feat: fetch moderator avatars via API proxy with initials fallback

style: premium redesign of the Moderation tab matching reference

fix: race condition for stats loading when user is authorized

refactor: modularize client App.jsx tab components and update Netlify CSP

feat: global roles migration, VIP badges, role backfiller script

Optimize KPI cards to request overall stats summary from /api/stats/summary and display true totals.

fix: prevent full-screen spinner on background stream polls

feat: host Google Fonts locally and tighten Content Security Policy

feat: adjust center group threshold to 250 for chat words

fix: scale down word cloud rendering for low absolute frequency words

fix: enforce mobile 1-col layout and prevent horizontal blowout

fix: resolve mobile layout swipe and word cloud scaling

style: make dashboard layout responsive for mobile devices

chore: add Google Search Console verification meta tag

chore: replace Render reference with generic cloud server reference in loading screen

fix: use fully qualified API_BASE for avatar proxy requests

perf: optimize stats polling and add React ErrorBoundary for frontend crash fallback

feat: prepare transition to decoupled hosting (Render + Netlify + Supabase)