Return JSON for resume route failures

backend/app/routers/strategy.py

@@ -1,4 +1,5 @@
-from fastapi import APIRouter, Query, Request
+from fastapi import APIRouter, HTTPException, Query, Request
+from fastapi.responses import JSONResponse
 from app.models import StrategyStartRequest
 from app.services.strategy_service import (
     start_strategy,
@@ -26,8 +27,20 @@ def stop(request: Request):
 
 @router.post("/strategy/resume")
 def resume(request: Request):
-    user_id = get_request_user_id(request)
-    return resume_strategy(user_id)
+    try:
+        user_id = get_request_user_id(request)
+        return resume_strategy(user_id)
+    except HTTPException:
+        raise
+    except Exception as exc:
+        print(f"[STRATEGY] unhandled resume route failure: {exc}", flush=True)
+        return JSONResponse(
+            status_code=200,
+            content={
+                "status": "resume_failed",
+                "message": f"Unable to resume strategy: {exc}",
+            },
+        )
 
 @router.get("/strategy/status")
 def status(request: Request):