write canonical iso3 language metadata, tighten is_noop, store full jellyfin data

ffmpeg now writes -metadata:s:a:i language=<iso3> on every kept audio track so
files end up with canonical 3-letter tags (en → eng, ger → deu, null → und).
analyzer passes stream.profile (not title) to transcodeTarget so lossless
dts-hd ma in mkv correctly targets flac. is_noop also checks og-is-default and
canonical-language so pipeline-would-change-it cases stop showing as done.

normalizeLanguage gains 2→3 mapping, and mapStream no longer normalizes at
ingest so the raw jellyfin tag survives for the canonical check.

per-item scan work runs in a single db.transaction for large sqlite speedups,
extracted into server/services/rescan.ts so execute.ts can reuse it.

on successful job, execute calls jellyfin /Items/{id}/Refresh, waits for
DateLastRefreshed to change, refetches the item, and upserts it through the
same pipeline; plan flips to done iff the fresh streams satisfy is_noop.

schema wiped + rewritten to carry jellyfin_raw, external_raw, profile,
bit_depth, date_last_refreshed, runtime_ticks, original_title, last_executed_at
— so future scans aren't required to stay correct. user must drop data/*.db.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "netfelix-audio-fix",
-	"version": "2026.04.13",
+	"version": "2026.04.13+1",
 	"scripts": {
 		"dev:server": "NODE_ENV=development bun --hot server/index.tsx",
 		"dev:client": "vite",