Hidden archive entries no longer name releases

One poster adds the same 22 GB hidden '.1917-….mkv' decoy to every 7z
upload; the largest-entry rule named 840 releases after it. Entries with
a hidden path part are skipped; release:rename --hidden renames the
existing ones from their stored listing.

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

tests/unit/rar.spec.ts

@@ -211,6 +211,19 @@ test.group('rar / release naming from contents', () => {
     assert.isUndefined(releaseNameFromContents(info(['Xq8r2KdLm3Zw91Pq/x.mkv'])))
   })
 
+  test('hidden entries (a decoy) name nothing', async ({ assert }) => {
+    const { releaseNameFromContents, isHidden } = await import('#services/ArchiveService')
+    const decoy = '.1917-2019-2160p_MA_WEB-DL_Hybrid_H265_DV_HDR_DDP_Atmos_5.1_English-HONE-.mkv'
+    const listing = info([decoy, 'Boston_Blue_S01E02_1080p_AMZN_WEB-DL_DDP5_1_H_264-FLUX', `${decoy}/${decoy}.19OMnL`, 'Boston_Blue_S01E02_1080p_AMZN_WEB-DL_DDP5_1_H_264-FLUX/boston.blue.s01e02.rar'])
+    listing.entries[0].directory = true
+    listing.entries[1].directory = true
+    listing.entries[2].size = 22_093_429_730
+    assert.equal(releaseNameFromContents(listing), 'Boston_Blue_S01E02_1080p_AMZN_WEB-DL_DDP5_1_H_264-FLUX')
+    assert.isTrue(isHidden(`${decoy}/x.mkv`))
+    assert.isTrue(isHidden('dir/.hidden.mkv'))
+    assert.isFalse(isHidden('Some.Release/movie.mkv'))
+  })
+
   test('recognises obfuscated names', async ({ assert }) => {
     const { looksRandom } = await import('#services/ArchiveService')
     assert.isTrue(looksRandom('CGBWgdhlSCAOAW62gLWRRM'))