.SourceID,
+			recordErr,
+		)
+	} else if !updated {
+		summary.StaleSources++
+	}
+}
+
+func recordPagesSourceAutoDispatchFailure(
+	ctx context.Context,
+	snapshot *sourceExecutionSnapshot,
+	revision string,
+	retryAt *time.Time,
+) (bool, error) {
+	if snapshot == nil || revision == "" {
+		return false, nil
+	}
+	now := pagesSourceScanNow()
+	next := nextGitHubCheckAt(now, snapshot.SourceID, minimumCheckInterval)
+	if retryAt != nil && retryAt.After(next) {
+		next = retryAt.In(now.Location())
+	}
+	result := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+		Where("source_id = ?", snapshot.SourceID).
+		Where("sync_status = ? AND last_seen_revision = ?", pagesSourceStatusUpdateAvailable, revision).
+		Where("lease_expires_at IS NULL OR lease_expires_at <= ?", now).
+		Where(`EXISTS (
+			SELECT 1 FROM of_pages_project_sources AS source
+			WHERE source.id = ? AND source.config_version = ?
+				AND source.source_type = ? AND source.release_selector = ?
+				AND source.auto_update_enabled = ?
+		)`,
+			snapshot.SourceID,
+			snapshot.SourceConfigVersion,
+			PagesSourceTypeGitHubRelease,
+			githubReleaseSelectorLatest,
+			true,
+		).
+		Updates(map[string]any{
+			sourceRuntimeColumnSyncStatus:  pagesSourceStatusUpdateAvailable,
+			sourceRuntimeColumnLastError:   errPagesSourceTaskDispatchFailed,
+			sourceRuntimeColumnNextCheckAt: &next,
+		})
+	if result.Error != nil {
+		return false, result.Error
+	}
+	return result.RowsAffected == 1, nil
+}
diff --git a/internal/apps/openflare/pages/source_scanner_test.go b/internal/apps/openflare/pages/source_scanner_test.go
new file mode 100644
index 00000000..2d7c2394
--- /dev/null
+++ b/internal/apps/openflare/pages/source_scanner_test.go
@@ -0,0 +1,511 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package pages
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/Rain-kl/Wavelet/internal/db"
+	"github.com/Rain-kl/Wavelet/internal/integration/githubrelease"
+	"github.com/Rain-kl/Wavelet/internal/model"
+	"gorm.io/gorm"
+)
+
+type scannerDispatchedSync struct {
+	SourceID uint
+	Revision string
+}
+
+func TestGitHubLatestAutoConfigPreservesIdentityAndRuntimeCursor(t *testing.T) {
+	ctx := setupPagesSourceTest(t)
+	project := mustCreatePagesSourceProject(t, ctx, "scanner-auto-config")
+	source, _ := mustConfigureGitHubSourceWithoutDispatch(t, ctx, project.ID, SourceUpdateInput{
+		SourceType:           PagesSourceTypeGitHubRelease,
+		RepositoryURL:        "https://github.com/scanner/auto-config",
+		AutoUpdateEnabled:    false,
+		CheckIntervalMinutes: 60,
+	})
+	identity := source.SourceIdentity
+	seenRevision := strings.Repeat("a", sourceRevisionHexLength)
+	appliedRevision := strings.Repeat("b", sourceRevisionHexLength)
+	future := time.Now().Add(time.Hour)
+	if err := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+		Where("source_id = ?", source.ID).
+		Updates(map[string]any{
+			"etag":                  `"cursor-etag"`,
+			"last_seen_revision":    seenRevision,
+			"last_seen_detail":      `{"provider":"github","release_id":"2","asset_id":"2","tag":"v2","asset_name":"dist.zip"}`,
+			"last_applied_revision": appliedRevision,
+			"last_applied_detail":   `{"provider":"github","release_id":"1","asset_id":"1","tag":"v1","asset_name":"dist.zip"}`,
+			"sync_status":           pagesSourceStatusSyncing,
+			"last_error":            "old error",
+			"lease_token":           "in-flight",
+			"lease_expires_at":      &future,
+		}).Error; err != nil {
+		t.Fatalf("seed runtime error = %v, want nil", err)
+	}
+
+	input := SourceUpdateInput{
+		SourceType:           PagesSourceTypeGitHubRelease,
+		RepositoryURL:        "https://github.com/scanner/auto-config",
+		AutoUpdateEnabled:    true,
+		CheckIntervalMinutes: 15,
+	}
+	if err := validateGitHubSourceInput(input); err != nil {
+		t.Fatalf("validateGitHubSourceInput(auto latest) error = %v, want nil", err)
+	}
+	if err := db.DB(ctx).Transaction(func(tx *gorm.DB) error {
+		changed, err := updateGitHubSourceTx(tx, project.ID, input)
+		if err == nil && !changed {
+			return errors.New("auto config update was treated as no-op")
+		}
+		return err
+	}); err != nil {
+		t.Fatalf("updateGitHubSourceTx(auto latest) error = %v, want nil", err)
+	}
+
+	updated, runtime := mustLoadPagesSource(t, ctx, project.ID)
+	if updated.SourceIdentity != identity || updated.ConfigVersion != source.ConfigVersion+1 {
+		t.Errorf(
+			"updated source = identity:%q version:%d, want identity:%q version:%d",
+			updated.SourceIdentity,
+			updated.ConfigVersion,
+			identity,
+			source.ConfigVersion+1,
+		)
+	}
+	if !updated.AutoUpdateEnabled || updated.CheckIntervalMinutes != 15 {
+		t.Errorf("updated auto config = enabled:%t interval:%d, want true/15", updated.AutoUpdateEnabled, updated.CheckIntervalMinutes)
+	}
+	if runtime.ETag != `"cursor-etag"` || runtime.LastSeenRevision != seenRevision ||
+		runtime.LastAppliedRevision != appliedRevision {
+		t.Errorf("runtime cursor changed after auto-only update: %+v", runtime)
+	}
+	if runtime.LeaseToken != "" || runtime.LeaseExpiresAt != nil || runtime.LastError != "" ||
+		runtime.SyncStatus != pagesSourceStatusUpdateAvailable || runtime.NextCheckAt == nil {
+		t.Errorf(
+			"runtime fence = token:%q expiry:%v error:%q status:%q next:%v",
+			runtime.LeaseToken,
+			runtime.LeaseExpiresAt,
+			runtime.LastError,
+			runtime.SyncStatus,
+			runtime.NextCheckAt,
+		)
+	}
+
+	tagConfig, err := buildGitHubSourceConfig(SourceUpdateInput{
+		SourceType:           PagesSourceTypeGitHubRelease,
+		RepositoryURL:        "https://github.com/scanner/auto-config",
+		ReleaseSelector:      githubReleaseSelectorTag,
+		ReleaseTag:           "v1",
+		AutoUpdateEnabled:    true,
+		CheckIntervalMinutes: 60,
+	})
+	if err != nil {
+		t.Fatalf("buildGitHubSourceConfig(tag) error = %v, want nil", err)
+	}
+	if tagConfig.AutoUpdate || tagConfig.CheckInterval != 0 {
+		t.Errorf("tag config auto/interval = %t/%d, want false/0", tagConfig.AutoUpdate, tagConfig.CheckInterval)
+	}
+}
+
+func TestRecoverExpiredPagesSourceLeaseUsesExactCASAndStableJitter(t *testing.T) {
+	ctx := setupPagesSourceTest(t)
+	project := mustCreatePagesSourceProject(t, ctx, "scanner-expired-lease")
+	source, _ := mustConfigureGitHubSourceWithoutDispatch(t, ctx, project.ID, SourceUpdateInput{
+		SourceType:    PagesSourceTypeGitHubRelease,
+		RepositoryURL: "https://github.com/scanner/expired-lease",
+	})
+	now := time.Date(2026, 7, 19, 12, 0, 0, 0, time.UTC)
+	usePagesSourceScannerClock(t, now)
+	expiredAt := now.Add(-time.Minute)
+	if err := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+		Where("source_id = ?", source.ID).
