Refactor project configuration and dependencies

- Move IS_CRESC logic to constants module
- Update package.json with new type definitions
- Simplify global variable usage
- Update bun.lock with latest package versions
- Improve type safety and configuration management

package.json

@@ -69,10 +69,13 @@
     "@swc/cli": "^0.5.1",
     "@swc/core": "^1.9.3",
     "@types/filesize-parser": "^1.5.3",
+    "@types/fs-extra": "^11.0.4",
     "@types/node": "^22.9.3",
     "@types/node-fetch": "^2.6.12",
     "@types/progress": "^2.0.7",
+    "@types/semver": "^7.5.8",
     "@types/tcp-ping": "^0.1.6",
+    "@types/update-notifier": "^6.0.8",
     "typescript": "^5.7.2"
   },
   "packageManager": "yarn@1.22.21+sha1.1959a18351b811cdeedbd484a8f86c3cc3bbaf72"