Roadmap

All milestones are done. Each was its own issue, branch, and PR. Backend issues #2–#6 ran one after another, while the frontend grid (#7) and the end-to-end setup (#8) were built in parallel against the agreed contract.

#	Issue	Deliverable	Fixes	Status
0	#1	docker-compose.yml (PostgreSQL 17); Spring Boot 4.1 app (Web MVC, JPA, Security, WebSocket, Validation, Flyway, Testcontainers); Vite React app; .gitattributes; GitHub Actions CI		✅ Merged (PR #9)
1	#2	Flyway migrations and seed data; JWT login; security configuration		✅ Merged (PR #11)
2	#3	GET /api/floors and the floor snapshot endpoint		✅ Merged (PR #13)
3	#4	Neighbour policy; booking and cancel; 409 error mapping	Problem 2	✅ Merged (PR #14)
3	#5	Locked check-and-save; concurrency tests	Problem 1	✅ Merged (PR #16)
4	#6	STOMP config; after-commit publisher; JWT check on WebSocket	Problem 3 (server side)	✅ Merged (PR #17)
5	#7	Login; floor grid; desk store; socket client; optimistic booking with rollback; accessibility	Problem 3 (client side)	✅ Merged (PR #12)
6	#8	Playwright tests in e2e/ (10 tests, run in CI); real commands in README.md, the CLAUDE.md files, and Getting Started		✅ Merged (PR #18)

Done before the milestones

Done	Item
✅	Problem statement and decisions (README.md)
✅	Shared rules and API contract (CLAUDE.md), per-part guidance (backend/CLAUDE.md, frontend/CLAUDE.md)
✅	Claude Code skills and agents (.claude/), .gitignore, changelogs
✅	Issues #1–#8, with area labels (backend, frontend, concurrency)