Add Ensemble-compatible library exports

Author: haasonsaas

package.json

@@ -1,13 +1,28 @@
 {
   "name": "mcp-openapi",
-  "version": "0.1.0",
-  "private": true,
+  "version": "0.4.0",
   "type": "module",
   "description": "OpenAPI to MCP server bridge",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "bin": {
+    "mcp-openapi": "./dist/server.js"
+  },
+  "files": [
+    "dist",
+    "README.md"
+  ],
   "scripts": {
     "build": "tsc -p tsconfig.json",
     "dev": "tsx src/server.ts",
     "start": "node dist/server.js",
+    "prepare": "npm run build",
     "check": "tsc -p tsconfig.json --noEmit",
     "test": "tsx --test test/*.test.ts",
     "smoke": "npm run build && tsx scripts/smoke.ts"