pipeline ux: actionable errors, inbox sorting, danger stop buttons, overlapping checkmarks

- clickable error count in header shows file names + error messages
- inbox sort dropdown (scan time / name, asc / desc)
- inbox movies no longer minimal (show available badges)
- stop buttons use solid danger style, descriptive labels (Stop Scan, Stop Job, Stop Sorting)
- double checkmarks overlap like WhatsApp read receipts
- processInbox logs start/completion to stdout for Docker visibility
- fix byTitle in language-resolver test, bump to 2026.04.21.1

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

server/api/__tests__/execute-clear.test.ts

@@ -14,9 +14,7 @@ function makeDb(): Database {
 
 function seedQueuedItem(db: Database, id: number, autoClass: "auto" | "auto_heuristic" | "manual") {
 	db
-		.prepare(
-			"INSERT INTO media_items (id, type, name, file_path, container) VALUES (?, 'Movie', ?, ?, 'mkv')",
-		)
+		.prepare("INSERT INTO media_items (id, type, name, file_path, container) VALUES (?, 'Movie', ?, ?, 'mkv')")
 		.run(id, `Item ${id}`, `/x/${id}.mkv`);
 	db
 		.prepare(