feat: implement in memory repository package

[nichenqin]

No description provided.

[github-actions]

Synchronise monorepo dependency versions with syncpack

$ syncpack fix-mismatches
✓ package.json
✓ apps/backend/package.json
✓ apps/web/package.json
✓ packages/core/package.json
✓ packages/domain/package.json
- packages/eslint-config/package.json
✓ packages/trpc/package.json
- packages/tsconfig/package.json
✓ packages/ui/package.json
✓ repositories/in-memory-repository/package.json

$ syncpack format
- package.json
- apps/backend/package.json
- apps/web/package.json
- packages/core/package.json
- packages/domain/package.json
- packages/eslint-config/package.json
- packages/trpc/package.json
- packages/tsconfig/package.json
- packages/ui/package.json
✓ repositories/in-memory-repository/package.json

$ syncpack set-semver-ranges
✓ package.json
✓ apps/backend/package.json
✓ apps/web/package.json
✓ packages/core/package.json
✓ packages/domain/package.json
- packages/eslint-config/package.json
✓ packages/trpc/package.json
- packages/tsconfig/package.json
✓ packages/ui/package.json
✓ repositories/in-memory-repository/package.json