Introduce a comprehensive design system across WordPress and Laravel
to ensure visual consistency. Implement new financial reporting
capabilities and Excel export functionality within the Filament admin
panel.
- Add `DESIGN_SYSTEM.md` to define brand colors, typography, and spacing
- Implement `FinancialReport` page in Filament for transaction and
shipment summaries
- Add Excel export support for `ShipmentResource` and
`WalletTransactionResource` using Laravel Excel
- Refactor WordPress plugin and Filament CSS to utilize the new
design system variables
- Update project status to reflect new reporting and design milestones
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