Add Pending Payment tab and rebrand to TeleShop Admin

- Added new 'Pending Payment' tab to show orders awaiting payment (4 orders)
- Rebranded admin panel from 'LittleShop Admin' to 'TeleShop Admin'
- Updated login page, layout, and dashboard with new branding
- Fixed visibility issue where PendingPayment orders had no tab
- All 13 orders are now visible across appropriate tabs

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

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