Kyubi v31.0-a4b456ba

Kyubi rolling build — commit a4b456baa8fa6602edf658743d872aacbb0af927 (core compat 31000).
Emulator-only Magisk (Magisk Delta / Kitsune lineage), system-mode install.
The APK's version name is 31.0-kitsune.<short-sha>, ending with the same
short commit SHA as this tag, so the tag and the installed version agree.

Prerelease: CI verifies the build shape and that it installs/launches, but
does NOT run the offline system-mode root install (BlueStacks-specific).
Treat as a candidate until validated on a real emulator instance.

x86 + x86_64 only — no ARM, no magiskboot/boot-image path. Built-in
Zygisk is removed for security; use ReZygisk (Kyubi's DenyList feeds it).
Only the cert-verified release APKs are attached; debug APKs stay private.

• app-release.apk — Kyubi manager (install this)
• stub-release.apk — cert-pinned hidden-manager stub