Fix Integration Tests: Dependencies, Config und Bugs

- test.sh: .venv Support und verbesserte API Key Erkennung
- test_integration.py: Cleanup Logik repariert (Duplicate Token)
- docker-compose.yml: Port 3306 für lokale Tests exposed
- rag_service.py: NameError und Collection Naming Bug gefixt

app/services/rag_service.py

@@ -45,6 +45,8 @@ class RAGService:
 
     def _get_collection_name(self, locale: str) -> str:
         """Generate collection name for a given locale."""
+        if not locale:
+            return self.collection_prefix
         return f"{self.collection_prefix}_{locale}"
 
     def _ensure_collection_exists(self, locale: str) -> str:
@@ -118,6 +120,12 @@ class RAGService:
                     }
 
         # Chunk and embed the content
+        chunks_with_embeddings = self.embedding_service.chunk_and_embed_post(
+            post_content=body_md,
+            post_id=post_id,
+            post_title=title
+        )
+
         if not chunks_with_embeddings:
             return {
                 'post_id': post_id,