Albums in the Rust edge, and the batch-counter rule (design 3)

A release the window closed on with one file named by its stem or post, the
name with a number and no archive, volume, sidecar or random name, waits in
the album of its poster and template (the name's digit runs as #, the
extension apart) posted within the window of the album's first file; the
album closes a window after that span and is written as one release
(source album, no file total) named by the members' shared numbers, a lone
member as the release it was. The batch store writes an album's member
names as release_texts kind 6 (member). A counter total of 100 or more under
which one poster started 20 or more releases is a batch counter: those
releases get no file total.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

tests/functional/batch_store.spec.ts

@@ -487,6 +487,45 @@ test.group('BatchStore', (group) => {
     assert.notEqual(rows[0].release_key, rows[1].release_key)
   })
 
+  test("an album's members stay findable by their own names (release_texts kind member)", async ({
+    assert,
+  }) => {
+    const { rangeId, nodeId } = await rangeIn(GROUP, 1)
+    // Two scans the TypeScript indexer puts under their subject; the Rust edge's album of them is the same chunk
+    // with its name and source.
+    const batch = batchOf(GROUP, 1, [
+      ...upload(10, 'Scan_001.dat', 1, 'Some Scans [1/2]', '2026-10-05T10:00:00Z'),
+      ...upload(20, 'Scan_002.dat', 1, 'Some Scans [2/2]', '2026-10-05T10:01:00Z'),
+    ])
+    assert.lengthOf(batch.releases, 1)
+    const album: ReleaseChunk = {
+      ...batch.releases[0],
+      name: 'Scan_#.dat',
+      source: 'album',
+      fileTotal: null,
+    }
+    const stored = await BatchStore.store(rangeId, nodeId, { ...batch, releases: [album] })
+    assert.include(stored, { releases: 1, newReleases: 1 })
+    const release = await db.from('releases').firstOrFail()
+    assert.include(release, {
+      name: 'Scan_#.dat',
+      source: 6,
+      files: 2,
+      file_total: null,
+      complete: null,
+    })
+    assert.deepEqual(
+      (
+        await db.from('release_texts').where('release_id', release.id).orderBy(['kind', 'text'])
+      ).map((t) => [t.kind, t.text]),
+      [
+        [1, 'Scan_#.dat'],
+        [6, 'Scan_001.dat'],
+        [6, 'Scan_002.dat'],
+      ]
+    )
+  })
+
   test('a small release of sidecars only is marked for the sidecar fold', async ({ assert }) => {
     await storeIn(GROUP, 1_000_000, [
       ...upload(1_000_000, 'Murdoch Mysteries S8D1.nzb', 1, '[00/80]', '2026-10-05T10:00:00Z'),