fix: resolve Prettier markdown code block parsing errors

- Fix syntax errors in skills markdown files (.github/skills, .opencode/skills)
- Change typescript to tsx for code blocks with JSX
- Replace ellipsis (...) in array examples with valid syntax
- Separate CSS from TypeScript into distinct code blocks
- Convert JavaScript object examples to valid JSON in docs
- Fix enum definitions with proper comma separation

.opencode/skills/vercel-react-best-practices/rules/rerender-defer-reads.md

@@ -13,14 +13,14 @@ Don't subscribe to dynamic state (searchParams, localStorage) if you only read i
 
 ```tsx
 function ShareButton({ chatId }: { chatId: string }) {
-  const searchParams = useSearchParams()
+  const searchParams = useSearchParams();
 
   const handleShare = () => {
-    const ref = searchParams.get('ref')
-    shareChat(chatId, { ref })
-  }
+    const ref = searchParams.get("ref");
+    shareChat(chatId, { ref });
+  };
 
-  return <button onClick={handleShare}>Share</button>
+  return <button onClick={handleShare}>Share</button>;
 }
 ```
 
@@ -29,11 +29,11 @@ function ShareButton({ chatId }: { chatId: string }) {
 ```tsx
 function ShareButton({ chatId }: { chatId: string }) {
   const handleShare = () => {
-    const params = new URLSearchParams(window.location.search)
-    const ref = params.get('ref')
-    shareChat(chatId, { ref })
-  }
+    const params = new URLSearchParams(window.location.search);
+    const ref = params.get("ref");
+    shareChat(chatId, { ref });
+  };
 
-  return <button onClick={handleShare}>Share</button>
+  return <button onClick={handleShare}>Share</button>;
 }
 ```