fix(cron): cap Albina album at 6 tracks (subset rotatie)

_build_album_tracks('ALBINA_BONDAR') intoarnea toate cele 24 de concepte
din catalog -> album planificat ~4h care arde toata cota ZeroGPU zilnica
(observat live: 9 piese pana la epuizare). Acum foloseste
build_albina_tracks(count=6): subset rotit, fara repetare.
Test de regresie adaugat (cap + fara duplicate).

moldovan-qwen/scripts/daily_album_cron.py

@@ -43,6 +43,7 @@ from typing import Any, Dict, List, Optional
 from engine.albina_bondar import (
     ALBINA_GENRE_DISTRIBUTION,
     ALBINA_BONDAR_TRACKS,
+    build_albina_tracks,
     pick_albina_weighted_genre,
 )
 
@@ -115,9 +116,9 @@ RANDOM_TRACKS = [
 def _build_album_tracks(genre_key: str) -> List[Dict[str, Any]]:
     """Select tracks for the given genre key (shuffled so albums vary)."""
     if genre_key == "ALBINA_BONDAR":
-        pool = [dict(t) for t in ALBINA_BONDAR_TRACKS]
-        random.shuffle(pool)
-        return pool
+        # Catalogul are 24 concepte; un album Albina ia un subset rotit de 6
+        # (fara repetare) ca sa incapa in fereastra de cota ZeroGPU zilnica.
+        return build_albina_tracks(count=6)
     elif genre_key == "MOLDOVAN_QWEN":
         pool = [dict(t) for t in MOLDOVAN_QWEN_TRACKS]
         random.shuffle(pool)

tests/unit/test_daily_album_cron.py

@@ -173,3 +173,15 @@ def test_audio_segment_chaining_duration(tmp_path):
     assert duration_sec >= 115.0, f"Expected chained duration >= 115s, got {duration_sec}s"
     assert out_mp3.exists()
     assert out_mp3.stat().st_size > 500000
+
+
+def test_albina_album_tracks_capped_at_six():
+    """Regression: _build_album_tracks('ALBINA_BONDAR') intoarnea toate 24
+    de concepte -> album de ~4h care ardea toata cota ZeroGPU. Un album
+    Albina trebuie sa ia un subset rotit de 6, fara repetare."""
+    from daily_album_cron import _build_album_tracks
+
+    tracks = _build_album_tracks("ALBINA_BONDAR")
+    assert len(tracks) == 6, f"expected 6 tracks, got {len(tracks)}"
+    titles = [t["title"] for t in tracks]
+    assert len(set(titles)) == len(titles), "no repeats inside one album"