Migración completa a librería Reggaeton

Cambios realizados:
- server.py: actualiza PROJECT_SAMPLES_DIR a reggaeton
- sample_manager.py: cambia base_dir a reggaeton + agrega género reggaeton
- health_check.py: actualiza paths a reggaeton
- scan_audio.py: actualiza path a reggaeton
- segment_rag_builder.py: actualiza default library a reggaeton
- reference_stem_builder.py: actualiza PROJECT_SAMPLES_DIR a reggaeton
- song_generator.py: agrega GENRE_CONFIG y SECTION_BLUEPRINT para reggaeton
- rebuild_index.py: actualiza para apuntar a reggaeton

Nueva estructura soportada:
- 1. MIDI CHORDS / 2. MIDI ARP (MIDI files)
- 3. ONE SHOTS / 4. DRUM LOOPS
- 5. FX / 6. IMPACT INTRO / 7. FILL
- 8. KICKS / 9. SNARE / 10. PERCS
- 11. VOCALS
- reggaeton 2/ (bass, drumloops, fx, kick, oneshots, perc, snare)
- SentimientoLatino2025/ (drums, vocals, loops, one shots)

Index rebuilt: 508 samples

AbletonMCP_AI/MCP_Server/song_generator.py

@@ -84,6 +84,12 @@ GENRE_CONFIGS = {
         'keys': ['Am', 'Fm', 'Gm', 'Cm'],
         'styles': ['liquid', 'neuro', 'jump-up', 'jungle'],
     },
+    'reggaeton': {
+        'bpm_range': (90, 100),
+        'default_bpm': 95,
+        'keys': ['Am', 'Dm', 'Gm', 'Cm', 'Fm', 'Em'],
+        'styles': ['dembow', 'perreo', 'moombahton', 'latin-trap', 'romantico'],
+    },
 }
 
 # Colores por tipo de track
@@ -512,6 +518,17 @@ SECTION_BLUEPRINTS = {
         ('PEAK', 8, 32, 'drop', 5),
         ('OUTRO DJ', 16, 8, 'outro', 1),
     ],
+    'reggaeton': [
+        ('INTRO', 8, 12, 'intro', 1),
+        ('PRECORO', 8, 16, 'build', 2),
+        ('CORO A', 16, 28, 'drop', 4),
+        ('VERSEO', 16, 20, 'break', 2),
+        ('PRECORO B', 8, 18, 'build', 3),
+        ('CORO B', 16, 30, 'drop', 5),
+        ('PUENTE', 8, 15, 'break', 1),
+        ('CORO FINAL', 16, 32, 'drop', 5),
+        ('OUTRO', 8, 10, 'outro', 1),
+    ],
 }
 
 SECTION_BLUEPRINT_VARIANTS = {