feat: CCW Dashboard 增强 - 停止命令、浏览器修复和MCP多源配置

- 新增 ccw stop 命令支持优雅停止和强制终止 (--force)
- 修复 ccw view 服务器检测时浏览器无法打开的问题
- MCP 配置现在从多个源读取:
  - ~/.claude.json (项目级)
  - ~/.claude/settings.json 和 settings.local.json (全局)
  - 各工作空间的 .claude/settings.json (工作空间级)
- 新增全局 MCP 服务器显示区域
- 修复路径选择模态框样式问题

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

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

ccw/src/commands/stop.js

@@ -0,0 +1,101 @@
+import chalk from 'chalk';
+import { exec } from 'child_process';
+import { promisify } from 'util';
+
+const execAsync = promisify(exec);
+
+/**
+ * Find process using a specific port (Windows)
+ * @param {number} port - Port number
+ * @returns {Promise<string|null>} PID or null
+ */
+async function findProcessOnPort(port) {
+  try {
+    const { stdout } = await execAsync(`netstat -ano | findstr :${port} | findstr LISTENING`);
+    const lines = stdout.trim().split('\n');
+    if (lines.length > 0) {
+      const parts = lines[0].trim().split(/\s+/);
+      return parts[parts.length - 1]; // PID is the last column
+    }
+  } catch {
+    // No process found
+  }
+  return null;
+}
+
+/**
+ * Kill process by PID (Windows)
+ * @param {string} pid - Process ID
+ * @returns {Promise<boolean>} Success status
+ */
+async function killProcess(pid) {
+  try {
+    await execAsync(`taskkill /PID ${pid} /F`);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Stop command handler - stops the running CCW dashboard server
+ * @param {Object} options - Command options
+ */
+export async function stopCommand(options) {
+  const port = options.port || 3456;
+  const force = options.force || false;
+
+  console.log(chalk.blue.bold('\n  CCW Dashboard\n'));
+  console.log(chalk.gray(`  Checking server on port ${port}...`));
+
+  try {
+    // Try graceful shutdown via API first
+    const healthCheck = await fetch(`http://localhost:${port}/api/health`, {
+      signal: AbortSignal.timeout(2000)
+    }).catch(() => null);
+
+    if (healthCheck && healthCheck.ok) {
+      // CCW server is running - send shutdown signal
+      console.log(chalk.cyan('  CCW server found, sending shutdown signal...'));
+
+      await fetch(`http://localhost:${port}/api/shutdown`, {
+        method: 'POST',
+        signal: AbortSignal.timeout(5000)
+      }).catch(() => null);
+
+      // Wait a moment for shutdown
+      await new Promise(resolve => setTimeout(resolve, 500));
+
+      console.log(chalk.green.bold('\n  Server stopped successfully!\n'));
+      return;
+    }
+
+    // No CCW server responding, check if port is in use
+    const pid = await findProcessOnPort(port);
+
+    if (!pid) {
+      console.log(chalk.yellow(`  No server running on port ${port}\n`));
+      return;
+    }
+
+    // Port is in use by another process
+    console.log(chalk.yellow(`  Port ${port} is in use by process PID: ${pid}`));
+
+    if (force) {
+      console.log(chalk.cyan('  Force killing process...'));
+      const killed = await killProcess(pid);
+
+      if (killed) {
+        console.log(chalk.green.bold('\n  Process killed successfully!\n'));
+      } else {
+        console.log(chalk.red('\n  Failed to kill process. Try running as administrator.\n'));
+      }
+    } else {
+      console.log(chalk.gray(`\n  This is not a CCW server. Use --force to kill it:`));
+      console.log(chalk.white(`  ccw stop --force\n`));
+    }
+
+  } catch (err) {
+    console.error(chalk.red(`\n  Error: ${err.message}\n`));
+  }
+}