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.

database/schema/schema.sql

@@ -146,6 +146,8 @@ CREATE TABLE IF NOT EXISTS media_items (
     series VARCHAR(255),
     series_number INTEGER,
     tags TEXT[],
+    narrators TEXT[], -- Audiobook narrators (sidecar first; user-editable)
+    abridged BOOLEAN NOT NULL DEFAULT FALSE, -- Libation/Audible abridged flag
     asin VARCHAR(20), -- Still relevant for ebooks
     date_published DATE,
     publisher VARCHAR(255),
@@ -255,6 +257,13 @@ CREATE INDEX IF NOT EXISTS idx_media_items_contributors_gin ON media_items USING
 ALTER TABLE media_items ADD COLUMN IF NOT EXISTS tags_search TEXT[];
 ALTER TABLE media_items ADD COLUMN IF NOT EXISTS contributors_search TEXT[];
 
+-- Audiobook editorial facts (A2a): narrators are user-editable first-class
+-- (search/filter/badge surface); abridged rides along; audio_metadata keeps
+-- the scan-derived tech record (duration/codec/chapters).
+ALTER TABLE media_items ADD COLUMN IF NOT EXISTS narrators TEXT[] NOT NULL DEFAULT '{}';
+ALTER TABLE media_items ADD COLUMN IF NOT EXISTS narrators_search TEXT[] NOT NULL DEFAULT '{}';
+ALTER TABLE media_items ADD COLUMN IF NOT EXISTS abridged BOOLEAN NOT NULL DEFAULT FALSE;
+
 -- Per-field user-override tracking (idempotent backfill for existing
 -- installs; the column is also declared in the media_items table
 -- definition above for fresh databases)
@@ -268,6 +277,8 @@ CREATE INDEX IF NOT EXISTS idx_media_items_archived ON media_items (archived_at)
 -- Create GIN indexes for fast search field searches
 CREATE INDEX IF NOT EXISTS idx_media_items_tags_search ON media_items USING GIN (tags_search);
 CREATE INDEX IF NOT EXISTS idx_media_items_contributors_search ON media_items USING GIN (contributors_search);
+CREATE INDEX IF NOT EXISTS idx_media_items_narrators ON media_items USING GIN (narrators);
+CREATE INDEX IF NOT EXISTS idx_media_items_narrators_search ON media_items USING GIN (narrators_search);
 
 -- Drop existing triggers if exists. Both must be dropped BEFORE the function:
 -- dropping a function that triggers still reference fails (SQLSTATE 2BP01),