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

app/api/auth/[...path]/route.ts

@@ -0,0 +1,3 @@
+import { authApiHandler } from "@neondatabase/auth/next/server";
+
+export const { GET, POST } = authApiHandler();