feat: add acoustic dedupe pipeline and docker runtime

am_deduper/db.py

@@ -32,6 +32,7 @@ CREATE INDEX IF NOT EXISTS idx_fast_hash ON audio_tracks(fast_hash);
 CREATE INDEX IF NOT EXISTS idx_sha256 ON audio_tracks(sha256);
 CREATE INDEX IF NOT EXISTS idx_duration ON audio_tracks(duration);
 CREATE INDEX IF NOT EXISTS idx_status ON audio_tracks(status);
+CREATE INDEX IF NOT EXISTS idx_duration_size ON audio_tracks(duration, file_size);
 """
 
 
@@ -41,5 +42,6 @@ def connect(path: Path) -> sqlite3.Connection:
     conn.row_factory = sqlite3.Row
     conn.execute("PRAGMA journal_mode=WAL")
     conn.execute("PRAGMA foreign_keys=ON")
+    conn.execute("PRAGMA busy_timeout=5000")
     conn.executescript(SCHEMA)
     return conn