tsdown + cli with commander (#17)

* feat: tsdown

* fix: formatting

* automate version updates in cli

* fix: docs

* scenarios

* fix: commander deps

package.json

@@ -3,13 +3,19 @@
   "version": "0.1.0",
   "type": "module",
   "scripts": {
-    "start": "tsx src/runner.ts",
-    "test:server": "tsx src/server-runner.ts",
+    "start": "tsx src/index.ts",
     "test": "jest",
+    "build": "tsdown src/index.ts --minify --clean --target node20",
     "lint": "eslint src/ && prettier --check .",
     "lint:fix": "eslint src/ --fix && prettier --write .",
     "lint:fix_check": "npm run lint:fix && git diff --exit-code --quiet"
   },
+  "files": [
+    "dist"
+  ],
+  "bin": {
+    "conformance": "dist/index.mjs"
+  },
   "devDependencies": {
     "@eslint/js": "^9.8.0",
     "@jest/globals": "^29.7.0",
@@ -20,12 +26,14 @@
     "jest": "^29.7.0",
     "prettier": "3.6.2",
     "ts-jest": "^29.1.1",
+    "tsdown": "^0.16.2",
     "tsx": "^4.7.0",
     "typescript": "^5.5.4",
     "typescript-eslint": "^8.0.0"
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.20.1",
+    "commander": "^14.0.2",
     "express": "^5.1.0",
     "lefthook": "^2.0.2",
     "zod": "^3.25.76"