feat(audiobooks): A2 — narrator metadata, audio-aware UX, player polish, bookmarks

A2a (metadata round): narrators TEXT[] + narrators_search (tags
pattern: accumulator + GIN pairs) + abridged bool on media_items;
scanner fills from the Libation/ABS sidecar (narrators verbatim,
abridged flag) with audio-payload promotion; editorial fields ride
the real columns while audio_metadata stays scan-derived (duration/
codec/chapters). Detail/edit/save paths carry the fields; the web
edit dialog grows an Audio section (Narrator(s) comma-input, Abridged
toggle, scanned duration read-only); search weights + narrator filter
(word_similarity over narrators_search) + narrator autocomplete added.

A2c (per-media-type wording): copy helpers keyed on format_group —
Listen Now, Mark Complete/Not Complete, Listening Progress, Your
Listening Stats, Time Listening, Time listened (pages tile swapped for
audio), Position H:MM:SS / total H:MM:SS on detail + progress pages
(duration parsed from audio_metadata). Dashboard: system collections
swap to Continue Listening / Recently Listened at DISPLAY time when
the audiobooks library is selected (stored names unchanged; restores
keep working); week card = Listening Time / Sessions / Books Touched;
cover-corner badges identify audiobook (headphones) / comic / manga
cards on mixed grids — books stay unbadged; hover action icon follows
the media type.

A2b (player): the scrubber binds value to the playhead with an explicit
scrub guard (the handle previously froze at its initial max); header
row = reader-style back arrow + Chapter n/total launcher; chapters
open in a floating top-down drawer (current chapter highlighted, page
never shifts); Skip/Speed rows share one label-left layout; honest
wall-clock session accounting (playing-only deltas, paused flush).

A2d (bookmarks): note-bearing time bookmarks ride the existing
media_bookmarks substrate (notes column + sync-aware service already
there) — audio locator convention audio:<seconds>, chapter_number
filled, auto-title '<chapter> — H:MM:SS', capture popover with optional
note, drawer with jump/edit-note/delete. Zero server changes needed.

Verified live on the Libation sample: narrators backfilled by rescan;
PUT edit persisted + overrides detected (narrators, abridged); force
rescan preserved the user edit; reset-to-scanned-of-defaults restored
truth; narrator filter/autocomplete scoped by library; dashboard
listsening wording + badges render; bookmark save with note deduped to
one row.

internal/services/media_scanner.go

@@ -93,6 +93,12 @@ type MediaMetadata struct {
 	// Audiobook fields (media_items.audio_metadata JSONB — only the
 	// audio paths read it; see media_scanner_audio.go)
 	AudioMeta *AudioMetadataPayload
+
+	// Narrators/abridged land in real media_items columns (A2a): the
+	// editorial surface of audiobooks (edit form, filters, search),
+	// while AudioMeta stays scan-derived.
+	Narrators []string
+	Abridged  bool
 }
 
 type HashInfo struct {
@@ -941,6 +947,9 @@ func (s *MediaScanner) processMediaFile(ctx context.Context, path string) (bool,
 		DatePublished:      pgtype.Date{Time: metadata.PublishDate, Valid: !metadata.PublishDate.IsZero()},
 		Contributors:       metadata.Contributors,
 		ContributorsSearch: contributorsSearch,
+		Narrators:          metadata.Narrators,
+		NarratorsSearch:    utils.NormalizeNarratorsSearch(metadata.Narrators),
+		Abridged:           metadata.Abridged,
 		Tags:               metadata.Tags,
 		TagsSearch:         tagsSearch,
 		AddedByAdminID:     s.adminID,
@@ -1095,6 +1104,8 @@ func extractAudiobookshelfSidecar(path string) *MediaMetadata {
 		Title         string          `json:"title"`
 		Subtitle      string          `json:"subtitle"`
 		Authors       []string        `json:"authors"`
+		Narrators     []string        `json:"narrators"`
+		Abridged      *bool           `json:"abridged"`
 		Series        json.RawMessage `json:"series"`
 		Genres        []string        `json:"genres"`
 		Tags          []string        `json:"tags"`
@@ -1173,6 +1184,14 @@ func extractAudiobookshelfSidecar(path string) *MediaMetadata {
 	if sidecar.ASIN != nil {
 		metadata.ASIN = strings.TrimSpace(*sidecar.ASIN)
 	}
+	// Audiobook editorial facts land in the real columns (A2a):
+	// narrators verbatim (display), abridged as the Libation/Audible flag.
+	if len(sidecar.Narrators) > 0 {
+		metadata.Narrators = sidecar.Narrators
+	}
+	if sidecar.Abridged != nil {
+		metadata.Abridged = *sidecar.Abridged
+	}
 	if sidecar.Language != nil {
 		metadata.Language = strings.TrimSpace(*sidecar.Language)
 	}
@@ -3191,6 +3210,9 @@ func (s *MediaScanner) updateMediaItem(ctx context.Context, existing database.Me
 		CoverImagePath:     pgtype.Text{String: s.getRelativePath(metadata.CoverPath), Valid: metadata.CoverPath != ""},
 		Series:             pgtype.Text{String: metadata.Series, Valid: metadata.Series != ""},
 		SeriesNumber:       pgtype.Int4{Int32: metadata.SeriesNumber, Valid: metadata.SeriesNumber > 0},
+		Narrators:          metadata.Narrators,
+		NarratorsSearch:    utils.NormalizeNarratorsSearch(metadata.Narrators),
+		Abridged:           metadata.Abridged,
 		Tags:               metadata.Tags,
 		TagsSearch:         tagsSearch,
 		Asin:               pgtype.Text{String: metadata.ASIN, Valid: metadata.ASIN != ""},