fix: strengthen entity filtering for ad/business content

- Add marketing metadata to 'Not allowed' list in ontology prompt
- Strengthen exclude_self filter instruction
- Add exclude_rules support from template filter rules
- Update business_ad template with more excluded types

backend/app/services/ontology_generator.py

@@ -53,6 +53,9 @@ Therefore, **entities must be real-world subjects that can speak and interact on
 - Abstract concepts (such as "public opinion", "emotion", "trend")
 - Topics/subjects (such as "academic integrity", "education reform")
 - Viewpoints/attitudes (such as "supporters", "opponents")
+- Marketing/advertising metadata (such as "campaign name", "ad position", "ad channel", "ad format", "brand name")
+- The entity that created the uploaded content (e.g., if the data is an ad, do NOT create an entity for the advertiser/brand)
+- Non-human concepts that cannot speak or interact on social media
 
 ## Output Format
 
@@ -221,14 +224,21 @@ class OntologyGenerator:
             
             if exclude_self:
                 filter_instruction += (
-                    "- IMPORTANT: The uploaded data is from a business/brand/advertiser. "
-                    "Do NOT create entity types for the business/brand that created this content. "
-                    "Only create entities for the TARGET AUDIENCE, competitors, influencers, media, etc.\n"
+                    "- CRITICAL: The uploaded data is from a business/brand/advertiser. "
+                    "Do NOT create entity types for: the business itself, its brand name, campaign names, "
+                    "ad positions, ad channels, ad formats, or any marketing metadata. "
+                    "ONLY create entity types for real people/organizations who would REACT to this content: "
+                    "target audience segments, competitors, influencers, media outlets, consumer groups.\n"
                 )
             
             if exclude_types:
                 filter_instruction += f"- Do NOT create entity types matching: {', '.join(exclude_types)}\n"
             
+            # Add custom exclude rules from template
+            exclude_rules = template_filter_rules.get('exclude_rules', [])
+            for rule in exclude_rules:
+                filter_instruction += f"- {rule}\n"
+            
             if focus:
                 filter_instruction += f"- Focus entity types on: {focus}\n"