docs: harmonize project memories with current codebase state

docs: harmonize project memories with current codebase state

- Add UI Common and CLI sections to all 4 memories
- Fix UI Common build = typecheck (source-only package, no artifacts)
- Fix monorepo description: 4 TS packages (pnpm) + 1 Python (Poetry)
- Fix OCPP Server coverage threshold column placement
- Flag Vitest watch mode in commands and checklist
- Add Zod dependency and config validation convention
- Fix source tree comment (3 transports, not 2)
- Update CI matrix to Python 3.13/3.14
- Add CLI conventions (factory pattern, payload helpers, short hash, output)
- Add UI Common conventions (canonical types, no re-exports, errors)
- Add per-framework testing conventions (root strict vs ui assert vs vitest)
- Refactor checklist to remove command duplication with suggested_commands
- Fix README references to actual project files