switch to bun and add CI, license and readme

package.json

@@ -3,24 +3,18 @@
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
+  "type": "module",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "start": "bun run index.js",
+    "dev": "bun --watch index.js"
   },
   "keywords": [],
-  "author": "",
-  "license": "ISC",
-  "devEngines": {
-    "packageManager": {
-      "name": "pnpm",
-      "version": "^11.3.0",
-      "onFail": "download"
-    }
-  },
-  "type": "module",
+  "author": "Spacebar Network",
+  "license": "AGPL-3.0-only",
   "dependencies": {
     "axios": "^1.19.0",
     "dotenv": "^17.4.2",
     "express": "^5.2.1",
     "pg": "^8.22.0"
   }
-}
+}