+		Updates(map[string]any{
+			"sync_status":      pagesSourceStatusChecking,
+			"lease_token":      "expired-owner",
+			"lease_expires_at": &expiredAt,
+			"next_check_at":    &expiredAt,
+		}).Error; err != nil {
+		t.Fatalf("seed expired lease error = %v, want nil", err)
+	}
+
+	summary := pagesSourceScanSummary{}
+	if err := recoverExpiredPagesSourceLeases(ctx, now, &summary); err != nil {
+		t.Fatalf("recoverExpiredPagesSourceLeases() error = %v, want nil", err)
+	}
+	if summary.ExpiredCandidates != 1 || summary.RecoveredLeases != 1 || summary.FailedSources != 0 {
+		t.Errorf("recovery summary = %+v, want one recovered lease", summary)
+	}
+	_, runtime := mustLoadPagesSource(t, ctx, project.ID)
+	wantNext := nextGitHubCheckAt(now, source.ID, minimumCheckInterval)
+	if runtime.SyncStatus != pagesSourceStatusFailed || runtime.LastError != errPagesSourceLeaseExpired ||
+		runtime.LeaseToken != "" || runtime.LeaseExpiresAt != nil || runtime.NextCheckAt == nil ||
+		runtime.NextCheckAt.Sub(wantNext) != 0 {
+		t.Errorf(
+			"recovered runtime = status:%q error:%q token:%q expiry:%v next:%v, want next %v",
+			runtime.SyncStatus,
+			runtime.LastError,
+			runtime.LeaseToken,
+			runtime.LeaseExpiresAt,
+			runtime.NextCheckAt,
+			wantNext,
+		)
+	}
+
+	renewedExpiry := now.Add(time.Minute)
+	if err := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+		Where("source_id = ?", source.ID).
+		Updates(map[string]any{
+			"sync_status":      pagesSourceStatusSyncing,
+			"lease_token":      "renewed-owner",
+			"lease_expires_at": &renewedExpiry,
+		}).Error; err != nil {
+		t.Fatalf("seed renewed lease error = %v, want nil", err)
+	}
+	recovered, err := recoverExpiredSourceLease(
+		ctx,
+		source.ID,
+		"renewed-owner",
+		expiredAt,
+		pagesSourceStatusSyncing,
+		now,
+		&wantNext,
+	)
+	if err != nil || recovered {
+		t.Fatalf("recoverExpiredSourceLease(stale expiry) = %t, %v; want false, nil", recovered, err)
+	}
+	_, runtime = mustLoadPagesSource(t, ctx, project.ID)
+	if runtime.LeaseToken != "renewed-owner" || runtime.LeaseExpiresAt == nil ||
+		runtime.LeaseExpiresAt.Sub(renewedExpiry) != 0 || runtime.SyncStatus != pagesSourceStatusSyncing {
+		t.Errorf("stale recovery overwrote renewed lease: %+v", runtime)
+	}
+}
+
+func TestScheduledAutoSyncPersistsExplicitDeploymentTrigger(t *testing.T) {
+	ctx := setupPagesSourceSyncTest(t)
+	project := mustCreatePagesSourceProject(t, ctx, "scanner-scheduled-trigger")
+	source, _ := mustConfigureGitHubSourceWithoutDispatch(t, ctx, project.ID, SourceUpdateInput{
+		SourceType:        PagesSourceTypeGitHubRelease,
+		RepositoryURL:     "https://github.com/scanner/scheduled-trigger",
+		AutoUpdateEnabled: true,
+	})
+	packageBytes := testPagesZip(t, map[string]string{"index.html": "scheduled-v1"})
+	packageHash := sha256.Sum256(packageBytes)
+	release := githubrelease.Release{ID: "scheduled-release", Tag: "v1"}
+	asset := githubrelease.Asset{
+		ID: "scheduled-asset", Name: defaultGitHubAssetName, State: "uploaded",
+		UpdatedAt: time.Date(2026, 7, 19, 12, 30, 0, 0, time.UTC),
+	}
+	target, err := buildGitHubSourceTarget(release, asset, nil)
+	if err != nil {
+		t.Fatalf("buildGitHubSourceTarget() error = %v, want nil", err)
+	}
+	useFakeGitHubReleaseClient(t, &fakeGitHubReleaseClient{
+		resolve: func(context.Context, githubrelease.ResolveRequest) (githubrelease.ResolveResult, error) {
+			return githubrelease.ResolveResult{Release: release, Asset: asset}, nil
+		},
+		download: func(context.Context, githubrelease.DownloadRequest) (*githubrelease.DownloadResult, error) {
+			path := filepath.Join(t.TempDir(), "scheduled.zip")
+			if err := os.WriteFile(path, packageBytes, 0o600); err != nil {
+				t.Fatalf("os.WriteFile(scheduled package) error = %v", err)
+			}
+			return &githubrelease.DownloadResult{
+				Path: path, Size: int64(len(packageBytes)), SHA256: hex.EncodeToString(packageHash[:]),
+			}, nil
+		},
+	})
+	snapshot, outcome, err := acquireSourceLease(ctx, source.ID, source.ConfigVersion, sourceActionSync)
+	if err != nil || outcome != sourceLeaseAcquired {
+		t.Fatalf("acquireSourceLease() = %+v, %q, %v; want acquired", snapshot, outcome, err)
+	}
+	synced, err := syncGitHubSourceWithTrigger(
+		ctx,
+		snapshot,
+		pagesSourceCreatedBySystem,
+		target.Revision,
+		"",
+		pagesSourceTriggerScheduledAutoUpdate,
+	)
+	if err != nil || synced == nil || synced.Deployment == nil || synced.Stale {
+		t.Fatalf("syncGitHubSourceWithTrigger() = %+v, %v; want active deployment", synced, err)
+	}
+	deployment, err := model.GetPagesDeploymentByID(ctx, synced.Deployment.ID)
+	if err != nil {
+		t.Fatalf("GetPagesDeploymentByID(%d) error = %v", synced.Deployment.ID, err)
+	}
+	if deployment.TriggerType != pagesSourceTriggerScheduledAutoUpdate ||
+		deployment.CreatedBy != pagesSourceCreatedBySystem {
+		t.Errorf(
+			"scheduled provenance = trigger:%q actor:%q, want %q/%q",
+			deployment.TriggerType,
+			deployment.CreatedBy,
+			pagesSourceTriggerScheduledAutoUpdate,
+			pagesSourceCreatedBySystem,
+		)
+	}
+}
+
+func TestPagesSourceScannerSerialBatchIsolation304AndActualBacklog(t *testing.T) {
+	ctx := setupPagesSourceTest(t)
+	now := time.Now().Truncate(time.Second)
