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/collections.tsx

@@ -15,7 +15,7 @@ import type { Collection } from '../../src/shared/types'
 
 export default function AdminCollectionsScreen() {
   const router = useRouter()
-  const { collections, loading, refetch } = useCollections()
+  const { data: collections = [], isLoading: loading, refetch } = useCollections()
   const [updatingId, setUpdatingId] = useState<string | null>(null)
 
   const handleDelete = (collection: Collection) => {
@@ -56,7 +56,7 @@ export default function AdminCollectionsScreen() {
       </View>
 
       <ScrollView style={styles.content}>
-        {collections.map((collection) => (
+        {collections.map((collection: Collection) => (
           <View key={collection.id} style={styles.collectionCard}>
             <View style={styles.iconContainer}>
               <Text style={styles.icon}>{collection.icon}</Text>