Merge v0.11.0rc into feat/mobile-improvements-contributor

Resolves merge conflicts by keeping both features:
- enableAiCommitMessages (from our branch)
- defaultFeatureModel (from v0.11.0rc)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/ui/src/components/views/board-view/board-header.tsx

@@ -161,7 +161,7 @@ export function BoardHeader({
           <div className={controlContainerClass} data-testid="worktrees-toggle-container">
             <GitBranch className="w-4 h-4 text-muted-foreground" />
             <Label htmlFor="worktrees-toggle" className="text-sm font-medium cursor-pointer">
-              Worktrees
+              Worktree Bar
             </Label>
             <Switch
               id="worktrees-toggle"