Fix: Handle datasets with no README.md

Create new DatasetCard when no existing card is found instead of failing.

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Co-Authored-By: Claude Opus 4.5 <[email protected]>

.beads/issues.jsonl

@@ -1,3 +1,3 @@
-{"id":"dataset-card-drafter-a69","title":"Add pending queue for datasets with viewer not ready","description":"","status":"in_progress","priority":1,"issue_type":"feature","created_at":"2025-12-15T18:00:44.18695Z","updated_at":"2025-12-15T18:00:50.025261Z"}
+{"id":"dataset-card-drafter-a69","title":"Add pending queue for datasets with viewer not ready","description":"","status":"closed","priority":1,"issue_type":"feature","created_at":"2025-12-15T18:00:44.18695Z","updated_at":"2025-12-15T18:06:00.964121Z","closed_at":"2025-12-15T18:06:00.964121Z","close_reason":"Added pending queue with background retry and UI tab"}
 {"id":"dataset-card-drafter-ebu","title":"Add PR deduplication logic","description":"Multiple PRs being opened for same dataset. Need to check for existing open PRs before creating new ones.","status":"closed","priority":1,"issue_type":"bug","created_at":"2025-12-15T17:43:02.474669Z","updated_at":"2025-12-15T17:48:03.770007Z","closed_at":"2025-12-15T17:48:03.770007Z","close_reason":"Added has_existing_pr() check using get_repo_discussions + improved PR description"}
 {"id":"dataset-card-drafter-wbd","title":"MVP implementation: WebhooksServer + DatasetCard + InferenceClient","description":"","status":"closed","priority":1,"issue_type":"feature","created_at":"2025-12-15T17:24:36.365733Z","updated_at":"2025-12-15T17:28:21.127763Z","closed_at":"2025-12-15T17:28:21.127763Z","close_reason":"MVP implemented with WebhooksServer, DatasetCard, and InferenceClient"}

app.py

@@ -150,11 +150,13 @@ async def process_dataset(dataset_id: str, inference_token: str, pr_token: str)
         remove_from_pending(dataset_id)  # Clean up if it was pending
         return {"status": "skipped", "reason": "open PR already exists"}
 
-    # Load current card
+    # Load current card (or create new if none exists)
     try:
         card = DatasetCard.load(dataset_id)
-    except Exception as e:
-        return {"status": "error", "reason": f"card load failed: {e}"}
+    except Exception:
+        # No README exists - create a new card
+        card = DatasetCard("")
+        logger.info(f"No existing card for {dataset_id}, creating new one")
 
     # Check if description needed
     if not should_generate(card):