Claude Skills by conectlens

Fix performance issues in apps/arena for leaderboards, battles, rankings, vote/reaction summaries, and high-cardinality result pages.

Fix startup and session performance in apps/auth, including profile bootstrap, session hydration, repeated auth fetches, and unnecessary render waterfalls.

Use the CLI app for reproducible scale diagnostics, seed validation, benchmark execution, and performance investigation for Supabase and frontend-facing query paths.