chore: update dependencies in package.json and pnpm-lock.yaml; add cnb.ts for custom-cnb provider testing

package.json

@@ -42,7 +42,7 @@
     "@kevisual/router": "0.0.84",
     "@kevisual/types": "^0.0.12",
     "@kevisual/use-config": "^1.0.30",
-    "@types/bun": "^1.3.9",
+    "@types/bun": "^1.3.10",
     "@types/crypto-js": "^4.2.2",
     "@types/formidable": "^3.4.7",
     "@types/node": "^25.3.3",
@@ -59,10 +59,10 @@
   },
   "dependencies": {
     "@kevisual/logger": "^0.0.4",
-    "@ai-sdk/anthropic": "^3.0.51",
-    "@ai-sdk/openai": "^3.0.38",
-    "@ai-sdk/openai-compatible": "^2.0.31",
-    "ai": "^6.0.106",
+    "@ai-sdk/anthropic": "^3.0.53",
+    "@ai-sdk/openai": "^3.0.39",
+    "@ai-sdk/openai-compatible": "^2.0.33",
+    "ai": "^6.0.108",
     "@kevisual/permission": "^0.0.4",
     "@kevisual/query": "^0.0.52"
   }