feat(tagged-tasks): Complete core tag management system implementation

- Implements comprehensive tagged task lists system for multi-context task management including core tag management functions (Task 103.11), MCP integration updates, and foundational infrastructure for tagged task operations. Features tag CRUD operations, validation, metadata tracking, deep task copying, and full backward compatibility.

mcp-server/src/tools/expand-all.js

@@ -92,7 +92,13 @@ export function registerExpandAllTool(server) {
 					{ session }
 				);
 
-				return handleApiResult(result, log, 'Error expanding all tasks');
+				return handleApiResult(
+					result,
+					log,
+					'Error expanding all tasks',
+					undefined,
+					args.projectRoot
+				);
 			} catch (error) {
 				log.error(
 					`Unexpected error in expand_all tool execute: ${error.message}`