refactor: rename phase models to model defaults and reorganize components

- Updated imports and references from 'phase-models' to 'model-defaults' across various components.
- Removed obsolete phase models index file to streamline the codebase.

apps/ui/src/components/views/settings-view/config/navigation.ts

@@ -26,7 +26,7 @@ export const NAV_ITEMS: NavigationItem[] = [
   { id: 'providers', label: 'AI Providers', icon: Bot },
   { id: 'mcp-servers', label: 'MCP Servers', icon: Plug },
   { id: 'prompts', label: 'Prompt Customization', icon: MessageSquareText },
-  { id: 'phase-models', label: 'Phase Models', icon: Workflow },
+  { id: 'model-defaults', label: 'Model Defaults', icon: Workflow },
   { id: 'appearance', label: 'Appearance', icon: Palette },
   { id: 'terminal', label: 'Terminal', icon: SquareTerminal },
   { id: 'keyboard', label: 'Keyboard Shortcuts', icon: Settings2 },

apps/ui/src/components/views/settings-view/hooks/use-settings-view.ts

@@ -6,7 +6,7 @@ export type SettingsViewId =
   | 'providers'
   | 'mcp-servers'
   | 'prompts'
-  | 'phase-models'
+  | 'model-defaults'
   | 'appearance'
   | 'terminal'
   | 'keyboard'

apps/ui/src/components/views/settings-view/model-defaults/index.ts

@@ -0,0 +1,2 @@
+export { ModelDefaultsSection } from './model-defaults-section';
+export { PhaseModelSelector } from './phase-model-selector';

apps/ui/src/components/views/settings-view/model-defaults/model-defaults-section.tsx

@@ -98,7 +98,7 @@ function PhaseGroup({
   );
 }
 
-export function PhaseModelsSection() {
+export function ModelDefaultsSection() {
   const { resetPhaseModels } = useAppStore();
 
   return (
@@ -118,7 +118,9 @@ export function PhaseModelsSection() {
               <Workflow className="w-5 h-5 text-brand-500" />
             </div>
             <div>
-              <h2 className="text-lg font-semibold text-foreground tracking-tight">Phase Models</h2>
+              <h2 className="text-lg font-semibold text-foreground tracking-tight">
+                Model Defaults
+              </h2>
               <p className="text-sm text-muted-foreground/80">
                 Configure which AI model to use for each application task
               </p>

apps/ui/src/components/views/settings-view/phase-models/index.ts

@@ -1,2 +0,0 @@
-export { PhaseModelsSection } from './phase-models-section';
-export { PhaseModelSelector } from './phase-model-selector';