009: Polish bacon fixes, OTA host scripts, and migration docs.

Restore disable_configstore, EuiccDisabler and thermal CDEV guards, branding
and rebuild/sync helpers; document device roles, laptop migration, and Gitea.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/chatgpt-context.md

@@ -1,5 +1,10 @@
 # ChatGPT conversation continuity
 
+> **Superseded on root strategy (2026-10-10).** Ship root is **Magisk** on
+> feature `009`. KernelSU-Next / “rootless then KSU” below is early chat intent
+> only. Resume: [`009-handoff-20261008.md`](009-handoff-20261008.md).
+> Constitution + `specs/009-axp-los23-port/spec.md` win on conflicts.
+
 Imported context: 2026-09-13 from [mi ROM](https://chatgpt.com/share/6aa718c6-c834-83ed-9e2d-2b18fc1ad141).
 
 This is a non-normative continuity note, not a replacement for the constitution