+	usePagesSourceScannerClock(t, now)
+	dueAt := now.Add(-time.Hour)
+
+	type fixture struct {
+		source     *model.PagesProjectSource
+		runtime    *model.PagesProjectSourceRuntime
+		repository string
+	}
+	fixtures := make([]fixture, 0, 22)
+	byRepository := make(map[string]int, 22)
+	for index := 1; index <= 22; index++ {
+		project := mustCreatePagesSourceProject(t, ctx, fmt.Sprintf("scanner-batch-%02d", index))
+		repository := fmt.Sprintf("scanner/source-%02d", index)
+		source, runtime := mustConfigureGitHubSourceWithoutDispatch(t, ctx, project.ID, SourceUpdateInput{
+			SourceType:           PagesSourceTypeGitHubRelease,
+			RepositoryURL:        "https://github.com/" + repository,
+			AutoUpdateEnabled:    index != 4,
+			CheckIntervalMinutes: 60,
+		})
+		if err := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+			Where("source_id = ?", source.ID).
+			Update("next_check_at", &dueAt).Error; err != nil {
+			t.Fatalf("mark source %d due error = %v, want nil", source.ID, err)
+		}
+		fixtures = append(fixtures, fixture{source: source, runtime: runtime, repository: repository})
+		byRepository[repository] = index
+	}
+
+	busyUntil := now.Add(time.Hour)
+	if err := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+		Where("source_id = ?", fixtures[0].source.ID).
+		Updates(map[string]any{
+			"sync_status":      pagesSourceStatusChecking,
+			"lease_token":      "busy-owner",
+			"lease_expires_at": &busyUntil,
+		}).Error; err != nil {
+		t.Fatalf("seed busy source error = %v, want nil", err)
+	}
+
+	stored304Revision := strings.Repeat("3", sourceRevisionHexLength)
+	if err := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+		Where("source_id = ?", fixtures[2].source.ID).
+		Updates(map[string]any{
+			"etag":               `"stored-etag"`,
+			"last_seen_revision": stored304Revision,
+			"last_seen_detail":   `{"provider":"github","release_id":"release-3","asset_id":"3","tag":"v3","asset_name":"dist.zip"}`,
+			"sync_status":        pagesSourceStatusUpdateAvailable,
+		}).Error; err != nil {
+		t.Fatalf("seed 304 cursor error = %v, want nil", err)
+	}
+
+	if err := db.DB(ctx).Model(&model.PagesProjectSourceRuntime{}).
+		Where("source_id = ?", fixtures[4].source.ID).
+		Updates(map[string]any{
+			"last_applied_revision": strings.Repeat("a", sourceRevisionHexLength),
+			"last_applied_detail":   `{"provider":"github","release_id":"shared-release","asset_id":"old","tag":"v5","asset_name":"dist.zip"}`,
+		}).Error; err != nil {
+		t.Fatalf("seed replacement cursor error = %v, want nil", err)
+	}
+
+	retryAt := now.Add(2 * time.Hour)
+	calledRepositories := make([]string, 0, pagesSourceScanBatchSize)
+	useFakeGitHubReleaseClient(t, &fakeGitHubReleaseClient{
+		resolve: func(_ context.Context, request githubrelease.ResolveRequest) (githubrelease.ResolveResult, error) {
+			index := byRepository[request.Repository]
+			calledRepositories = append(calledRepositories, request.Repository)
+			switch index {
+			case 2:
+				return githubrelease.ResolveResult{}, &githubrelease.Error{
+					Kind: githubrelease.ErrMetadata, StatusCode: 429, RetryAt: &retryAt,
+				}
+			case 3:
+				if request.ETag != `"stored-etag"` {
+					t.Errorf("304 source ETag = %q, want stored ETag", request.ETag)
+				}
+				return githubrelease.ResolveResult{NotModified: true, ETag: request.ETag}, nil
+			default:
+				releaseID := fmt.Sprintf("release-%d", index)
+				if index == 5 {
+					releaseID = "shared-release"
+				}
+				result := githubrelease.ResolveResult{
+					ETag:    fmt.Sprintf(`"etag-%d"`, index),
+					Release: githubrelease.Release{ID: releaseID, Tag: fmt.Sprintf("v%d", index)},
+					Asset: githubrelease.Asset{
+						ID:        fmt.Sprintf("asset-%d", index),
+						Name:      defaultGitHubAssetName,
+						State:     "uploaded",
+						UpdatedAt: now.Add(time.Duration(index) * time.Minute),
+					},
+				}
+				if index == 6 {
+					result.RetryAt = &retryAt
+				}
+				return result, nil
+			}
+		},
+		download: func(context.Context, githubrelease.DownloadRequest) (*githubrelease.DownloadResult, error) {
+			t.Fatal("scanner downloaded an asset; want check-only behavior")
+			return nil, nil
+		},
+	})
+
+	dispatched := make([]scannerDispatchedSync, 0, pagesSourceScanBatchSize)
+	previousDispatch := dispatchPagesSourceAutoSync
+	dispatchPagesSourceAutoSync = func(
+		_ context.Context,
+		source model.PagesProjectSource,
+		revision string,
+	) (*SourceActionReceipt, error) {
+		if source.ID == fixtures[5].source.ID {
+			return nil, errors.New("injected dispatch failure")
+		}
+		dispatched = append(dispatched, scannerDispatchedSync{SourceID: source.ID, Revision: revision})
+		return &SourceActionReceipt{ExecutionID: fmt.Sprintf("%d", source.ID), Action: sourceActionSync}, nil
+	}
+	t.Cleanup(func() { dispatchPagesSourceAutoSync = previousDispatch })
+
+	result, err := (&SourceScanHandler{}).Execute(ctx, []byte("{}"))
+	if err != nil {
+		t.Fatalf("SourceScanHandler.Execute() error = %v, want nil", err)
+	}
+	var summary pagesSourceScanSummary
+	if err := json.Unmarshal([]byte(result.Detail), &summary); err != nil {
+		t.Fatalf("json.Unmarshal(scan detail) error = %v, want nil", err)
