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/package.json

@@ -23,5 +23,9 @@
     "inquirer": "^12.0.0",
     "js-yaml": "^4.1.0",
     "zod": "^3.24.0"
+  },
+  "devDependencies": {
+    "@types/js-yaml": "^4.0.9",
+    "@types/node": "^25.3.0"
   }
 }