The new index on the `user_id` column in the `profiles` table improves query performance when filtering or joining by user identifier, reducing full table scans during profile retrieval operations.
- Inserted <meta name="description"> tag with site summary
- Added Open Graph (og:title, og:description, og:image) and Twitter Card meta tags to index.html head
- Ensures search engines and social platforms display rich previews
The parse function now checks for empty input at the top and returns immediately, avoiding unnecessary processing overhead for trivial cases. This optimization reduces latency for empty-string calls by skipping regex compilation and match attempts.
