feat(auth): add authentication routes and user token handling

- Implemented user authentication routes in `auth.ts` for fetching current user info and admin verification.
- Added caching mechanism for user tokens to improve performance.
- Created middleware for admin authentication.

feat(opencode): create OpenCode client route

- Added `opencode-cnb` route for creating OpenCode clients with session management.
- Integrated OpenCode SDK for client operations and session handling.

refactor(client): encapsulate OpenCode client creation

- Created a utility function `getClient` in `client.ts` to initialize OpenCode clients.

test(opencode): add tests for OpenCode routes

- Implemented test cases for OpenCode routes in `list.ts` to validate functionality.
- Created common utilities for testing in `common.ts`.

assistant/package.json

@@ -54,13 +54,13 @@
     "@kevisual/use-config": "^1.0.30",
     "@opencode-ai/plugin": "^1.2.24",
     "@types/bun": "^1.3.10",
-    "@types/node": "^25.4.0",
+    "@types/node": "^25.5.0",
     "@types/send": "^1.2.1",
     "@types/ws": "^8.18.1",
     "chalk": "^5.6.2",
     "commander": "^14.0.3",
     "cross-env": "^10.1.0",
-    "dayjs": "^1.11.19",
+    "dayjs": "^1.11.20",
     "dotenv": "^17.3.1",
     "get-port": "^7.1.0",
     "nanoid": "^5.1.6",
@@ -76,7 +76,7 @@
     "access": "public"
   },
   "dependencies": {
-    "@aws-sdk/client-s3": "^3.1007.0",
+    "@aws-sdk/client-s3": "^3.1008.0",
     "@kevisual/js-filter": "^0.0.6",
     "@kevisual/oss": "^0.0.20",
     "@kevisual/video-tools": "^0.0.13",