fix(omp): wire OMP into install.sh's CLI detection (it had none)

Every other CLI (claude/opencode/codex/gemini/antigravity/pi/grok/dsh) has
a check_*/get_*_path pair wired into install.sh's detection loop and the
"no AI CLI found" aggregate checks. OMP had neither -- a user with only
omp installed would be told no CLI was found and offered to install
Claude Code or OpenCode.

Added OMP_SEARCH_PATHS (mirrors src/utils/omp-cli-resolver.ts's
OMP_SEARCH_DIRS) and check_omp()/get_omp_path(), wired into both
aggregate conditions (the interactive install-menu trigger and the
end-of-run reminder) and added omp's real vendor curl one-liner to the
reminder block. The DeepSeek Harness line was never in that reminder to
begin with -- confirmed it has no vendor one-liner (dsh installs via
Codeman's own API after the server is already up), so it stays out, with
an explanatory line instead.

Also fixed the "Skip" menu text, which was missing Gemini and DeepSeek
Harness from its example list independent of the omp gap, and the same
stale sibling-CLI-list bug (missing DeepSeek Harness and OMP, "the
eight"/"这七个") in README.md and the repo's existing README.zh-CN.md.

README.md

@@ -68,7 +68,7 @@ This installs Node.js, tmux and a build toolchain if missing (node-pty ships no
 - **Re-run to update.** The same one-liner updates a finished install in place: local changes in `~/.codeman/app` are stashed (never discarded), and a running service is restarted and verified. If a first install was interrupted, re-running resumes the full setup instead. `install.sh update` and `install.sh uninstall` also exist.
 - **CI / headless:** without a terminal attached, steps that would change your system abort with instructions instead of running silently. Set `CODEMAN_NONINTERACTIVE=1` to approve them for automation.
 
-You'll need at least one AI coding CLI installed — [Claude Code](https://docs.anthropic.com/en/docs/claude-code), [OpenCode](https://opencode.ai), [Codex](https://developers.openai.com/codex/cli), [Antigravity](https://antigravity.google), [Gemini CLI](https://github.com/google-gemini/gemini-cli), [Pi](https://pi.dev), [Grok Build](https://github.com/xai-org/grok-build), or [OMP](https://github.com/can1357/omp) (any combination works; Gemini CLI is enterprise-only since Google's consumer cutover, and Antigravity is its successor). The installer detects whichever of the eight is present; if none is found, it offers to install Claude Code or OpenCode, or you can skip and install one yourself later. After install:
+You'll need at least one AI coding CLI installed — [Claude Code](https://docs.anthropic.com/en/docs/claude-code), [OpenCode](https://opencode.ai), [Codex](https://developers.openai.com/codex/cli), [Antigravity](https://antigravity.google), [Gemini CLI](https://github.com/google-gemini/gemini-cli), [Pi](https://pi.dev), [Grok Build](https://github.com/xai-org/grok-build), [DeepSeek Harness](https://github.com/deepseek-ai/deepseek-harness), or [OMP](https://github.com/can1357/oh-my-pi) (any combination works; Gemini CLI is enterprise-only since Google's consumer cutover, and Antigravity is its successor). The installer detects whichever of the nine is present; if none is found, it offers to install Claude Code or OpenCode, or you can skip and install one yourself later. After install:
 
 ```bash
 codeman web
@@ -171,7 +171,7 @@ launchctl bootstrap gui/$(id -u) ~/Library/LaunchAgents/com.codeman.web.plist
 wsl bash -c "curl -fsSL https://getcodeman.com/install | bash"
 ```
 
-Codeman requires tmux, so Windows users need [WSL](https://learn.microsoft.com/en-us/windows/wsl/install). If you don't have WSL yet: run `wsl --install` in an admin PowerShell, reboot, open Ubuntu, then install your preferred AI coding CLI inside WSL ([Claude Code](https://docs.anthropic.com/en/docs/claude-code), [OpenCode](https://opencode.ai), [Codex](https://developers.openai.com/codex/cli), [Antigravity](https://antigravity.google), [Gemini CLI](https://github.com/google-gemini/gemini-cli), [Pi](https://pi.dev), [Grok Build](https://github.com/xai-org/grok-build), or [OMP](https://github.com/can1357/omp)). After installing, `http://localhost:3000` is accessible from your Windows browser.
+Codeman requires tmux, so Windows users need [WSL](https://learn.microsoft.com/en-us/windows/wsl/install). If you don't have WSL yet: run `wsl --install` in an admin PowerShell, reboot, open Ubuntu, then install your preferred AI coding CLI inside WSL ([Claude Code](https://docs.anthropic.com/en/docs/claude-code), [OpenCode](https://opencode.ai), [Codex](https://developers.openai.com/codex/cli), [Antigravity](https://antigravity.google), [Gemini CLI](https://github.com/google-gemini/gemini-cli), [Pi](https://pi.dev), [Grok Build](https://github.com/xai-org/grok-build), [DeepSeek Harness](https://github.com/deepseek-ai/deepseek-harness), or [OMP](https://github.com/can1357/oh-my-pi)). After installing, `http://localhost:3000` is accessible from your Windows browser.
 
 </details>