Refactor: Improve MCP logging, update E2E & tests

Refactors MCP server logging and updates testing infrastructure.

- MCP Server:

  - Replaced manual logger wrappers with centralized `createLogWrapper` utility.

  - Updated direct function calls to use `{ session, mcpLog }` context.

  - Removed deprecated `model` parameter from analyze, expand-all, expand-task tools.

  - Adjusted MCP tool import paths and parameter descriptions.

- Documentation:

  - Modified `docs/configuration.md`.

  - Modified `docs/tutorial.md`.

- Testing:

  - E2E Script (`run_e2e.sh`):

    - Removed `set -e`.

    - Added LLM analysis function (`analyze_log_with_llm`) & integration.

    - Adjusted test run directory creation timing.

    - Added debug echo statements.

  - Deleted Unit Tests: Removed `ai-client-factory.test.js`, `ai-client-utils.test.js`, `ai-services.test.js`.

  - Modified Fixtures: Updated `scripts/task-complexity-report.json`.

- Dev Scripts:

  - Modified `scripts/dev.js`.

mcp-server/src/tools/utils.js

@@ -443,7 +443,7 @@ function createContentResponse(content) {
  * @param {string} errorMessage - Error message to include in response
  * @returns {Object} - Error content response object in FastMCP format
  */
-export function createErrorResponse(errorMessage) {
+function createErrorResponse(errorMessage) {
 	return {
 		content: [
 			{
@@ -455,6 +455,25 @@ export function createErrorResponse(errorMessage) {
 	};
 }
 
+/**
+ * Creates a logger wrapper object compatible with core function expectations.
+ * Adapts the MCP logger to the { info, warn, error, debug, success } structure.
+ * @param {Object} log - The MCP logger instance.
+ * @returns {Object} - The logger wrapper object.
+ */
+function createLogWrapper(log) {
+	return {
+		info: (message, ...args) => log.info(message, ...args),
+		warn: (message, ...args) => log.warn(message, ...args),
+		error: (message, ...args) => log.error(message, ...args),
+		// Handle optional debug method
+		debug: (message, ...args) =>
+			log.debug ? log.debug(message, ...args) : null,
+		// Map success to info as a common fallback
+		success: (message, ...args) => log.info(message, ...args)
+	};
+}
+
 // Ensure all functions are exported
 export {
 	getProjectRoot,
@@ -463,5 +482,7 @@ export {
 	executeTaskMasterCommand,
 	getCachedOrExecute,
 	processMCPResponseData,
-	createContentResponse
+	createContentResponse,
+	createErrorResponse,
+	createLogWrapper
 };