Overhaul the app's color system by replacing all hardcoded Tailwind color classes with semantic theme variables to ensure consistent theming across all components, pages, and tests.
Additional changes:
- Add assigned date support for order item status updates: add `assignedDate` field to the order item status PATCH API, implement server-side normalization/validation, and add corresponding tests
- Refactor purchase order PDF workflows to use the consolidated `purchase_orders.documents` field instead of the legacy separate `purchase_order_pdfs` collection
- Fix quote number parsing and formatting to support both dashed (Q-YYYY-MM-NNN) and dashless (QYYYYMMNNN) formats
- Rename `driver_pool` item status to `collection_pool` across the codebase
- Add null handling for order item quantities and pricing to display "—" for missing values
- Improve filter tab styling: make mobile tabs scrollable, prevent text wrapping, hide scrollbar
- Add new utility scripts, API routes, migrations, and polish small UI/UX fixes including tsconfig updates and theme hook improvements
This commit overhauls the order management system to use item-level status tracking instead of a single order-level status:
- Remove deprecated `orders.status` field and add `invoiced` and quote match audit fields
- Add `isOrderComplete` utility with tests to validate fully delivered orders
- Add purchase order PDF rendering support and tooling
- Add geo coordinate fields for companies/customers with map link UI
- Add REST management APIs for customers, companies, and suppliers
- Update customer/company services to use relation fields instead of free text
- Add status pill and tab filter components for item status visualization
- Add quote-to-order matching logic and unit tests
- Update all pages, components, and tests to match the new schema
- Include all required PocketBase migrations and schema updates
