- Fixed /api/admin/payment-system/status to query user_crypto_wallets instead of non-existent crypto_addresses table
- Fixed /api/admin/payment-system/status to query payment_transactions instead of non-existent payments table
- Fixed /api/admin/payment-system/config to query crypto_price_sources correctly (by name, not crypto_type)
- Removed duplicate/orphaned SQL code that was causing syntax errors
- Added try-catch blocks to gracefully handle missing tables during initial setup
- API now returns proper data structure matching frontend expectations