chore: update OpenCode AI dependencies to latest versions

Update @opencode-ai/plugin and @opencode-ai/sdk from 1.1.47 to 1.1.51
to benefit from recent improvements, bug fixes, and enhanced
compatibility with the OpenCode platform.

Author: MBanucu

bun.lock

@@ -85,8 +85,8 @@
     "typescript": "^5"
   },
   "dependencies": {
-    "@opencode-ai/plugin": "1.1.47",
-    "@opencode-ai/sdk": "1.1.47",
+    "@opencode-ai/plugin": "^1.1.51",
+    "@opencode-ai/sdk": "^1.1.51",
     "bun-pty": "^0.4.8",
     "moment": "^2.30.1",
     "open": "^11.0.0"