Par2 size matching 100x faster; release bookkeeping once per statement

matchPar2Releases checked every same-size release_files row's set and
date (18 s per batch of body-derived binaries); now an index on
release_files (release_id, size) drops the repeated sizes first: 0.16 s.

File inserts updated their release in four row triggers; one statement
trigger now updates each release once per INSERT. Completeness is noted
in release_dirty and recomputed by gc:scheduler every 30 minutes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/functional/web_api.spec.ts

@@ -1,4 +1,5 @@
 import { test } from '@japa/runner'
+import ReleaseCompleteness from '#services/ReleaseCompleteness'
 import db from '@adonisjs/lucid/services/db'
 import FileStore from '#services/FileStore'
 import testUtils from '@adonisjs/core/services/test_utils'
@@ -89,9 +90,12 @@ test.group('Web API', (group) => {
     response.assertBodyContains({ sources: [] })
   })
 
-  test('completeness follows files and par2 lists through triggers', async ({ assert }) => {
+  test('completeness follows files and par2 lists (triggers note releases, the sweep recomputes)', async ({ assert }) => {
     const now = new Date()
-    const complete = async (id: number) => (await db.from('releases').where('id', id).first()).complete
+    const complete = async (id: number) => {
+      await ReleaseCompleteness.sweep()
+      return (await db.from('releases').where('id', id).first()).complete
+    }
     const file = (releaseId: number, name: string) => ({
       filename: name, poster: 'p', date: now.getTime(), parts: 1, size: 100_000, release_id: releaseId,
       groups: '[]', segments: [], created_at: now, updated_at: now,