Add an Install > China Apps menu shown only in China

plans/omarchycn.md

@@ -19,7 +19,7 @@ Progress source of truth for the `omarchycn` branches of `omarchy`, `omarchy-iso
 - [x] T3 Input method (PRD 3): rime-ice-installer patch and PKGBUILD in omarchy-pkgs, IME packages in `omarchy-other.packages`, install-time package add, user step runs the installer from bundled assets, ISO build bundles assets and the package
 - [x] T4 CJK fontconfig fix (PRD 4): rebuild PR 9693 on the current base
 - [x] T5 AI (PRD 5): Dim and Kimi Code for every region (rebuild PR 9694), Claude Code third-party provider setup shown only in China
-- [ ] T6 Developer mirrors (PRD 6): npm, PyPI/uv, Go, rustup, crates.io, RubyGems, Maven via system drop-ins under `default/region/china/`
+- [x] T6 Developer mirrors (PRD 6): npm, PyPI/uv, Go, rustup, crates.io, RubyGems, Maven via system drop-ins under `default/region/china/`
 - [ ] T7 China software (PRD 7): Install menu entry shown only in China
 - [ ] T8 Region switching and Chinese UI (PRD 8): `omarchy-region china|global`, Setup > Region, locale, Chinese menu overlay chosen by `LANG`
 - [ ] T9 Logo (PRD 9): stock Omarchy logo everywhere