+	}
+	if summary.DueSources != 22 || summary.SelectedSources != pagesSourceScanBatchSize ||
+		summary.CheckedSources != 18 || summary.UpdatesFound != 17 || summary.AttentionSources != 1 ||
+		summary.DispatchedSyncs != 15 || summary.FailedDispatches != 1 ||
+		summary.BusySources != 1 || summary.FailedSources != 2 ||
+		summary.Backlog != 3 {
+		t.Errorf("scan summary = %+v, want due=22 selected=20 checked=18 updates=17 attention=1 dispatched=15 dispatch_failed=1 busy=1 failed=2 backlog=3", summary)
+	}
+	if len(summary.ProviderBackoffs) != 1 ||
+		summary.ProviderBackoffs[0].SourceID != fixtures[1].source.ID ||
+		summary.ProviderBackoffs[0].StatusCode != 429 ||
+		summary.ProviderBackoffs[0].RetryAt != retryAt.UTC().Format(time.RFC3339) {
+		t.Errorf("scan provider backoffs = %+v, want source=%d status=429 retry_at=%s", summary.ProviderBackoffs, fixtures[1].source.ID, retryAt.UTC().Format(time.RFC3339))
+	}
+
+	if len(calledRepositories) != 19 {
+		t.Fatalf("Resolve calls = %d, want 19 (one busy source in selected batch)", len(calledRepositories))
+	}
+	for index, repository := range calledRepositories {
+		want := fixtures[index+1].repository
+		if repository != want {
+			t.Fatalf("Resolve order[%d] = %q, want %q", index, repository, want)
+		}
+	}
+
+	if !containsDispatchedSource(dispatched, fixtures[2].source.ID, stored304Revision) {
+		t.Errorf("304 stored revision was not dispatched: %+v", dispatched)
+	}
+	if containsDispatchedSource(dispatched, fixtures[3].source.ID, "") {
+		t.Errorf("auto=false source was dispatched: %+v", dispatched)
+	}
+	if containsDispatchedSource(dispatched, fixtures[4].source.ID, "") {
+		t.Errorf("attention source was dispatched: %+v", dispatched)
+	}
+
+	_, dispatchFailedRuntime := mustLoadPagesSource(t, ctx, fixtures[5].source.ProjectID)
+	if dispatchFailedRuntime.SyncStatus != pagesSourceStatusUpdateAvailable ||
+		dispatchFailedRuntime.LastError != errPagesSourceTaskDispatchFailed ||
+		dispatchFailedRuntime.NextCheckAt == nil || dispatchFailedRuntime.NextCheckAt.Before(retryAt) ||
+		dispatchFailedRuntime.LastSeenRevision == "" {
+		t.Errorf(
+			"dispatch failure runtime = status:%q error:%q next:%v seen:%q, want preserved update and provider deadline >= %v",
+			dispatchFailedRuntime.SyncStatus,
+			dispatchFailedRuntime.LastError,
+			dispatchFailedRuntime.NextCheckAt,
+			dispatchFailedRuntime.LastSeenRevision,
+			retryAt,
+		)
+	}
+}
+
+func TestPagesSourceScannerIncludesOrphanCleanupSummary(t *testing.T) {
+	ctx := setupPagesSourceTest(t)
+	now := time.Now().Truncate(time.Second)
+	usePagesSourceScannerClock(t, now)
+
+	previousReconcile := reconcilePagesSourceOrphans
+	reconcilePagesSourceOrphans = func(
+		_ context.Context,
+		gotNow time.Time,
+	) (PagesOrphanCleanupSummary, error) {
+		if !gotNow.Equal(now) {
+			t.Errorf("orphan cleanup now = %v, want %v", gotNow, now)
+		}
+		return PagesOrphanCleanupSummary{
+			Candidates:    7,
+			Reconciled:    1,
+			Referenced:    2,
+			LeaseBusy:     1,
+			InvalidMarker: 1,
+			Skipped:       1,
+			Failed:        1,
+		}, nil
+	}
+	t.Cleanup(func() { reconcilePagesSourceOrphans = previousReconcile })
+
+	result, err := (&SourceScanHandler{}).Execute(ctx, []byte("{}"))
+	if err != nil {
+		t.Fatalf("SourceScanHandler.Execute() error = %v, want nil", err)
+	}
+	var summary pagesSourceScanSummary
+	if err := json.Unmarshal([]byte(result.Detail), &summary); err != nil {
+		t.Fatalf("json.Unmarshal(scan detail) error = %v, want nil", err)
+	}
+	if summary.OrphanCleanup.Candidates != 7 || summary.OrphanCleanup.Reconciled != 1 ||
+		summary.OrphanCleanup.Referenced != 2 || summary.OrphanCleanup.LeaseBusy != 1 ||
+		summary.OrphanCleanup.InvalidMarker != 1 || summary.OrphanCleanup.Skipped != 1 ||
+		summary.OrphanCleanup.Failed != 1 {
+		t.Errorf("orphan cleanup summary = %+v, want injected result", summary.OrphanCleanup)
+	}
+}
+
+func TestPagesSourceScanPayloadAndMetaAreInternalOnly(t *testing.T) {
+	handler := &SourceScanHandler{}
+	if normalized, err := handler.ValidatePayload(nil); err != nil || string(normalized) != "{}" {
+		t.Errorf("ValidatePayload(nil) = %s, %v; want {}, nil", normalized, err)
+	}
+	if _, err := handler.ValidatePayload([]byte(`{"unexpected":true}`)); err == nil {
+		t.Error("ValidatePayload(unknown field) error = nil, want non-nil")
+	}
+	if !PagesSourceScanMeta.InternalOnly || PagesSourceScanMeta.Type != TaskTypePagesSourceScan ||
+		PagesSourceScanMeta.AsynqTask != PagesSourceScanTask || PagesSourceScanMeta.MaxRetry != 0 {
+		t.Errorf("PagesSourceScanMeta = %+v, want internal bounded scheduled scanner", PagesSourceScanMeta)
+	}
+	if PagesSourceScanMeta.SupportsTime {
+		t.Error("PagesSourceScanMeta.SupportsTime = true, want empty scanner payload")
+	}
+}
+
+func usePagesSourceScannerClock(t *testing.T, now time.Time) {
+	t.Helper()
+	previous := pagesSourceScanNow
+	pagesSourceScanNow = func() time.Time { return now }
+	t.Cleanup(func() { pagesSourceScanNow = previous })
+}
+
+func containsDispatchedSource(dispatched []scannerDispatchedSync, sourceID uint, revision string) bool {
+	for _, item := range dispatched {
+		if item.SourceID == sourceID && (revision == "" || item.Revision == revision) {
