feat: dark design system + full UI redesign + HTTPS for local dev

- Design system: CSS custom properties (surface levels, accent, status colors, scrollbar, focus-visible)
- Landing: hero with gradient title, feature cards with SVG icons
- Auth pages: consistent card layout with design tokens
- Dashboard: sticky top bar, room grid with status dots, empty state
- Create room: toggle switches, form validation with spinners
- Join flow: room info card with status badge, monospace code input
- Room page: top bar with sidebar toggles (chat/lobby/moderation)
- Chat: bubble messages with optimistic UI, empty state
- Moderation: participant list with avatar initials, kick/ban
- Lobby: waiting animation with pulsing rings, approve/reject
- HTTPS: dev:https script, setup.sh auto-configures BETTER_AUTH_URL
- Auth: trustedOrigins now includes both http:// and https://

setup.sh

@@ -1479,10 +1479,13 @@ OVERRIDE
   [[ -d ".next" ]] && rm -rf .next
   log_ok "Кеш очищен"
 
-  # Автоопределение BETTER_AUTH_URL (если не задан)
-  if ! grep -q "^BETTER_AUTH_URL=" .env 2>/dev/null; then
-    echo "BETTER_AUTH_URL=http://localhost:3000" >> .env
-    log_ok "BETTER_AUTH_URL=http://localhost:3000 добавлен в .env"
+  # Автоопределение BETTER_AUTH_URL (https для dev)
+  if grep -q "^BETTER_AUTH_URL=" .env 2>/dev/null; then
+    # Обновить на https если ещё http
+    sed -i 's|^BETTER_AUTH_URL=http://|BETTER_AUTH_URL=https://|' .env
+  else
+    echo "BETTER_AUTH_URL=https://localhost:3000" >> .env
+    log_ok "BETTER_AUTH_URL=https://localhost:3000 добавлен в .env"
   fi
 
   # Проверка порта 3000
@@ -1492,9 +1495,9 @@ OVERRIDE
 
   # Запуск
   echo ""
-  log_ok "${GREEN}${BOLD}Готово! Запускаю dev-сервер на порту 3000...${NC}"
+  log_ok "${GREEN}${BOLD}Готово! Запускаю dev-сервер (HTTPS) на порту 3000...${NC}"
   echo ""
-  exec npm run dev
+  exec npm run dev:https
 }
 
 # ============================================================