- Auto-seed default sections on first visit when none exist
- Every section now shows skeleton placeholders when empty (branches,
  partners, pricing, trainers, stats, schedule)
- Converted remaining dark sections to light theme (branches, trainers,
  pricing, contact, schedule) for consistency
- Stats band keeps dark bg for visual contrast
- Fresh deploy = beautiful skeleton website ready for client to imagine
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>