+			return true
+		}
+	}
+	return false
+}
diff --git a/internal/apps/openflare/pages/source_sync.go b/internal/apps/openflare/pages/source_sync.go
index 4ef52431..972305dd 100644
--- a/internal/apps/openflare/pages/source_sync.go
+++ b/internal/apps/openflare/pages/source_sync.go
@@ -25,10 +25,11 @@ import (
 )
 
 const (
-	pagesSourceTriggerManualSync = "manual_sync"
-	pagesSourceCreatedBySystem   = "system:pages-source-sync"
-	pagesSourceHeartbeatInterval = pagesSourceSyncLeaseDuration / 3
-	pagesSourceCleanupTimeout    = 15 * time.Second
+	pagesSourceTriggerManualSync          = "manual_sync"
+	pagesSourceTriggerScheduledAutoUpdate = "scheduled_auto_update"
+	pagesSourceCreatedBySystem            = "system:pages-source-sync"
+	pagesSourceHeartbeatInterval          = pagesSourceSyncLeaseDuration / 3
+	pagesSourceCleanupTimeout             = 15 * time.Second
 )
 
 var (
@@ -154,16 +155,17 @@ func sourceCleanupContext(ctx context.Context) (context.Context, context.CancelF
 	return context.WithTimeout(context.WithoutCancel(ctx), pagesSourceCleanupTimeout)
 }
 
-func syncRemoteSource(
+func syncRemoteSourceWithTrigger(
 	ctx context.Context,
 	snapshot *sourceExecutionSnapshot,
 	actor string,
+	triggerType string,
 ) (outcome *sourceSyncOutcome, resultErr error) {
 	if snapshot == nil || snapshot.SourceType != PagesSourceTypeRemoteURL {
 		return nil, errors.New(errPagesSourceTypeUnsupported)
 	}
 	actor = strings.TrimSpace(actor)
-	if actor == "" {
+	if actor == "" || !validSourceDeploymentTrigger(triggerType) {
 		return nil, errors.New(errPagesSourceActionInvalid)
 	}
 	defer func() {
@@ -222,7 +224,7 @@ func syncRemoteSource(
 	}
 
 	task.AppendLog(ctx, "[activate] 正在原子切换生产部署")
-	deployment, reused, referenced, err := commitSourceDeployment(
+	deployment, reused, referenced, err := commitSourceDeploymentWithTrigger(
 		ctx,
 		snapshot,
 		prepared.Candidate.Checksum,
@@ -230,6 +232,7 @@ func syncRemoteSource(
 		prepared.Detail,
 		prepared.DetailJSON,
 		actor,
+		triggerType,
 		prepared.Manifest,
 		ingestState.Result,
 		ingestState.HasIngest,
@@ -382,7 +385,7 @@ func findSourceDeployment(
 	return &deployment, nil
 }
 
-func commitSourceDeployment(
+func commitSourceDeploymentWithTrigger(
 	ctx context.Context,
 	snapshot *sourceExecutionSnapshot,
 	revision string,
@@ -390,6 +393,7 @@ func commitSourceDeployment(
 	detail sourceDetail,
 	detailJSON string,
 	actor string,
+	triggerType string,
 	manifest *deploymentManifest,
 	ingestResult upload.IngestResult,
 	hasIngest bool,
@@ -398,6 +402,9 @@ func commitSourceDeployment(
 	if snapshot == nil || manifest == nil {
 		return nil, false, false, errors.New(errPagesSourceSyncFailed)
 	}
+	if !validSourceDeploymentTrigger(triggerType) {
+		return nil, false, false, errors.New(errPagesSourceActionInvalid)
+	}
 	var committed model.PagesDeployment
 	reused := false
 	ingestReferenced := false
@@ -407,7 +414,8 @@ func commitSourceDeployment(
 			return err
 		}
 		target, targetReused, err := resolveSourceDeploymentTx(
-			tx, state, revision, packageChecksum, detail, detailJSON, actor, manifest, ingestResult, hasIngest,
+			tx, state, revision, packageChecksum, detail, detailJSON, actor, triggerType,
+			manifest, ingestResult, hasIngest,
 		)
 		if err != nil {
 			return err
@@ -499,6 +507,7 @@ func resolveSourceDeploymentTx(
 	detail sourceDetail,
 	detailJSON string,
 	actor string,
+	triggerType string,
 	manifest *deploymentManifest,
 	ingestResult upload.IngestResult,
 	hasIngest bool,
@@ -520,7 +529,7 @@ func resolveSourceDeploymentTx(
 		return nil, false, errSourceFinalFence
 	}
 	return createSourceDeploymentTx(
-		tx, state, revision, packageChecksum, detail, detailJSON, actor, manifest, ingestResult,
+		tx, state, revision, packageChecksum, detail, detailJSON, actor, triggerType, manifest, ingestResult,
 	)
 }
 
@@ -532,6 +541,7 @@ func createSourceDeploymentTx(
 	detail sourceDetail,
 	detailJSON string,
 	actor string,
+	triggerType string,
 	manifest *deploymentManifest,
 	ingestResult upload.IngestResult,
 ) (*model.PagesDeployment, bool, error) {
@@ -558,7 +568,7 @@ func createSourceDeploymentTx(
 		SourceRevision:   &revisionValue,
 		SourceLabel:      sourceDetailLabel(detail),
 		SourceMeta:       detailJSON,
-		TriggerType:      pagesSourceTriggerManualSync,
+		TriggerType:      triggerType,
 	}
 	result := tx.Clauses(clause.OnConflict{DoNothing: true}).Create(target)
 	if result.Error != nil {
@@ -573,6 +583,10 @@ func createSourceDeploymentTx(
 	return target, false, nil
 }
 
+func validSourceDeploymentTrigger(triggerType string) bool {
+	return triggerType == pagesSourceTriggerManualSync || triggerType == pagesSourceTriggerScheduledAutoUpdate
+}
+
 func reloadSourceDeploymentTx(
 	tx *gorm.DB,
 	projectID uint,
@@ -657,7 +671,7 @@ func activateSourceDeploymentTx(
 		state.Source.ReleaseSelector == githubReleaseSelectorLatest {
 		next := nextGitHubCheckAt(finishedAt, state.Source.ID, state.Source.CheckIntervalMinutes)
 		if nextCheckNotBefore != nil && nextCheckNotBefore.After(next) {
-			next = nextCheckNotBefore.UTC()
+			next = nextCheckNotBefore.In(finishedAt.Location())
 		}
 		nextCheckAt = &next
 	}
