Add live introdb key reload and recap playback markers

- reload introdb API key on setting updates
- support recap/preview markers in playback and next-episode flow
- add profile defaults for recap and preview auto-play settings

internal/api/handlers/admin.go

@@ -90,6 +90,7 @@ type AdminHandler struct {
 	BootstrapSensitiveConfigured map[string]bool
 	BootstrapSensitiveValues     map[string]string
 	OnUserSessionsRevoked        func(ctx context.Context, userID int)
+	OnServerSettingUpdated       func(ctx context.Context, key, value string)
 }
 
 // NewAdminHandler creates a new AdminHandler backed by the given
@@ -1022,6 +1023,7 @@ var sensitiveSettingKeys = map[string]bool{
 	"recommendations.openai_api_key":       true,
 	"recommendations.embedding_auth_token": true,
 	"tmdb.api_key":                         true,
+	"introdb.api_key":                      true,
 	"mdblist.api_key":                      true,
 	"watchsync.trakt.client_id":            true,
 	"watchsync.trakt.client_secret":        true,
@@ -1890,7 +1892,10 @@ func (h *AdminHandler) HandleUpdateSetting(w http.ResponseWriter, r *http.Reques
 
 	if h.EventBus != nil {
 		_ = h.EventBus.Publish(r.Context(), cache.ChannelAdmin,
-			cache.Event{Type: cache.EventSettingsChanged})
+			cache.Event{Type: cache.EventSettingsChanged, Payload: key})
+	}
+	if h.OnServerSettingUpdated != nil {
+		h.OnServerSettingUpdated(r.Context(), key, req.Value)
 	}
 
 	if sensitiveSettingKeys[key] {

internal/api/handlers/playback_lazy_markers.go

@@ -38,9 +38,6 @@ func (h *PlaybackHandler) maybeQueueLazyPlaybackMarkers(
 	if h == nil || session == nil || file == nil || file.ID <= 0 {
 		return
 	}
-	if hasOnlineSourcedMarkers(file) {
-		return
-	}
 	if file.MediaFolderID <= 0 {
 		return
 	}
@@ -87,6 +84,9 @@ func (h *PlaybackHandler) maybeQueueLazyPlaybackMarkers(
 	hasOnline := h.hasOnlineMarkerProviders()
 	shouldRunLocal := markers.ShouldRunLocal(mode)
 	shouldRunOnline := (mode == markers.ModeOnline || mode == markers.ModeBoth) && hasOnline
+	if shouldRunOnline && hasOnlineSourcedMarkers(file) {
+		shouldRunOnline = false
+	}
 
 	if shouldRunOnline {
 		// Online providers work for any enabled library (movies and series alike).
@@ -184,7 +184,9 @@ func (h *PlaybackHandler) runLazyPlaybackMarkers(
 		if wrote {
 			if refreshed := h.reloadPlaybackMarkerFile(ctx, file.ID); hasAnyMarker(refreshed) {
 				h.notifyPlaybackMarkers(ctx, sessionID, refreshed, mode)
-				return
+				if !runLocal || hasLocalDetectionMarkers(refreshed) {
+					return
+				}
 			}
 		}
 	}
@@ -193,7 +195,9 @@ func (h *PlaybackHandler) runLazyPlaybackMarkers(
 	// before falling through to the (expensive) local analyzer.
 	if refreshed := h.reloadPlaybackMarkerFile(ctx, file.ID); hasAnyMarker(refreshed) {
 		h.notifyPlaybackMarkers(ctx, sessionID, refreshed, mode)
-		return
+		if !runLocal || hasLocalDetectionMarkers(refreshed) {
+			return
+		}
 	}
 
 	if runLocal {
@@ -355,6 +359,14 @@ func hasAnyMarker(file *models.MediaFile) bool {
 		(file.PreviewStart != nil && file.PreviewEnd != nil)
 }
 
+func hasLocalDetectionMarkers(file *models.MediaFile) bool {
+	if file == nil {
+		return false
+	}
+	return (file.IntroStart != nil && file.IntroEnd != nil) ||
+		(file.CreditsStart != nil && file.CreditsEnd != nil)
+}
+
 // markerUpdateFromPayload adapts the generic markers.MarkerUpdatePayload to
 // the scanner.MarkerUpdate shape consumed by FileRepository.UpsertMarkers.
 // Kept narrow on purpose — the packages it bridges should not need to import

internal/api/router.go

@@ -131,6 +131,7 @@ type Dependencies struct {
 	ChapterThumbnailQueuer catalog.ChapterThumbnailQueuer
 	PlaybackRealtimeHub    *playback.RealtimeHub
 	OnUserSessionsRevoked  func(ctx context.Context, userID int)
+	OnServerSettingUpdated func(ctx context.Context, key, value string)
 
 	// UserCollectionSync handles per-profile imported collections (TMDB /
 	// Trakt / MDBList) — the user-facing analogue of CollectionService.
@@ -628,6 +629,9 @@ func NewRouter(deps Dependencies) chi.Router {
 		if deps.OnUserSessionsRevoked != nil {
 			adminHandler.OnUserSessionsRevoked = deps.OnUserSessionsRevoked
 		}
+		if deps.OnServerSettingUpdated != nil {
+			adminHandler.OnServerSettingUpdated = deps.OnServerSettingUpdated
+		}
 	}
 	if deps.DB != nil {
 		jobRepo := adminjob.NewRepository(deps.DB)