Refactor CLI command usage from ccw cli exec to ccw cli -p for improved prompt handling

- Updated command patterns across documentation and templates to reflect the new CLI syntax.
- Enhanced CLI tool implementation to support reading prompts from files and multi-line inputs.
- Modified core components and views to ensure compatibility with the new command structure.
- Adjusted help messages and internationalization strings to align with the updated command format.
- Improved error handling and user notifications in the CLI execution flow.

ccw/src/tools/cli-config-manager.ts

@@ -11,7 +11,7 @@ import { StoragePaths, ensureStorageDir } from '../config/storage-paths.js';
 
 export interface CliToolConfig {
   enabled: boolean;
-  primaryModel: string;      // For CLI endpoint calls (ccw cli exec)
+  primaryModel: string;      // For CLI endpoint calls (ccw cli -p)
   secondaryModel: string;    // For internal calls (llm_enhancer, generate_module_docs)
 }