Add portable ATVM skill and hardware prep docs

atvm/README.md

@@ -11,6 +11,8 @@ This folder contains the ATVM setup workflow, ATVM Cypress automation workflow,
   - `docs/workflow/conventions.md`
 - Environment inventory and credentials:
   - `inventory/overview.md`
+- Portable Codex skill:
+  - `../skills/atvm/`
 
 ## Layout
 - `scripts/`
@@ -25,6 +27,7 @@ This folder contains the ATVM setup workflow, ATVM Cypress automation workflow,
   - environment inventory, credentials, reserved IPs, and reference maps
 - `archive/imported-notes/`
   - preserved original long-form notes that were reorganized into the current structure
+  - includes `README.md` identifying the canonical imported note
 
 ## Practical Guidance
 - Use `guide.md` files for authoritative workflow behavior.
@@ -33,3 +36,4 @@ This folder contains the ATVM setup workflow, ATVM Cypress automation workflow,
 - For detailed ATVM automation test results, especially per-host failures, use `/root/cdc-e2e-cyp-12.17.4/cypress/cmcReporter` on the automation controller.
 - Use `inventory/` for persistent environment information such as hosts, credentials, and IP assignments.
 - Use `archive/imported-notes/` when you need the original full historical notes in their original layout.
+- Keep `../skills/atvm/` aligned when ATVM workflow rules need to be portable outside this workspace.