Remove categories param from search route

app.py

@@ -349,11 +349,11 @@ def _patched_create_app(blocks, **kwargs):
         return JSONResponse({**API_SPECS, "runtime": _get_runtime_specs()})
 
     @fa_app.get("/respite/search")
-    def _search(q: str = "", categories: str = "general", max_results: int = 10):
+    def _search(q: str = "", max_results: int = 10):
         if not q:
             return JSONResponse({"error": "Missing query parameter 'q'"}, status_code=400)
         try:
-            results = _search_web(q, categories=categories, max_results=max_results)
+            results = _search_web(q, max_results=max_results)
             return JSONResponse(results)
         except Exception as e:
             return JSONResponse({"error": str(e)}, status_code=502)