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

components/WelcomeBanner.tsx

@@ -1,14 +1,14 @@
 "use client";
 
-import { useSession } from "next-auth/react";
+import { authClient } from "@/lib/auth/client";
 
 interface WelcomeBannerProps {
   companyName?: string;
 }
 
 export default function WelcomeBanner({ companyName }: WelcomeBannerProps) {
-  const { data: session } = useSession();
-  const userName = session?.user?.name || "User";
+  const { data } = authClient.useSession();
+  const userName = data?.user?.name || "User";
   const currentTime = new Date();
   const hour = currentTime.getHours();