* test(utils): add rustfs-test-utils crate, absorb heal/iam ECStore bootstrap
backlog#1153 infra-1. The ~50-line "build a real temp-disk ECStore"
bootstrap was copy-pasted (and drifting) across the heal and iam
integration tests. This adds crates/test-utils (rustfs-test-utils, a
dev-dependency-only crate) owning that bootstrap and converts the four
copies into thin wrappers:
- TestECStoreEnvBuilder: disk_count (default 4), prefix (uuid-suffixed
/tmp dir), base_dir (caller-owned dir, e.g. tempfile::TempDir),
init_bucket_metadata (default true; the iam bootstrap test opts out
to preserve its historical semantics). TestECStoreEnv exposes
temp_root/disk_paths/ecstore plus a versioned-bucket helper, and
init_tracing() replaces the per-file Once blocks.
- All rustfs_ecstore imports stay behind src/ecstore_test_compat.rs,
the sanctioned test-compat boundary pattern (mirrors
crates/iam/tests/ecstore_test_compat).
- heal: heal_integration_test / heal_b5_versioned_regression_test /
heal_b920_subquorum_union_test drop their setup_test_env{,_n} copies
for heal_env{,_n} wrappers; the tests/storage_api.rs integration
surface shrinks to what test bodies still touch.
- iam: iam_bootstrap_no_lock_test drops build_local_ecstore; its
ecstore_test_compat fixture shrinks to SetupType +
update_erasure_type.
rg 'async fn setup_test_env' crates/heal crates/iam now returns 0.
Scanner's lifecycle tests are deliberately NOT absorbed (gated on
ilm-1; 14 of 15 are #[ignore]d today). Net -230 lines.
* fix(heal): drop tokio::fs import orphaned by the b920 bootstrap move
* fix(heal): drop tokio::fs import orphaned by the b5 bootstrap move
Henry Guo