fix(ui,server): Fix project icon updates and image upload issues

- Fix setProjectCustomIcon using wrong property name (customIcon -> customIconPath)
- Add currentProject state update to setProjectIcon and setProjectCustomIcon
- Fix data URL regex to handle all formats (e.g., charset=utf-8 in GIFs)
- Increase project icon size limit from 2MB to 5MB for animated GIFs
- Add toast notifications for upload validation errors
- Add image error fallback to folder icon in project switcher
- Make HttpApiClient get/put methods public for store access
- Fix TypeScript errors in app-store.ts (trashedAt type, font properties)

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

apps/ui/src/components/layout/sidebar/components/project-selector-with-options.tsx

@@ -100,14 +100,8 @@ export function ProjectSelectorWithOptions({
 
   const { sensors, handleDragEnd } = useDragAndDrop({ projects, reorderProjects });
 
-  const {
-    globalTheme,
-    setTheme,
-    setProjectTheme,
-    setPreviewTheme,
-    handlePreviewEnter,
-    handlePreviewLeave,
-  } = useProjectTheme();
+  const { globalTheme, setProjectTheme, setPreviewTheme, handlePreviewEnter, handlePreviewLeave } =
+    useProjectTheme();
 
   if (!sidebarOpen || projects.length === 0) {
     return null;
@@ -281,11 +275,8 @@ export function ProjectSelectorWithOptions({
                   onValueChange={(value) => {
                     if (currentProject) {
                       setPreviewTheme(null);
-                      if (value !== '') {
-                        setTheme(value as ThemeMode);
-                      } else {
-                        setTheme(globalTheme);
-                      }
+                      // Only set project theme - don't change global theme
+                      // The UI uses getEffectiveTheme() which handles: previewTheme ?? projectTheme ?? globalTheme
                       setProjectTheme(
                         currentProject.id,
                         value === '' ? null : (value as ThemeMode)

apps/ui/src/components/layout/sidebar/components/theme-menu-item.tsx

@@ -9,19 +9,15 @@ export const ThemeMenuItem = memo(function ThemeMenuItem({
 }: ThemeMenuItemProps) {
   const Icon = option.icon;
   return (
-    <div
-      key={option.value}
+    <DropdownMenuRadioItem
+      value={option.value}
+      data-testid={`project-theme-${option.value}`}
+      className="text-xs py-1.5"
       onPointerEnter={() => onPreviewEnter(option.value)}
       onPointerLeave={onPreviewLeave}
     >
-      <DropdownMenuRadioItem
-        value={option.value}
-        data-testid={`project-theme-${option.value}`}
-        className="text-xs py-1.5"
-      >
-        <Icon className="w-3.5 h-3.5 mr-1.5" style={{ color: option.color }} />
-        <span>{option.label}</span>
-      </DropdownMenuRadioItem>
-    </div>
+      <Icon className="w-3.5 h-3.5 mr-1.5" style={{ color: option.color }} />
+      <span>{option.label}</span>
+    </DropdownMenuRadioItem>
   );
 });