feat(api): add backend

routes and WebSockets

services/api/app/models/audio_data.py

@@ -0,0 +1,14 @@
+from sqlalchemy import Boolean, Integer, Float
+from sqlalchemy.dialects.postgresql import TIMESTAMP
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.base import Base
+
+
+class AudioData(Base):
+    __tablename__ = "audio_data"
+
+    time: Mapped[object] = mapped_column(TIMESTAMP(timezone=True), primary_key=True)
+    rms_db: Mapped[float] = mapped_column(Float, nullable=False)
+    frequency_hz: Mapped[int] = mapped_column(Integer, nullable=False)
+    is_silence: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)