use bun and remove some deps

package.json

@@ -1,23 +1,20 @@
 {
-  "version": "1.3.4",
+  "version": "1.4.0",
   "license": "MIT",
   "type": "module",
-  "main": "dist",
+  "main": "./src/index.ts",
   "scripts": {
-    "build": "tsc",
-    "dev": "tsc -w",
-    "start": "node ."
+    "check": "tsc --noEmit",
+    "dev": "bun --watch ./src/index.ts",
+    "start": "bun ./src/index.ts"
   },
   "dependencies": {
     "axios": "^1.6.7",
-    "dotenv": "^16.4.5",
-    "node-cron": "^3.0.3",
+    "croner": "^8.0.1",
     "winston": "^3.11.0"
   },
   "devDependencies": {
-    "@types/node": "^20.11.20",
-    "@types/node-cron": "^3.0.11",
+    "@types/bun": "^1.0.7",
     "typescript": "^5.3.3"
-  },
-  "packageManager": "pnpm@8.15.4"
+  }
 }