feat(subsonic): wire contextual_likes capture/soft-delete into star/unstar

handleStar's track branch calls playevents.CaptureContextualLikeIfPlaying
when the underlying LikeTrack actually inserted a row. handleUnstar
calls SoftDeleteContextualLikes after every track-id unstar. Same
helpers as the api surface — single source of truth.

mediaHandlers struct gains a logger field threaded through Mount.

internal/subsonic/star.go

@@ -9,6 +9,7 @@ import (
 	"github.com/jackc/pgx/v5/pgtype"
 
 	"git.fabledsword.com/bvandeusen/minstrel/internal/db/dbq"
+	"git.fabledsword.com/bvandeusen/minstrel/internal/playevents"
 )
 
 // handleStar implements /rest/star. Accepts any combination of id (track),
@@ -38,10 +39,14 @@ func (m *mediaHandlers) handleStar(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	if trackID.Valid {
-		if _, err := q.LikeTrack(r.Context(), dbq.LikeTrackParams{UserID: user.ID, TrackID: trackID}); err != nil {
+		rows, err := q.LikeTrack(r.Context(), dbq.LikeTrackParams{UserID: user.ID, TrackID: trackID})
+		if err != nil {
 			WriteFail(w, r, ErrGeneric, "Could not star track")
 			return
 		}
+		if rows == 1 {
+			_ = playevents.CaptureContextualLikeIfPlaying(r.Context(), q, user.ID, trackID, m.logger)
+		}
 	}
 	if albumID.Valid {
 		if err := q.LikeAlbum(r.Context(), dbq.LikeAlbumParams{UserID: user.ID, AlbumID: albumID}); err != nil {
@@ -71,6 +76,7 @@ func (m *mediaHandlers) handleUnstar(w http.ResponseWriter, r *http.Request) {
 	q := dbq.New(m.pool)
 	if t, ok := parseUUID(params.Get("id")); ok {
 		_ = q.UnlikeTrack(r.Context(), dbq.UnlikeTrackParams{UserID: user.ID, TrackID: t})
+		_ = playevents.SoftDeleteContextualLikes(r.Context(), q, user.ID, t)
 	}
 	if a, ok := parseUUID(params.Get("albumId")); ok {
 		_ = q.UnlikeAlbum(r.Context(), dbq.UnlikeAlbumParams{UserID: user.ID, AlbumID: a})