🔧 chore: switch package tooling to Bun

package.json

@@ -1,27 +1,27 @@
 {
-    "devDependencies": {
-        "@types/node": "^17.0.21",
-        "@types/validator": "^13.7.1",
-        "copyfiles": "^2.4.1",
-        "ts-node-dev": "^1.1.8",
-        "typescript": "^4.6.2"
-    },
-    "scripts": {
-        "tsc": "tsc",
-        "development": "ts-node-dev ./src/index.ts --respawn --transpileOnly",
-        "build": "tsc -b && copyfiles -u 1 configs_example/**/*.* dist/configs_example/",
-        "docker-build": "docker build . -t ghcr.io/yuzuzensai/cloudflare-ddns-updater:latest"
-    },
-    "name": "cloudflare-ddns-updater",
-    "version": "1.0.0",
-    "main": "index.js",
-    "repository": "https://github.com/YuzuZensai/Cloudflare-DDNS-Updater.git",
-    "author": "Yuzu <yuzu@kirameki.cafe>",
-    "license": "GPL-3.0",
-    "dependencies": {
-        "axios": "^0.26.0",
-        "dotenv": "^16.0.0",
-        "validator": "^13.7.0",
-        "winston": "3.3.3"
-    }
+  "name": "cloudflare-ddns-updater",
+  "version": "1.0.0",
+  "packageManager": "bun@1.3.14",
+  "main": "index.js",
+  "repository": "https://github.com/YuzuZensai/Cloudflare-DDNS-Updater.git",
+  "author": "Yuzu <yuzu@kirameki.cafe>",
+  "license": "GPL-3.0",
+  "dependencies": {
+    "axios": "^1.18.1",
+    "dotenv": "^17.4.2",
+    "validator": "^13.15.35",
+    "winston": "3.19.0"
+  },
+  "devDependencies": {
+    "@types/node": "^26.0.1",
+    "@types/validator": "^13.15.10",
+    "typescript": "^6.0.3"
+  },
+  "scripts": {
+    "typecheck": "tsc --noEmit",
+    "dev": "bun --watch src/index.ts",
+    "start": "bun src/index.ts",
+    "build": "bun run typecheck",
+    "docker-build": "docker build . -t ghcr.io/yuzuzensai/cloudflare-ddns-updater:latest"
+  }
 }