chore: implement coderabbit suggestions

- Fix update command validation when AI omits subtasks/status/dependencies
  - Fix add-task command when AI returns non-string details field
  - Fix update-task command when AI subtasks miss required fields
  - Add preprocessing to ensure proper field types before validation
  - Prevent split() errors on non-string fields
  - Set proper defaults for missing required fields

.changeset/puny-friends-give.md

@@ -1,5 +0,0 @@
----
-"task-master-ai": patch
----
-
-Fix MCP server error when retrieving tools and resources

mcp-server/src/index.js

@@ -32,6 +32,10 @@ class TaskMasterMCPServer {
 		this.server = new FastMCP(this.options);
 		this.initialized = false;
 
+		this.server.addResource({});
+
+		this.server.addResourceTemplate({});
+
 		// Bind methods
 		this.init = this.init.bind(this);
 		this.start = this.start.bind(this);