feat(config): Implement TASK_MASTER_PROJECT_ROOT support for project root resolution

- Added support for the TASK_MASTER_PROJECT_ROOT environment variable in MCP configuration, establishing a clear precedence order for project root resolution.
- Updated utility functions to prioritize the environment variable, followed by args.projectRoot and session-based resolution.
- Enhanced error handling and logging for project root determination.
- Introduced new tasks for comprehensive testing and documentation updates related to the new configuration options.

scripts/modules/config-manager.js

@@ -2,7 +2,7 @@ import fs from 'fs';
 import path from 'path';
 import chalk from 'chalk';
 import { fileURLToPath } from 'url';
-import { log, resolveEnvVariable, findProjectRoot } from './utils.js';
+import { log, findProjectRoot } from './utils.js';
 
 // Calculate __dirname in ESM
 const __filename = fileURLToPath(import.meta.url);