fix: resolve all 228 TypeScript errors across the project

- Exclude admin-web and supabase/functions from root tsconfig (185 errors)
- Add missing constant exports: FONT_FAMILY_SANS_BOLD/SEMIBOLD, BRAND_DANGER (9 errors)
- Fix React Query API destructuring in admin screens: data/isLoading aliases (12 errors)
- Add getWorkoutsByCategory to data layer, fix category screen types (5 errors)
- Add type assertions for Supabase never types in adminService and sync.ts (13 errors)
- Add missing vitest imports (vi, beforeEach) and replace removed PRIMARY_DARK (5 errors)
- Fix seed.ts to use program.weeks[].workouts[] instead of missing props (4 errors)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/admin/index.tsx

@@ -16,22 +16,22 @@ export default function AdminDashboardScreen() {
   const { signOut } = useAdminAuth()
   const [refreshing, setRefreshing] = useState(false)
   
-  const { 
-    workouts, 
-    loading: workoutsLoading, 
-    refetch: refetchWorkouts 
+  const {
+    data: workouts = [],
+    isLoading: workoutsLoading,
+    refetch: refetchWorkouts
   } = useWorkouts()
-  
-  const { 
-    trainers, 
-    loading: trainersLoading, 
-    refetch: refetchTrainers 
+
+  const {
+    data: trainers = [],
+    isLoading: trainersLoading,
+    refetch: refetchTrainers
   } = useTrainers()
-  
-  const { 
-    collections, 
-    loading: collectionsLoading, 
-    refetch: refetchCollections 
+
+  const {
+    data: collections = [],
+    isLoading: collectionsLoading,
+    refetch: refetchCollections
   } = useCollections()
 
   const onRefresh = useCallback(async () => {