feat: build CLI core framework with Commander.js

Add CLI entry point with Commander.js, config management (~/.mcpctl/config.json
with Zod validation), output formatters (table/json/yaml), config and status
commands with dependency injection for testing. Fix sanitizeString regex ordering.
67 tests passing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/src/commands/status.ts

@@ -0,0 +1,63 @@
+import { Command } from 'commander';
+import http from 'node:http';
+import { loadConfig } from '../config/index.js';
+import type { ConfigLoaderDeps } from '../config/index.js';
+import { formatJson, formatYaml } from '../formatters/index.js';
+import { APP_VERSION } from '@mcpctl/shared';
+
+export interface StatusCommandDeps {
+  configDeps: Partial<ConfigLoaderDeps>;
+  log: (...args: string[]) => void;
+  checkDaemon: (url: string) => Promise<boolean>;
+}
+
+function defaultCheckDaemon(url: string): Promise<boolean> {
+  return new Promise((resolve) => {
+    const req = http.get(`${url}/health`, { timeout: 3000 }, (res) => {
+      resolve(res.statusCode !== undefined && res.statusCode >= 200 && res.statusCode < 400);
+      res.resume();
+    });
+    req.on('error', () => resolve(false));
+    req.on('timeout', () => {
+      req.destroy();
+      resolve(false);
+    });
+  });
+}
+
+const defaultDeps: StatusCommandDeps = {
+  configDeps: {},
+  log: (...args) => console.log(...args),
+  checkDaemon: defaultCheckDaemon,
+};
+
+export function createStatusCommand(deps?: Partial<StatusCommandDeps>): Command {
+  const { configDeps, log, checkDaemon } = { ...defaultDeps, ...deps };
+
+  return new Command('status')
+    .description('Show mcpctl status and connectivity')
+    .option('-o, --output <format>', 'output format (table, json, yaml)', 'table')
+    .action(async (opts: { output: string }) => {
+      const config = loadConfig(configDeps);
+      const daemonReachable = await checkDaemon(config.daemonUrl);
+
+      const status = {
+        version: APP_VERSION,
+        daemonUrl: config.daemonUrl,
+        daemonReachable,
+        registries: config.registries,
+        outputFormat: config.outputFormat,
+      };
+
+      if (opts.output === 'json') {
+        log(formatJson(status));
+      } else if (opts.output === 'yaml') {
+        log(formatYaml(status));
+      } else {
+        log(`mcpctl v${status.version}`);
+        log(`Daemon:     ${status.daemonUrl} (${daemonReachable ? 'connected' : 'unreachable'})`);
+        log(`Registries: ${status.registries.join(', ')}`);
+        log(`Output:     ${status.outputFormat}`);
+      }
+    });
+}