format: apply repo prettier (3.8.1) to the folded skills tree

963 markdown files reformatted with the repository's pinned prettier so
pnpm format:check covers the folded tree like every other repo file.

The formatter's embedded-language pass also normalized code fences
(TS semicolons, closed HTML tags in examples, lowercased CSS hex colors,
one renumbered list that skipped an index). Alphanumeric token deltas vs
the fold commit were audited file-by-file; all are formatter-equivalent
markup normalizations plus the four sanitized skills.

packages/mosaic/framework/skills/next-best-practices/data-patterns.md

@@ -33,17 +33,20 @@ async function UsersPage() {
   const users = await db.user.findMany();
 
   // Or fetch from external API
-  const posts = await fetch('https://api.example.com/posts').then(r => r.json());
+  const posts = await fetch('https://api.example.com/posts').then((r) => r.json());
 
   return (
     <ul>
-      {users.map(user => <li key={user.id}>{user.name}</li>)}
+      {users.map((user) => (
+        <li key={user.id}>{user.name}</li>
+      ))}
     </ul>
   );
 }
 ```
 
 **Benefits**:
+
 - No API to maintain
 - No client-server waterfall
 - Secrets stay on server
@@ -89,12 +92,14 @@ export default function NewPost() {
 ```
 
 **Benefits**:
+
 - End-to-end type safety
 - Progressive enhancement (works without JS)
 - Automatic request handling
 - Integrated with React transitions
 
 **Constraints**:
+
 - POST only (no GET caching semantics)
 - Internal use only (no external access)
 - Cannot return non-serializable data
@@ -122,12 +127,14 @@ export async function POST(request: NextRequest) {
 ```
 
 **When to use**:
+
 - External API access (mobile apps, third parties)
 - Webhooks from external services
 - GET endpoints that need HTTP caching
 - OpenAPI/Swagger documentation needed
 
 **When NOT to use**:
+
 - Internal data fetching (use Server Components)
 - Mutations from your UI (use Server Actions)
 
@@ -138,8 +145,8 @@ export async function POST(request: NextRequest) {
 ```tsx
 // Bad: Sequential waterfalls
 async function Dashboard() {
-  const user = await getUser();        // Wait...
-  const posts = await getPosts();      // Then wait...
+  const user = await getUser(); // Wait...
+  const posts = await getPosts(); // Then wait...
   const comments = await getComments(); // Then wait...
 
   return <div>...</div>;
@@ -151,11 +158,7 @@ async function Dashboard() {
 ```tsx
 // Good: Parallel fetching
 async function Dashboard() {
-  const [user, posts, comments] = await Promise.all([
-    getUser(),
-    getPosts(),
-    getComments(),
-  ]);
+  const [user, posts, comments] = await Promise.all([getUser(), getPosts(), getComments()]);
 
   return <div>...</div>;
 }
@@ -238,7 +241,7 @@ async function Page() {
 }
 
 // Client Component
-'use client';
+('use client');
 function ClientComponent({ initialData }) {
   const [data, setData] = useState(initialData);
   // ...
@@ -256,7 +259,7 @@ function ClientComponent() {
 
   useEffect(() => {
     fetch('/api/data')
-      .then(r => r.json())
+      .then((r) => r.json())
       .then(setData);
   }, []);
 
@@ -289,9 +292,9 @@ function ClientComponent() {
 
 ## Quick Reference
 
-| Pattern | Use Case | HTTP Method | Caching |
-|---------|----------|-------------|---------|
-| Server Component fetch | Internal reads | Any | Full Next.js caching |
-| Server Action | Mutations, form submissions | POST only | No |
-| Route Handler | External APIs, webhooks | Any | GET can be cached |
-| Client fetch to API | Client-side reads | Any | HTTP cache headers |
+| Pattern                | Use Case                    | HTTP Method | Caching              |
+| ---------------------- | --------------------------- | ----------- | -------------------- |
+| Server Component fetch | Internal reads              | Any         | Full Next.js caching |
+| Server Action          | Mutations, form submissions | POST only   | No                   |
+| Route Handler          | External APIs, webhooks     | Any         | GET can be cached    |
+| Client fetch to API    | Client-side reads           | Any         | HTTP cache headers   |