- mockminio: in-memory ObjectStorage with all 11 methods, thread-safe, SHA256 ETag, Range support
- mockslurm: httptest server with 11 Slurm REST API endpoints, job eviction from active to history queue
- testenv: one-line test environment factory (SQLite + MockSlurm + MockMinIO + all stores/services/handlers + httptest server)
- integration tests: 37 tests covering Jobs(5), Cluster(5), App(6), Upload(5), File(4), Folder(4), Task(4), E2E(1)
- no external dependencies, no existing files modified
