feat(ccw): migrate backend to TypeScript

- Convert 40 JS files to TypeScript (CLI, tools, core, MCP server)
- Add Zod for runtime parameter validation
- Add type definitions in src/types/
- Keep src/templates/ as JavaScript (dashboard frontend)
- Update bin entries to use dist/
- Add tsconfig.json with strict mode
- Add backward-compatible exports for tests
- All 39 tests passing

Breaking changes: None (backward compatible)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

ccw/src/commands/list.ts

@@ -0,0 +1,37 @@
+import chalk from 'chalk';
+import { showBanner, divider, info } from '../utils/ui.js';
+import { getAllManifests } from '../core/manifest.js';
+
+/**
+ * List command handler - shows all installations
+ */
+export async function listCommand(): Promise<void> {
+  showBanner();
+  console.log(chalk.cyan.bold('  Installed Claude Code Workflow Instances\n'));
+
+  const manifests = getAllManifests();
+
+  if (manifests.length === 0) {
+    info('No installations found.');
+    console.log('');
+    console.log(chalk.gray('  Run: ccw install - to install Claude Code Workflow'));
+    console.log('');
+    return;
+  }
+
+  manifests.forEach((m, i) => {
+    const modeColor = m.installation_mode === 'Global' ? chalk.cyan : chalk.yellow;
+
+    console.log(chalk.white.bold(`  ${i + 1}. `) + modeColor.bold(m.installation_mode));
+    console.log(chalk.gray(`     Path:    ${m.installation_path}`));
+    console.log(chalk.gray(`     Date:    ${new Date(m.installation_date).toLocaleDateString()}`));
+    console.log(chalk.gray(`     Version: ${m.application_version}`));
+    console.log(chalk.gray(`     Files:   ${m.files_count}`));
+    console.log(chalk.gray(`     Dirs:    ${m.directories_count}`));
+    console.log('');
+  });
+
+  divider();
+  console.log(chalk.gray('  Run: ccw uninstall - to remove an installation'));
+  console.log('');
+}