Add Milestones 1 & 2: full-stack POS foundation with admin UI

- Node/Express/TypeScript API under /api/v1 with JWT auth (login, refresh, logout, /me)
- Prisma schema: vendors, users, roles, products, categories, taxes, transactions
- SQLite for local dev; Postgres via docker-compose for production
- Full CRUD routes for vendors, users, categories, taxes, products with Zod validation and RBAC
- Paginated list endpoints scoped per vendor; refresh token rotation
- React/TypeScript admin SPA (Vite): login, protected routing, sidebar layout
- Pages: Dashboard, Catalog (tabbed Products/Categories/Taxes), Users, Vendor Settings
- Shared UI: Table, Modal, FormField, Btn, PageHeader components
- Multi-stage Dockerfile; docker-compose with Postgres healthcheck
- Seed script with demo vendor and owner account
- INSTRUCTIONS.md, ROADMAP.md, .claude/launch.json for dev server config

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/node_modules/math-intrinsics/CHANGELOG.md

@@ -0,0 +1,24 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.1.0](https://github.com/es-shims/math-intrinsics/compare/v1.0.0...v1.1.0) - 2024-12-18
+
+### Commits
+
+- [New] add `round` [`7cfb044`](https://github.com/es-shims/math-intrinsics/commit/7cfb04460c0fbdf1ca101eecbac3f59d11994130)
+- [Tests] add attw [`e96be8f`](https://github.com/es-shims/math-intrinsics/commit/e96be8fbf58449eafe976446a0470e6ea561ad8d)
+- [Dev Deps] update `@types/tape` [`30d0023`](https://github.com/es-shims/math-intrinsics/commit/30d00234ce8a3fa0094a61cd55d6686eb91e36ec)
+
+## v1.0.0 - 2024-12-11
+
+### Commits
+
+- Initial implementation, tests, readme, types [`b898caa`](https://github.com/es-shims/math-intrinsics/commit/b898caae94e9994a94a42b8740f7bbcfd0a868fe)
+- Initial commit [`02745b0`](https://github.com/es-shims/math-intrinsics/commit/02745b03a62255af8a332771987b55d127538d9c)
+- [New] add `constants/maxArrayLength`, `mod` [`b978178`](https://github.com/es-shims/math-intrinsics/commit/b978178a57685bd23ed1c7efe2137f3784f5fcc5)
+- npm init [`a39fc57`](https://github.com/es-shims/math-intrinsics/commit/a39fc57e5639a645d0bd52a0dc56202480223be2)
+- Only apps should have lockfiles [`9451580`](https://github.com/es-shims/math-intrinsics/commit/94515800fb34db4f3cc7e99290042d45609ac7bd)