feat(cli): add settings file support for builtin Claude

- Enhance CLI status rendering to display settings file information for builtin Claude.
- Introduce settings file input in CLI manager for configuring the path to settings.json.
- Update Claude CLI tool interface to include settingsFile property.
- Implement settings file resolution and validation in CLI executor.
- Create a new collaborative planning workflow command with detailed documentation.
- Add test scripts for debugging tool configuration and command building.

test-config-debug.mjs

@@ -0,0 +1,16 @@
+import { getToolConfig, loadClaudeCliTools } from './ccw/dist/tools/claude-cli-tools.js';
+
+const workingDir = 'D:\\Claude_dms3';
+const tool = 'claude';
+
+console.log('=== Step 1: Load full config ===');
+const fullConfig = loadClaudeCliTools(workingDir);
+console.log('Full config:', JSON.stringify(fullConfig, null, 2));
+
+console.log('\n=== Step 2: Get claude tool from config ===');
+const claudeTool = fullConfig.tools.claude;
+console.log('Claude tool raw:', JSON.stringify(claudeTool, null, 2));
+
+console.log('\n=== Step 3: Get tool config via getToolConfig ===');
+const config = getToolConfig(workingDir, tool);
+console.log('Claude tool config:', JSON.stringify(config, null, 2));