diff --git a/internal/apps/openflare/pages/source_tasks.go b/internal/apps/openflare/pages/source_tasks.go
index 5e72b383..9d8fdf65 100644
--- a/internal/apps/openflare/pages/source_tasks.go
+++ b/internal/apps/openflare/pages/source_tasks.go
@@ -51,6 +51,7 @@ type SourceActionPayload struct {
 	ConfigVersion     int    `json:"config_version"`
 	Action            string `json:"action"`
 	Actor             string `json:"actor"`
+	TriggerType       string `json:"trigger_type"`
 	TargetRevision    string `json:"target_revision"`
 	ConfirmedRevision string `json:"confirmed_revision"`
 }
@@ -71,22 +72,59 @@ func (h *SourceActionHandler) ValidatePayload(payload []byte) ([]byte, error) {
 	}
 	input.Action = strings.TrimSpace(input.Action)
 	input.Actor = strings.TrimSpace(input.Actor)
+	input.TriggerType = strings.TrimSpace(input.TriggerType)
 	input.TargetRevision = strings.TrimSpace(input.TargetRevision)
 	input.ConfirmedRevision = strings.TrimSpace(input.ConfirmedRevision)
-	if input.SourceID == 0 || input.ConfigVersion <= 0 ||
-		(input.Action != sourceActionCheck && input.Action != sourceActionSync) ||
-		!validPagesSourceActor(input.Actor) ||
-		!validOptionalSourceRevision(input.TargetRevision) ||
-		!validOptionalSourceRevision(input.ConfirmedRevision) ||
-		(input.Action == sourceActionCheck && (input.TargetRevision != "" || input.ConfirmedRevision != "")) ||
-		(input.TargetRevision != "" && input.ConfirmedRevision != "") ||
-		(input.TargetRevision != "" && input.Actor != pagesSourceCreatedBySystem) ||
-		(input.ConfirmedRevision != "" && !strings.HasPrefix(input.Actor, "user:")) {
+	if input.Action == sourceActionSync && input.TriggerType == "" {
+		// Keep already queued Phase 2 payloads valid while making every new
+		// dispatch carry an explicit deployment trigger.
+		input.TriggerType = pagesSourceTriggerManualSync
+	}
+	if !validSourceActionPayload(input) {
 		return nil, errors.New(errPagesSourceActionInvalid)
 	}
 	return json.Marshal(input)
 }
 
+func validSourceActionPayload(input SourceActionPayload) bool {
+	if input.SourceID == 0 || input.ConfigVersion <= 0 {
+		return false
+	}
+	if input.Action != sourceActionCheck && input.Action != sourceActionSync {
+		return false
+	}
+	if !validPagesSourceActor(input.Actor) {
+		return false
+	}
+	if !validOptionalSourceRevision(input.TargetRevision) ||
+		!validOptionalSourceRevision(input.ConfirmedRevision) {
+		return false
+	}
+	if input.Action == sourceActionCheck {
+		return input.TriggerType == "" && input.TargetRevision == "" && input.ConfirmedRevision == ""
+	}
+	return validSourceSyncPayload(input)
+}
+
+func validSourceSyncPayload(input SourceActionPayload) bool {
+	if !validSourceDeploymentTrigger(input.TriggerType) ||
+		(input.TargetRevision != "" && input.ConfirmedRevision != "") {
+		return false
+	}
+	switch input.TriggerType {
+	case pagesSourceTriggerScheduledAutoUpdate:
+		return input.Actor == pagesSourceCreatedBySystem &&
+			input.TargetRevision != "" && input.ConfirmedRevision == ""
+	case pagesSourceTriggerManualSync:
+		if input.TargetRevision != "" || !strings.HasPrefix(input.Actor, "user:") {
+			return false
+		}
+		return true
+	default:
+		return false
+	}
+}
+
 // Execute validates again inside the worker and performs the source action.
 func (h *SourceActionHandler) Execute(ctx context.Context, payload []byte) (*task.TaskResult, error) {
 	normalized, err := h.ValidatePayload(payload)
@@ -169,9 +207,11 @@ func executeSourceSyncAction(
 	var result *sourceSyncOutcome
 	var err error
 	if source.SourceType == PagesSourceTypeGitHubRelease {
-		result, err = syncGitHubSource(ctx, snapshot, input.Actor, input.TargetRevision, input.ConfirmedRevision)
+		result, err = syncGitHubSourceWithTrigger(
+			ctx, snapshot, input.Actor, input.TargetRevision, input.ConfirmedRevision, input.TriggerType,
+		)
 	} else {
-		result, err = syncRemoteSource(ctx, snapshot, input.Actor)
+		result, err = syncRemoteSourceWithTrigger(ctx, snapshot, input.Actor, input.TriggerType)
 	}
 	if err != nil {
 		logger.ErrorF(ctx, "[PagesSource] sync failed: project_id=%d source_id=%d error=%v", snapshot.ProjectID, snapshot.SourceID, err)
@@ -333,6 +373,25 @@ func dispatchSourceActionSnapshot(
 	targetRevision string,
 	confirmedRevision string,
 	triggeredBy string,
+) (*SourceActionReceipt, error) {
+	triggerType := ""
+	if action == sourceActionSync {
+		triggerType = pagesSourceTriggerManualSync
+	}
+	return dispatchSourceActionSnapshotWithTrigger(
+		ctx, source, action, actor, triggerType, targetRevision, confirmedRevision, triggeredBy,
+	)
+}
+
+func dispatchSourceActionSnapshotWithTrigger(
+	ctx context.Context,
+	source model.PagesProjectSource,
+	action string,
+	actor string,
+	triggerType string,
+	targetRevision string,
+	confirmedRevision string,
+	triggeredBy string,
 ) (*SourceActionReceipt, error) {
 	if task.AsynqClient == nil {
 		return nil, errors.New(errPagesSourceTaskDispatchFailed)
@@ -343,6 +402,7 @@ func dispatchSourceActionSnapshot(
 		ConfigVersion:     source.ConfigVersion,
 		Action:            action,
 		Actor:             actor,
+		TriggerType:       triggerType,
 		TargetRevision:    targetRevision,
 		ConfirmedRevision: confirmedRevision,
