fix: prevent new projects from overriding global theme setting

When creating new projects, the theme was always explicitly set even when
matching the global theme. This caused "Use Global Theme" to be unchecked,
preventing global theme changes from affecting the project.

Now theme is only set on new projects when explicitly provided or when
recovering a trashed project's theme preference.

apps/ui/src/components/layout/project-switcher/project-switcher.tsx

@@ -2,7 +2,7 @@ import { useState, useCallback, useEffect } from 'react';
 import { Plus, Bug, FolderOpen, BookOpen } from 'lucide-react';
 import { useNavigate, useLocation } from '@tanstack/react-router';
 import { cn } from '@/lib/utils';
-import { useAppStore, type ThemeMode } from '@/store/app-store';
+import { useAppStore } from '@/store/app-store';
 import { useOSDetection } from '@/hooks/use-os-detection';
 import { ProjectSwitcherItem } from './components/project-switcher-item';
 import { ProjectContextMenu } from './components/project-context-menu';
@@ -10,7 +10,7 @@ import { EditProjectDialog } from './components/edit-project-dialog';
 import { NotificationBell } from './components/notification-bell';
 import { NewProjectModal } from '@/components/dialogs/new-project-modal';
 import { OnboardingDialog } from '@/components/layout/sidebar/dialogs';
-import { useProjectCreation, useProjectTheme } from '@/components/layout/sidebar/hooks';
+import { useProjectCreation } from '@/components/layout/sidebar/hooks';
 import { SIDEBAR_FEATURE_FLAGS } from '@/components/layout/sidebar/constants';
 import type { Project } from '@/lib/electron';
 import { getElectronAPI } from '@/lib/electron';
@@ -41,7 +41,6 @@ export function ProjectSwitcher() {
     projects,
     currentProject,
     setCurrentProject,
-    trashedProjects,
     upsertAndSetCurrentProject,
     specCreatingForProject,
     setSpecCreatingForProject,
@@ -69,9 +68,6 @@ export function ProjectSwitcher() {
   const appMode = import.meta.env.VITE_APP_MODE || '?';
   const versionSuffix = `${getOSAbbreviation(os)}${appMode}`;
 
-  // Get global theme for project creation
-  const { globalTheme } = useProjectTheme();
-
   // Project creation state and handlers
   const {
     showNewProjectModal,
@@ -84,9 +80,6 @@ export function ProjectSwitcher() {
     handleCreateFromTemplate,
     handleCreateFromCustomUrl,
   } = useProjectCreation({
-    trashedProjects,
-    currentProject,
-    globalTheme,
     upsertAndSetCurrentProject,
   });
 
@@ -161,13 +154,8 @@ export function ProjectSwitcher() {
         }
 
         // Upsert project and set as current (handles both create and update cases)
-        // Theme preservation is handled by the store action
-        const trashedProject = trashedProjects.find((p) => p.path === path);
-        const effectiveTheme =
-          (trashedProject?.theme as ThemeMode | undefined) ||
-          (currentProject?.theme as ThemeMode | undefined) ||
-          globalTheme;
-        upsertAndSetCurrentProject(path, name, effectiveTheme);
+        // Theme handling (trashed project recovery or undefined for global) is done by the store
+        upsertAndSetCurrentProject(path, name);
 
         // Check if app_spec.txt exists
         const specExists = await hasAppSpec(path);
@@ -198,7 +186,7 @@ export function ProjectSwitcher() {
         });
       }
     }
-  }, [trashedProjects, upsertAndSetCurrentProject, currentProject, globalTheme, navigate]);
+  }, [upsertAndSetCurrentProject, navigate]);
 
   // Handler for creating initial spec from the setup dialog
   const handleCreateInitialSpec = useCallback(async () => {