chore: bump @opencode-ai/sdk to 1.18.21

packages/ui/package.json

@@ -44,7 +44,7 @@
     "@dnd-kit/sortable": "^10.0.0",
     "@dnd-kit/utilities": "^3.2.2",
     "@lezer/highlight": "^1.2.3",
-    "@opencode-ai/sdk": "1.18.18",
+    "@opencode-ai/sdk": "1.18.21",
     "@pierre/diffs": "1.3.0-beta.6",
     "@replit/codemirror-vim": "^6.4.0",
     "@simplewebauthn/browser": "13.3.0",

packages/vscode/package.json

@@ -245,7 +245,7 @@
   },
   "dependencies": {
     "@openchamber/ui": "workspace:*",
-    "@opencode-ai/sdk": "1.18.18",
+    "@opencode-ai/sdk": "1.18.21",
     "adm-zip": "^0.6.0",
     "jsonc-parser": "^3.3.1",
     "react": "^19.1.1",

packages/web/package.json

@@ -25,7 +25,7 @@
   "dependencies": {
     "@clack/prompts": "^1.1.0",
     "@octokit/rest": "^22.0.1",
-    "@opencode-ai/sdk": "1.18.18",
+    "@opencode-ai/sdk": "1.18.21",
     "@simplewebauthn/server": "13.3.1",
     "bun-pty": "^0.4.5",
     "compression": "^1.8.1",