chore: use tsx for development server execution (#2)

Author: li-yechao

Diff for: package.json

@@ -6,7 +6,7 @@
     "dev": "blocklet dev",
     "lint": "tsc --noEmit && eslint src api/src --ext .mjs,.js,.jsx,.ts,.tsx",
     "lint:fix": "npm run lint -- --fix",
-    "start": "cross-env NODE_ENV=development nodemon api/dev.ts -w api",
+    "start": "cross-env NODE_ENV=development nodemon --exec tsx api/dev.ts -w api",
     "clean": "node scripts/build-clean.mjs",
     "bundle": "tsc --noEmit && npm run bundle:client && npm run bundle:api",
     "bundle:client": "vite build",
@@ -84,6 +84,7 @@
     "rimraf": "^5.0.10",
     "simple-git-hooks": "^2.11.1",
     "ts-node": "^10.9.2",
+    "tsx": "^4.19.3",
     "typescript": "^5.7.3",
     "vite": "^5.4.14",
     "vite-plugin-blocklet": "^0.9.29",