 	})
diff --git a/internal/apps/openflare/pages/source_tasks_test.go b/internal/apps/openflare/pages/source_tasks_test.go
index 92458dc6..d51b9af7 100644
--- a/internal/apps/openflare/pages/source_tasks_test.go
+++ b/internal/apps/openflare/pages/source_tasks_test.go
@@ -19,6 +19,7 @@ func TestSourceActionPayloadValidationIsStrictAndCredentialFree(t *testing.T) {
 		ConfigVersion: 3,
 		Action:        sourceActionSync,
 		Actor:         "user:42",
+		TriggerType:   pagesSourceTriggerManualSync,
 	}
 	raw, err := json.Marshal(valid)
 	if err != nil {
@@ -35,6 +36,23 @@ func TestSourceActionPayloadValidationIsStrictAndCredentialFree(t *testing.T) {
 	if got != valid {
 		t.Errorf("ValidatePayload(valid) = %+v, want %+v", got, valid)
 	}
+	legacy := valid
+	legacy.TriggerType = ""
+	legacyRaw, err := json.Marshal(legacy)
+	if err != nil {
+		t.Fatalf("json.Marshal(legacy payload) error = %v, want nil", err)
+	}
+	legacyNormalized, err := handler.ValidatePayload(legacyRaw)
+	if err != nil {
+		t.Fatalf("ValidatePayload(legacy payload) error = %v, want nil", err)
+	}
+	var legacyGot SourceActionPayload
+	if err := json.Unmarshal(legacyNormalized, &legacyGot); err != nil {
+		t.Fatalf("json.Unmarshal(legacy normalized payload) error = %v, want nil", err)
+	}
+	if legacyGot.TriggerType != pagesSourceTriggerManualSync {
+		t.Errorf("legacy payload trigger_type = %q, want %q", legacyGot.TriggerType, pagesSourceTriggerManualSync)
+	}
 	for _, forbidden := range []string{"remote_url", "content_config_version", "expected_revision", "lease_token", "etag"} {
 		if strings.Contains(string(normalized), forbidden) {
 			t.Errorf("normalized payload = %s, want no forbidden field %q", normalized, forbidden)
diff --git a/internal/db/migrator/goose/postgres/202607190002_seed_pages_source_scan.sql b/internal/db/migrator/goose/postgres/202607190002_seed_pages_source_scan.sql
new file mode 100644
index 00000000..d50e45b3
--- /dev/null
+++ b/internal/db/migrator/goose/postgres/202607190002_seed_pages_source_scan.sql
@@ -0,0 +1,38 @@
+-- +goose Up
+-- Earlier built-in schedules used explicit IDs, so advance the identity only
+-- when it trails either existing rows or an already-higher sequence value.
+SELECT setval(
+    pg_get_serial_sequence('w_schedules', 'id'),
+    GREATEST(
+        1,
+        COALESCE((SELECT MAX(id) FROM w_schedules), 0),
+        COALESCE((
+            SELECT sequences.last_value
+            FROM pg_sequences AS sequences
+            WHERE format('%I.%I', sequences.schemaname, sequences.sequencename)::regclass =
+                  pg_get_serial_sequence('w_schedules', 'id')::regclass
+        ), 0)
+    ),
+    TRUE
+);
+
+INSERT INTO w_schedules (name, task_type, cron, payload, is_active, created_at, updated_at)
+SELECT
+    'OpenFlare Pages 部署源扫描',
+    'of_pages_source_scan',
+    '*/5 * * * *',
+    '{}',
+    TRUE,
+    CURRENT_TIMESTAMP,
+    CURRENT_TIMESTAMP
+WHERE NOT EXISTS (
+    SELECT 1 FROM w_schedules WHERE task_type = 'of_pages_source_scan'
+);
+
+-- +goose Down
+DELETE FROM w_schedules
+WHERE task_type = 'of_pages_source_scan'
+  AND name = 'OpenFlare Pages 部署源扫描'
+  AND cron = '*/5 * * * *'
+  AND payload = '{}'
+  AND is_active = TRUE;
diff --git a/internal/db/migrator/goose/sqlite/202607190002_seed_pages_source_scan.sql b/internal/db/migrator/goose/sqlite/202607190002_seed_pages_source_scan.sql
new file mode 100644
index 00000000..dd0235bf
--- /dev/null
+++ b/internal/db/migrator/goose/sqlite/202607190002_seed_pages_source_scan.sql
@@ -0,0 +1,21 @@
+-- +goose Up
+INSERT INTO w_schedules (name, task_type, cron, payload, is_active, created_at, updated_at)
+SELECT
+    'OpenFlare Pages 部署源扫描',
+    'of_pages_source_scan',
+    '*/5 * * * *',
+    '{}',
+    1,
+    CURRENT_TIMESTAMP,
+    CURRENT_TIMESTAMP
+WHERE NOT EXISTS (
+    SELECT 1 FROM w_schedules WHERE task_type = 'of_pages_source_scan'
+);
+
+-- +goose Down
+DELETE FROM w_schedules
+WHERE task_type = 'of_pages_source_scan'
+  AND name = 'OpenFlare Pages 部署源扫描'
+  AND cron = '*/5 * * * *'
+  AND payload = '{}'
+  AND is_active = 1;
diff --git a/internal/db/migrator/pages_source_scan_migration_test.go b/internal/db/migrator/pages_source_scan_migration_test.go
new file mode 100644
index 00000000..3ee01b33
--- /dev/null
+++ b/internal/db/migrator/pages_source_scan_migration_test.go
@@ -0,0 +1,160 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package migrator
+
+import (
+	"database/sql"
+	"fmt"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/Rain-kl/Wavelet/internal/model"
+	"github.com/glebarez/sqlite"
+	"github.com/pressly/goose/v3"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+)
+
+const (
+	pagesSourceScanPreviousMigration = int64(202607190001)
+	pagesSourceScanMigration         = int64(202607190002)
+	pagesSourceScanTaskType          = "of_pages_source_scan"
+)
+
+func TestPagesSourceScanScheduleMigrationSQLite(t *testing.T) {
+	dbPath := t.TempDir() + "/pages-source-scan-migration.db"
+	gormDB, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{
+		DisableForeignKeyConstraintWhenMigrating: true,
+	})
+	require.NoError(t, err)
+	sqlDB, err := gormDB.DB()
+	require.NoError(t, err)
