Release completeness: note only releases where it can change; names from files

A sweep checked 430k noted releases in 51 minutes, nearly all without a
par2 listing or file total, where completeness can't change. Listed names
are now matched against the files themselves rather than through
binaries, which seeding mostly no longer creates.

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

tests/functional/release_complete.spec.ts

@@ -45,9 +45,34 @@ test.group('release completeness', (group) => {
     const row = await db.from('releases').where('id', id).first()
     assert.equal(Number(row.file_count), 3)
     assert.deepEqual(row.extensions, ['bin'])
-    // Noted for the completeness sweep once, not per file.
+    // No par2 listing, no file total, not complete: its completeness can't change, so it isn't noted.
+    const [{ count }] = await db.from('release_dirty').where('release_id', id).count('* as count')
+    assert.equal(Number(count), 0)
+  })
+
+  test('a release with a par2 listing is noted once per insert, and complete by file names alone', async ({ assert }) => {
+    const now = new Date()
+    const [row] = await db
+      .table('releases')
+      .insert({ release_key: 'names-only'.padEnd(40, '0'), name: 'Names.Only', source: 'stem', groups: '[]', first_seen_at: now, last_seen_at: now })
+      .returning('id')
+    const id = Number(row.id)
+    await db.rawQuery(
+      `INSERT INTO release_files (release_id, par2_file_id, name, size, md5_16k, set_id)
+       SELECT ?::bigint, md5(i::text), 'n' || i || '.rar', 100000 + i, md5(i::text), 'set' FROM generate_series(1, 3) i`,
+      [id]
+    )
+    await ReleaseCompleteness.sweep()
+    // Seeded files: no binaries, matched by name only.
+    await db.rawQuery(
+      `INSERT INTO files (filename, poster, date, parts, groups, segments, release_id, file_key, created_at, updated_at)
+       SELECT 'n' || i || '.rar', 'x', 0, 1, '[]', '\\x'::bytea, ?::bigint, 'names-only-' || i, now(), now() FROM generate_series(1, 3) i`,
+      [id]
+    )
     const [{ count }] = await db.from('release_dirty').where('release_id', id).count('* as count')
     assert.equal(Number(count), 1)
+    await ReleaseCompleteness.sweep()
+    assert.isTrue(Boolean((await db.from('releases').where('id', id).first()).complete))
   })
 
   test('complete when every listed file of 64 KiB or more is there, by size or name', async ({ assert }) => {