feat(cfold): canonicalize custom test layout

tests/lasuite-drive/ops.py

@@ -14,14 +14,14 @@ from harness import lifecycle  # noqa: E402
 
 
 def pre_install(ctx):
-    """Post-deploy seed for the custom tier (the former setup_custom_tests.sh, moved here in rcust
+    """Post-deploy seed for the custom tier (the former post-deploy setup hook, moved here in rcust
     P2b — install_steps.sh runs PRE-deploy and cannot touch the live stack). The deploy alone does
     NOT create the MinIO bucket: `minio-createbuckets` is a `replicas:0` one-shot (restart_policy:
     none) that must be triggered. The MinIO storage test asserts the bucket exists, so trigger it
     here and poll. `--detach` is REQUIRED: the job creates the bucket then EXITS 0, so it never
     holds a steady 1/1 replica — a blocking scale would wait forever.
 
-    BEST-EFFORT, like the setup_custom_tests.sh it replaced: on poll timeout we WARN and continue
+    BEST-EFFORT, like the old post-deploy hook it replaced: on poll timeout we WARN and continue
     (the one-shot often lands just after the window). The custom-tier MinIO storage test is the
     real gate for a genuinely missing bucket — failing the install op here was an rcust M2
     regression (the original hook fell through on timeout by design)."""