feat: add declaration generation

Author: danixoon

packages/openapi/package-lock.json

@@ -4,6 +4,13 @@
   "description": "",
   "type": "module",
   "main": "./index.js",
+  "scripts": {
+    "prepare": "tsc"
+  },
   "keywords": [],
-  "author": ""
+  "author": "",
+  "types": "types/index.d.ts",
+  "dependencies": {
+    "typescript": "^5.8.3"
+  }
 }

packages/openapi/package.json

@@ -0,0 +1,9 @@
+{
+  "include": ["index.js", "src/**/*.js"],
+  "compilerOptions": {
+    "allowJs": true,
+    "declaration": true,
+    "emitDeclarationOnly": true,
+    "outDir": "./types"
+  }
+}