Easy Invoice - Backport bug fixes from Request Commerce

[MantisClone]

Problem

Request Commerce is being sunset. Some bug fixes were implemented in Request Commerce that were never backported to Easy Invoice.

Proposed Solution

1. Identify all bug fixes in Request Commerce that don't exist in Easy Invoice ✅
2. Backport those fixes to Easy Invoice
3. Archive the Request Commerce repository

Bug Fixes to Backport

File	Fix	PR Reference
next.config.mjs	Add typedRoutes: true experimental feature for compile-time route checking	Commerce #8
src/components/invoice/invoice-form/invoice-form.tsx	Add crypto-to-fiat validation - show error if enabled but no payment method selected	Commerce #9
src/components/invoice/invoice-form/invoice-form.tsx	Layout fix: change flex items-start to flex items-end for invoice item row alignment	Commerce #9
src/app/(dashboard)/home/page.tsx	Route fix: change /payments to /payouts	Commerce #8
src/app/(dashboard)/subscriptions/_components/subscription-plan-link.tsx	Use typed route paths with as const for type safety	Commerce #8
src/app/(dashboard)/invoices/me/_components/invoice-me-link.tsx	Use typed route paths with as const for type safety	Commerce #8
src/components/version-badge.tsx	Use <a> tag with rel="noopener noreferrer" for external links instead of Next.js Link	Commerce #8
src/components/header.tsx	Use <a> tag with rel="noopener noreferrer" for external links	Commerce #8

Considerations

• The repos diverged in both directions - Easy Invoice also has improvements Commerce doesn't have (better schema validation with superRefine, due date validation, payout confirmation components)
• After backporting, archive the Request Commerce repository
• Marketing needs Easy Invoice working well before website launch (end of Feb/early March)
• The typed routes changes require enabling typedRoutes: true in next.config first