feat: 更新依赖项，重构 fetch 逻辑，添加工具路由和代理功能

package.json

@@ -4,18 +4,20 @@
   "type": "module",
   "private": true,
   "devDependencies": {
+    "@kevisual/js-filter": "^0.0.5",
+    "@kevisual/router": "^0.1.0",
     "@types/bun": "latest",
-    "dotenv": "^17.2.3",
+    "dotenv": "^17.3.1",
     "zod": "^4.3.6"
   },
   "peerDependencies": {
     "typescript": "^5"
   },
   "dependencies": {
-    "@ai-sdk/anthropic": "^3.0.35",
-    "@ai-sdk/openai": "^3.0.25",
-    "@ai-sdk/openai-compatible": "^2.0.26",
-    "@kevisual/ai": "^0.0.24",
-    "ai": "^6.0.67"
+    "@ai-sdk/anthropic": "^3.0.58",
+    "@ai-sdk/openai": "^3.0.41",
+    "@ai-sdk/openai-compatible": "^2.0.35",
+    "@kevisual/ai": "^0.0.26",
+    "ai": "^6.0.116"
   }
 }