fix(business-anchor): do not filter prompts when no keyphrases present

Author: fyne-coder

api/nodes/new_pipeline/business_anchor_guard.py

@@ -1,13 +1,17 @@
 from api.nodes.fetch_summary_node import Node
 
 @Node(retries=1)
-def BusinessAnchorGuard(prompts: list[str], keyphrases: list[str]) -> list[str]:
+def BusinessAnchorGuard(prompts, keyphrases: list[str]):
     """
     Keep prompts that mention at least one scraped key-phrase.
     If no key-phrases were extracted, return an empty list.
     """
     if not keyphrases:
-        return []
+        # No keyphrases: do not filter; return original prompts
+        return prompts
+    # If grouped dict, apply per category
+    if isinstance(prompts, dict):
+        return {cat: BusinessAnchorGuard(items, keyphrases) for cat, items in prompts.items()}
 
     lowered_phrases = [kp.lower() for kp in keyphrases]
     anchored = [