feat: Phase 3 AI Radio (DJ Host & interleaved playlist) and Like/Dislike/Delete actions

- Add Like button: promotes wave track to permanent library and refills buffer
- Add Dislike button: blacklists track in SQLite disliked_tracks, removes audio, refills buffer
- Add Delete button in history table for library file removal
- Add AI Radio module: wttr.in weather, Qwen 2.5 host monologues, speech synthesis, ID3 tags
- Generate interleaved 'AI Радио.m3u8' alongside clean 'Моя Волна.m3u8'
- Update Web UI with Radio DJ card, voice selection, and track actions

app/config.py

@@ -28,6 +28,12 @@ class Settings(BaseSettings):
     WAVE_AUTO_ROTATE_HOURS: int = 6
     WAVE_CANDIDATE_POOL: int = 40
 
+    # AI Radio DJ Settings
+    RADIO_ENABLED: bool = True
+    RADIO_VOICE: str = "ru-RU-DmitryNeural"
+    WEATHER_CITY: str = ""
+    RADIO_INTRO_INTERVAL: int = 2
+
     class Config:
         env_file = ".env"
         env_file_encoding = "utf-8"