+	sqlDB.SetMaxOpenConns(1)
+	t.Cleanup(func() { require.NoError(t, sqlDB.Close()) })
+
+	runPagesSourceScanScheduleMigration(t, gormDB, sqlDB, dialectSqlite, "goose/sqlite")
+}
+
+func TestPagesSourceScanScheduleMigrationPostgres(t *testing.T) {
+	dsn := strings.TrimSpace(os.Getenv("OPENFLARE_TEST_POSTGRES_DSN"))
+	if dsn == "" {
+		t.Skip("OPENFLARE_TEST_POSTGRES_DSN is not set")
+	}
+	gormDB, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
+		DisableForeignKeyConstraintWhenMigrating: true,
+	})
+	require.NoError(t, err)
+	sqlDB, err := gormDB.DB()
+	require.NoError(t, err)
+	sqlDB.SetMaxOpenConns(1)
+
+	schema := fmt.Sprintf("pages_source_scan_migration_%d", time.Now().UnixNano())
+	require.Regexp(t, `^[a-z0-9_]+$`, schema)
+	require.NoError(t, gormDB.Exec(`CREATE SCHEMA "`+schema+`"`).Error)
+	require.NoError(t, gormDB.Exec(`SET search_path TO "`+schema+`"`).Error)
+	t.Cleanup(func() {
+		assert.NoError(t, gormDB.Exec("SET search_path TO public").Error)
+		assert.NoError(t, gormDB.Exec(`DROP SCHEMA IF EXISTS "`+schema+`" CASCADE`).Error)
+		assert.NoError(t, sqlDB.Close())
+	})
+
+	runPagesSourceScanScheduleMigration(t, gormDB, sqlDB, dialectPostgres, "goose/postgres")
+}
+
+func runPagesSourceScanScheduleMigration(
+	t *testing.T,
+	gormDB *gorm.DB,
+	sqlDB *sql.DB,
+	dialect string,
+	dir string,
+) {
+	t.Helper()
+	goose.SetBaseFS(migrationFS)
+	require.NoError(t, goose.SetDialect(dialect))
+	require.NoError(t, goose.UpTo(sqlDB, dir, pagesSourceScanPreviousMigration))
+
+	var previousMaxID uint64
+	require.NoError(t, gormDB.Table("w_schedules").Select("COALESCE(MAX(id), 0)").Scan(&previousMaxID).Error)
+	require.NoError(t, goose.UpTo(sqlDB, dir, pagesSourceScanMigration))
+	seeded := assertPagesSourceScanSchedule(t, gormDB)
+	assert.NotZero(t, seeded.ID)
+	if dialect == dialectPostgres {
+		assert.Greater(t, seeded.ID, previousMaxID)
+	}
+
+	require.NoError(t, goose.DownTo(sqlDB, dir, pagesSourceScanPreviousMigration))
+	assertPagesSourceScanScheduleMissing(t, gormDB)
+
+	custom := model.Schedule{
+		ID:       900001,
+		Name:     "用户保留的 Pages 扫描任务",
+		TaskType: pagesSourceScanTaskType,
+		Cron:     "0 * * * *",
+		Payload:  `{"custom":true}`,
+		IsActive: false,
+	}
+	require.NoError(t, gormDB.Create(&custom).Error)
+	require.NoError(t, goose.UpTo(sqlDB, dir, pagesSourceScanMigration))
+	var schedules []model.Schedule
+	require.NoError(t, gormDB.Where("task_type = ?", pagesSourceScanTaskType).Find(&schedules).Error)
+	require.Len(t, schedules, 1)
+	assert.Equal(t, custom.ID, schedules[0].ID)
+	assert.Equal(t, custom.Name, schedules[0].Name)
+
+	require.NoError(t, goose.DownTo(sqlDB, dir, pagesSourceScanPreviousMigration))
+	var retained model.Schedule
+	require.NoError(t, gormDB.First(&retained, custom.ID).Error)
+	assert.Equal(t, custom.TaskType, retained.TaskType)
+}
+
+func TestPagesSourceScanScheduleMigrationsUseDatabaseGeneratedIDs(t *testing.T) {
+	for _, name := range []string{
+		"goose/postgres/202607190002_seed_pages_source_scan.sql",
+		"goose/sqlite/202607190002_seed_pages_source_scan.sql",
+	} {
+		t.Run(name, func(t *testing.T) {
+			content, err := migrationFS.ReadFile(name)
+			require.NoError(t, err)
+			normalized := strings.ToLower(string(content))
+			assert.NotContains(t, normalized, "insert into w_schedules (id,")
+			assert.NotContains(t, normalized, "coalesce(max(id)")
+		})
+	}
+
+	postgresContent, err := migrationFS.ReadFile("goose/postgres/202607190002_seed_pages_source_scan.sql")
+	require.NoError(t, err)
+	compactPostgres := strings.Join(strings.Fields(strings.ToLower(string(postgresContent))), " ")
+	assert.Contains(
+		t,
+		compactPostgres,
+		"select setval( pg_get_serial_sequence('w_schedules', 'id'), greatest( 1,",
+		"sequence synchronization must retain a valid lower bound for an empty table",
+	)
+}
+
+func assertPagesSourceScanSchedule(t *testing.T, gormDB *gorm.DB) model.Schedule {
+	t.Helper()
+	var schedules []model.Schedule
+	require.NoError(t, gormDB.Where("task_type = ?", pagesSourceScanTaskType).Find(&schedules).Error)
+	require.Len(t, schedules, 1)
+	schedule := schedules[0]
+	assert.Equal(t, "OpenFlare Pages 部署源扫描", schedule.Name)
+	assert.Equal(t, "*/5 * * * *", schedule.Cron)
+	assert.Equal(t, "{}", schedule.Payload)
+	assert.True(t, schedule.IsActive)
+	return schedule
+}
+
+func assertPagesSourceScanScheduleMissing(t *testing.T, gormDB *gorm.DB) {
+	t.Helper()
+	var count int64
+	require.NoError(t, gormDB.Model(&model.Schedule{}).
+		Where("task_type = ?", pagesSourceScanTaskType).
+		Count(&count).Error)
+	assert.Zero(t, count)
+}
diff --git a/internal/task/handlers/register.go b/internal/task/handlers/register.go
index 641d9dca..005bfd9e 100644
--- a/internal/task/handlers/register.go
+++ b/internal/task/handlers/register.go
@@ -53,6 +53,9 @@ func Register() {
 	task.RegisterTaskMeta(openflare.UptimeKumaSyncMeta)
 
 	// pages source actions are only dispatched by the Pages domain API/scanner.
+	task.RegisterHandler(pages.PagesSourceScanTask, &pages.SourceScanHandler{})
+	task.RegisterTaskMeta(pages.PagesSourceScanMeta)
+
 	task.RegisterHandler(pages.PagesSourceActionTask, &pages.SourceActionHandler{})
 	task.RegisterTaskMeta(pages.PagesSourceActionMeta)