feat: Add workflow dashboard template and utility functions

- Implemented a new HTML template for the workflow dashboard, featuring a responsive design with dark/light theme support, session statistics, and task management UI.
- Created a browser launcher utility to open HTML files in the default browser across platforms.
- Developed file utility functions for safe reading and writing of JSON and text files.
- Added path resolver utilities to validate and resolve file paths, ensuring security against path traversal attacks.
- Introduced UI utilities for displaying styled messages and banners in the console.

ccw/src/cli.js

@@ -0,0 +1,82 @@
+import { Command } from 'commander';
+import { viewCommand } from './commands/view.js';
+import { installCommand } from './commands/install.js';
+import { uninstallCommand } from './commands/uninstall.js';
+import { listCommand } from './commands/list.js';
+import { readFileSync, existsSync } from 'fs';
+import { fileURLToPath } from 'url';
+import { dirname, join } from 'path';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+/**
+ * Load package.json with error handling
+ * @returns {Object} - Package info with version
+ */
+function loadPackageInfo() {
+  const pkgPath = join(__dirname, '../package.json');
+
+  try {
+    if (!existsSync(pkgPath)) {
+      console.error('Fatal Error: package.json not found.');
+      console.error(`Expected location: ${pkgPath}`);
+      process.exit(1);
+    }
+
+    const content = readFileSync(pkgPath, 'utf8');
+    return JSON.parse(content);
+  } catch (error) {
+    if (error instanceof SyntaxError) {
+      console.error('Fatal Error: package.json contains invalid JSON.');
+      console.error(`Parse error: ${error.message}`);
+    } else {
+      console.error('Fatal Error: Could not read package.json.');
+      console.error(`Error: ${error.message}`);
+    }
+    process.exit(1);
+  }
+}
+
+const pkg = loadPackageInfo();
+
+export function run(argv) {
+  const program = new Command();
+
+  program
+    .name('ccw')
+    .description('Claude Code Workflow CLI - Dashboard and workflow tools')
+    .version(pkg.version);
+
+  // View command
+  program
+    .command('view')
+    .description('Open workflow dashboard in browser')
+    .option('-p, --path <path>', 'Path to project directory', '.')
+    .option('--no-browser', 'Generate dashboard without opening browser')
+    .option('-o, --output <file>', 'Output path for generated HTML')
+    .action(viewCommand);
+
+  // Install command
+  program
+    .command('install')
+    .description('Install Claude Code Workflow to your system')
+    .option('-m, --mode <mode>', 'Installation mode: Global or Path')
+    .option('-p, --path <path>', 'Installation path (for Path mode)')
+    .option('-f, --force', 'Force installation without prompts')
+    .action(installCommand);
+
+  // Uninstall command
+  program
+    .command('uninstall')
+    .description('Uninstall Claude Code Workflow')
+    .action(uninstallCommand);
+
+  // List command
+  program
+    .command('list')
+    .description('List all installed Claude Code Workflow instances')
+    .action(listCommand);
+
+  program.parse(argv);
+}