Fix China app installs and wire the CN AI stack into Install > AI

Offline installs ship no pacman sync db, so yay resolved official
repo dependencies as AUR packages and every catalog install failed;
omarchy-cn-app-install now runs a full -Syu first (verified end to
end: WeChat builds and installs in the VM). Kimi Code gains a real
installer command reused by the harness registry, the default-agent
path, and new Install > AI entries (Kimi Code, Deep Code, AI Hub),
and the AI Hub wizard offers to launch native harnesses immediately
so their official CLI login runs, matching how Claude Code works.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

default/omarchy/omarchy-menu.jsonc

@@ -240,11 +240,14 @@
   "install.terminal.ghostty": {"icon":"","label":"Ghostty","disabled":"omarchy-pkg-present ghostty","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-install-terminal ghostty'"},
   "install.terminal.kitty": {"icon":"","label":"Kitty","disabled":"omarchy-pkg-present kitty","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-install-terminal kitty'"},
   "install.ai.chatgpt": {"icon":"","iconFont":"omarchy","label":"ChatGPT Desktop","disabled":"omarchy-pkg-present openai-codex-desktop","action":"omarchy-launch-floating-terminal-with-presentation omarchy-install-ai-chatgpt"},
+  "install.ai.deep-code": {"icon":"󱚤","label":"Deep Code","disabled":"omarchy-cmd-present deepcode","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-mise-install npm:@vegamo/deepcode-cli deepcode && deepcode'"},
   "install.ai.dictation": {"icon":"","label":"语音听写","disabled":"omarchy-pkg-present voxtype-bin","action":"omarchy-launch-floating-terminal-with-presentation omarchy-voxtype-install"},
   "install.ai.grok-bot": {"icon":"","iconFont":"omarchy","label":"Grok Bot","disabled":"omarchy-pkg-present grok-bot","action":"omarchy-install-and-launch 'Grok Bot' grok-bot grok-bot"},
+  "install.ai.kimi-code": {"icon":"󱚤","label":"Kimi Code","disabled":"omarchy-cmd-present kimi","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-cn-kimi-install && kimi'"},
   "install.ai.lm-studio": {"icon":"","iconFont":"omarchy","label":"LM Studio","disabled":"omarchy-pkg-present lmstudio-bin","action":"omarchy-install-app 'LM Studio' lmstudio-bin"},
   "install.ai.ollama": {"icon":"","iconFont":"omarchy","label":"Ollama","disabled":"omarchy-cmd-present ollama","action":"if omarchy-cmd-present nvidia-smi; then ollama_pkg=ollama-cuda; elif omarchy-cmd-present rocminfo; then ollama_pkg=ollama-rocm; else ollama_pkg=ollama; fi; omarchy-install-app Ollama \"$ollama_pkg\""},
   "install.ai.t3-code": {"icon":"","iconFont":"omarchy","label":"T3 Code","disabled":"omarchy-pkg-present t3code-bin","action":"omarchy-install-and-launch 'T3 Code' t3code-bin t3code"},
+  "install.ai.cn-hub": {"icon":"󱚤","label":"国产模型组合 (AI Hub)","action":"omarchy-launch-floating-terminal-with-presentation omarchy-cn-ai-setup"},
   "install.gaming.steam": {"icon":"","label":"Steam","disabled":"omarchy-pkg-present steam","action":"omarchy-launch-floating-terminal-with-presentation omarchy-install-gaming-steam"},
   "install.gaming.retroarch": {"icon":"󰯉","label":"RetroArch","disabled":"omarchy-pkg-present retroarch","action":"omarchy-launch-floating-terminal-with-presentation omarchy-install-gaming-retroarch"},
   "install.gaming.minecraft": {"icon":"󰍳","label":"Minecraft","disabled":"omarchy-pkg-present minecraft-launcher","action":"omarchy-install-and-launch Minecraft minecraft-launcher minecraft-launcher"},