refactor: modularize API routes into separate files and clean up dependencies

decnet/web/router/fleet/api_mutate_interval.py

@@ -0,0 +1,21 @@
+from fastapi import APIRouter, Depends, HTTPException
+
+from decnet.config import load_state, save_state
+from decnet.web.dependencies import get_current_user
+from decnet.web.models import MutateIntervalRequest
+
+router = APIRouter()
+
+
+@router.put("/deckies/{decky_name}/mutate-interval", tags=["Fleet Management"])
+async def api_update_mutate_interval(decky_name: str, req: MutateIntervalRequest, current_user: str = Depends(get_current_user)) -> dict[str, str]:
+    state = load_state()
+    if not state:
+        raise HTTPException(status_code=500, detail="No active deployment")
+    config, compose_path = state
+    decky = next((d for d in config.deckies if d.name == decky_name), None)
+    if not decky:
+        raise HTTPException(status_code=404, detail="Decky not found")
+    decky.mutate_interval = req.mutate_interval
+    save_state(config, compose_path)
+    return {"message": "Mutation interval updated"}