Fix naming conflict - fetch_existing vs fetch_existing_categories

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

src/seo/category_proposer.py

@@ -78,7 +78,7 @@ class CategoryProposer:
         self.api_calls = 0
         self.ai_cost = 0.0
         self.use_editorial_strategy = use_editorial_strategy
-        self.fetch_existing_categories = fetch_existing_categories
+        self.fetch_existing = fetch_existing_categories  # Renamed to avoid conflict
         self.site_analysis = {}
         self.existing_categories_by_site = {}  # Fetched from WordPress
         self.sites = Config.WORDPRESS_SITES  # Add sites config
@@ -358,7 +358,7 @@ Return ONLY a JSON array with one object per post."""
         logger.info("="*70 + "\n")
 
         # Fetch existing categories from WordPress
-        if self.fetch_existing_categories:
+        if self.fetch_existing:
             self.fetch_existing_categories()
 
         # Analyze editorial strategy first