fix: Add missing cognify_text method to CogneeProjectIntegration

Resolves AttributeError when agent_executor calls cognify_text().
The method adds text to a dataset and cognifies it into a knowledge graph.

ai/src/fuzzforge_ai/cognee_integration.py

@@ -187,6 +187,42 @@ class CogneeProjectIntegration:
         except Exception as e:
             return {"error": f"Failed to list data: {e}"}
     
+    async def cognify_text(self, text: str, dataset: str = None) -> Dict[str, Any]:
+        """
+        Cognify text content into knowledge graph
+
+        Args:
+            text: Text to cognify
+            dataset: Dataset name (defaults to project_name_codebase)
+
+        Returns:
+            Dict containing cognify results
+        """
+        if not self._initialized:
+            await self.initialize()
+
+        if not self._initialized:
+            return {"error": "Cognee not initialized"}
+
+        if not dataset:
+            dataset = f"{self.project_context['project_name']}_codebase"
+
+        try:
+            # Add text to dataset
+            await self._cognee.add([text], dataset_name=dataset)
+
+            # Process (cognify) the dataset
+            await self._cognee.cognify([dataset])
+
+            return {
+                "text_length": len(text),
+                "dataset": dataset,
+                "project": self.project_context["project_name"],
+                "status": "success"
+            }
+        except Exception as e:
+            return {"error": f"Cognify failed: {e}"}
+
     async def ingest_text_to_dataset(self, text: str, dataset: str = None) -> Dict[str, Any]:
         """
         Ingest text content into a specific dataset