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/index.ts

@@ -1,2 +1,29 @@
-// mcpctl CLI entry point
-// Will be implemented in Task 7
+#!/usr/bin/env node
+import { Command } from 'commander';
+import { APP_NAME, APP_VERSION } from '@mcpctl/shared';
+import { createConfigCommand } from './commands/config.js';
+import { createStatusCommand } from './commands/status.js';
+
+export function createProgram(): Command {
+  const program = new Command()
+    .name(APP_NAME)
+    .description('Manage MCP servers like kubectl manages containers')
+    .version(APP_VERSION, '-v, --version')
+    .option('-o, --output <format>', 'output format (table, json, yaml)', 'table')
+    .option('--daemon-url <url>', 'mcpd daemon URL');
+
+  program.addCommand(createConfigCommand());
+  program.addCommand(createStatusCommand());
+
+  return program;
+}
+
+// Run when invoked directly
+const isDirectRun =
+  typeof process !== 'undefined' &&
+  process.argv[1] !== undefined &&
+  import.meta.url === `file://${process.argv[1]}`;
+
+if (isDirectRun) {
+  createProgram().parseAsync(process.argv);
+}