[QA] ✅ VERIFIED - All requirements met. Implementation includes all 5 required methods (list_containers, get_container, create, delete, exec) plus 4 bonus methods (start, stop, restart, get_container_state). Unit tests: 18/18 passed (89% coverage). Integration tests properly structured. No bugs or security issues found. See /tmp/qa-CDEV-5.md for detailed report.

## Implementation Complete ### Changes Made 1. **app/services/incus.py** - New Incus REST API client service: - `IncusClient` async client using httpx with Unix socket transport - `Container` dataclass representing container instances - `ContainerState` dataclass for runtime state - `ExecResult` dataclass for exec command results - `IncusError` exception class Methods implemented: - `list_containers(filter_expr)` - List all containers with optional filter - `get_container(name)` - Get specific container by name - `get_container_state(name)` - Get container runtime state (pid, memory, etc.) - `create(name, image, ephemeral, config, devices, profiles, start)` - Create container - `delete(name, force)` - Delete container (force stops if running) - `exec(name, command, environment, cwd, user, group, wait)` - Execute command in container - `start(name)`, `stop(name, force, timeout)`, `restart(name, force, timeout)` 2. **tests/test_incus_service.py** - Comprehensive test coverage: - 18 unit tests with mocked httpx client - 5 integration tests (properly skipped when Incus socket unavailable) - Tests cover all API methods, error handling, and async operations 3. **tests/conftest.py** - Updated `is_incus_available()` to check socket access (not just binary existence) ### Verification - All 59 tests pass (5 integration tests skipped - no socket access) - Lint passes (`ruff check app tests`) - Uses httpx AsyncHTTPTransport with Unix socket as required