Restruct files, prepare for next feature

src/main.py

@@ -0,0 +1,23 @@
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI
+
+from src.recorder.poo import PooRecorder
+
+recorder = PooRecorder()
+
+
+@asynccontextmanager
+async def _lifespan(_app: FastAPI):  # noqa: ANN202
+    await recorder.start()
+    yield
+    await recorder.stop()
+
+
+app = FastAPI(lifespan=_lifespan)
+
+
+@app.put("/record/s={status}")
+async def record(status: str) -> dict:
+    await recorder.record(status)
+    return {"status": status}