Add Behave BDD scenarios covering:
- ServerLifecycle.start() with mocked uvicorn (full lifecycle)
- run_server() convenience function with Settings defaults and overrides
- Signal handler installation and non-main-thread edge case
- TeamCollaborationService validation edge cases (empty args)
- SessionRegistry validation edge cases and get_active_sessions
- VersionConflictError negative version validation
- Untracked resource version stamp creation path
These tests cover previously uncovered validation branches and the
server lifecycle start/shutdown paths to maintain >=97% coverage.
Implemented multi-user connection handling with user identity tracking
(TeamMember with owner/admin/member/viewer roles), role-based access
control (TeamPermission with read/write/admin/manage_members), concurrent
session support (SessionRegistry with thread-safe locking and per-user/
per-project queries), and optimistic-locking conflict resolution
(VersionStamp with last-writer-wins, reject, and merge strategies).
Added TeamCollaborationService as the central orchestrator for all
collaboration operations: team membership management, permission
enforcement, session lifecycle, and version-stamp conflict detection/
resolution. The service cleans up user sessions when members are removed.
Domain models follow existing patterns: Pydantic BaseModel with
ConfigDict, StrEnum enums, ULID identifiers, and an error hierarchy
rooted in TeamCollaborationError.
Includes 48 Behave BDD scenarios (178 steps) covering all models,
service operations, and edge cases, plus 15 Robot Framework integration
tests for end-to-end workflow validation.
ISSUES CLOSED: #863
freemo