fix: production readiness — resolve build, lint, and code quality issues
- Fix Next.js build failure: remove duplicate route at (dashboard)/listings/[id]
that conflicted with (public)/listings/[id] (same URL path in two route groups)
- Fix 772 ESLint errors: auto-fix import ordering (import-x/order), remove unused
imports/variables, convert empty interfaces to type aliases, replace require()
with ESM imports, fix consistent-type-imports violations
- Add CLAUDE.md for developer onboarding documentation
- All checks pass: 0 lint errors, typecheck clean, 230 tests passing, build success
Co-Authored-By: Paperclip <noreply@paperclip.ing>
2502aa69b7