fix(apify): actor references use username~actorName, not slash

app/stores/apify.py

@@ -55,7 +55,9 @@ class ApifyClient:
     async def run_sync(self, actor: str, run_input: dict, timeout_s: Optional[int] = None) -> List[dict]:
         """Run an actor and collect its default dataset items (capped wait)."""
         deadline = timeout_s or settings.apify_run_timeout_s
-        url = f"/acts/{actor}/run-sync-get-dataset-items"
+        # Apify actor references use "username~actorName" (tilde), not "/".
+        actor_ref = actor.replace("/", "~", 1) if "~" not in actor else actor
+        url = f"/acts/{actor_ref}/run-sync-get-dataset-items"
         params = {"timeout": int(deadline * 1000)}
         res = await self.client().post(url, params=params, json=run_input)
         if res.status_code in (402, 403):
@@ -69,7 +71,8 @@ class ApifyClient:
 
     async def run_async(self, actor: str, run_input: dict) -> Dict[str, str]:
         """Start an actor run; returns {run_id, dataset_id} for polling."""
-        res = await self.client().post(f"/acts/{actor}/runs", json=run_input)
+        actor_ref = actor.replace("/", "~", 1) if "~" not in actor else actor
+        res = await self.client().post(f"/acts/{actor_ref}/runs", json=run_input)
         res.raise_for_status()
         data = res.json().get("data", {})
         return {"run_id": data.get("id"), "dataset_id": data.get("defaultDatasetId")}