fix: Keep SQLite extensions enabled for database connections

- Comment out enable_load_extension(False) to keep spatial functions available
- Add function test after loading SpatiaLite extension
- Attempt to fix GeomFromText availability in write operations

Author: neverinfamous

src/mcp_server_sqlite/server.py

@@ -338,7 +338,8 @@ def _execute_query(self, query: str, params: Optional[Dict[str, Any]] = None) ->
                             conn.execute("SELECT InitSpatialMetaData(1)")
                         except:
                             pass  # Already initialized or not needed
-                        conn.enable_load_extension(False)
+                        # Keep extensions enabled for this connection
+                        # conn.enable_load_extension(False)  # Comment out to keep functions available
                     except Exception as e:
                         # Log the actual error for debugging
                         logger.debug(f"SpatiaLite loading failed: {e}")