chore: bump @opencode-ai/sdk to 1.18.3

Updates the SDK dependency across web, UI, and VS Code packages.
Refreshes the lockfile and package versions to match the release.
Adds unreleased changelog notes for the current set of user-facing changes.

packages/ui/package.json

@@ -43,7 +43,7 @@
     "@dnd-kit/sortable": "^10.0.0",
     "@dnd-kit/utilities": "^3.2.2",
     "@lezer/highlight": "^1.2.3",
-    "@opencode-ai/sdk": "1.17.18",
+    "@opencode-ai/sdk": "1.18.3",
     "@pierre/diffs": "1.3.0-beta.6",
     "@replit/codemirror-vim": "^6.3.0",
     "@simplewebauthn/browser": "13.3.0",

packages/vscode/CHANGELOG.md

@@ -1,3 +1,10 @@
+## [Unreleased]
+
+- **Settings:** pages now use a consistent responsive layout, navigation is grouped by area, and save failures are shown in the page header. Agent tool permissions now distinguish inherited and explicit rules and show session-granted rules separately (thanks to @makeittech).
+- Permissions: per-session auto-accept works again, persists across extension restarts, and applies to subagent sessions while an OpenChamber view is open.
+- Sessions: new drafts and sessions now stay with the workspace selected in the sidebar, including multi-root and nested workspace setups (thanks to @bashrusakh).
+- Chat: if creating a session fails, the new-session draft stays open and restores the submitted prompt instead of discarding it.
+
 ## [1.16.1] - 2026-07-14
 
 - **Performance:** large workspace session lists no longer regroup every session while chats stream. Opening a long chat after an empty or aborted agent turn also no longer repeatedly loads larger portions of its history.

packages/vscode/package.json

@@ -244,7 +244,7 @@
   },
   "dependencies": {
     "@openchamber/ui": "workspace:*",
-    "@opencode-ai/sdk": "1.17.18",
+    "@opencode-ai/sdk": "1.18.3",
     "adm-zip": "^0.5.16",
     "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": "1.17.18",
+    "@opencode-ai/sdk": "1.18.3",
     "@simplewebauthn/server": "13.3.1",
     "adm-zip": "^0.5.16",
     "better-sqlite3": "^12.10.0",