Fix/order delete

[shipeast-beep]

Summary

Fixes #

Changes

Checklist

• Tests added/updated for new functionality
• npm run build passes (no TypeScript errors)
• npm run lint passes
• Database migrations are non-destructive (UPDATE, not DROP)
• Breaking changes documented (if any)
• Related issue linked above

Screenshots

[itsbkm]

Thanks for the PR. I can’t approve this as-is.

This mixes two unrelated changes: Czech receipt currency formatting and restoring an order deletion endpoint. Please split those into separate PRs.

The DELETE /api/orders/:id endpoint is risky as implemented:

• It hard-deletes orders, bills, print logs, WhatsApp records, and order items instead of using the existing cancellation lifecycle.
• It can bypass inventory restoration rules for active/pending order items, causing stock drift.
• It deletes transaction/audit history, which conflicts with the project’s data-safety expectations for POS records.
• It does not emit a cloud sync deletion/tombstone event, only notifyOrderUpdated().
• It has no regression tests or API docs.
• Several comments in main/routes/orders.ts are mojibake/garbled encoded text.

If order deletion is still needed, please define the intended policy first: hard delete only draft/unpaid orders, or soft-delete/void/archive behavior with inventory, bills, audit, cloud sync, and tests covered.