fix(ci): widen the locale hygiene gate to its blind spots

[orangeCatDeveloper]

Fixes #2672

Summary

Runtime Host handoff treated every non-English locale as Chinese, while classified bot failures switched a Chinese-only surface to English. Multiline native-dialog literals also escaped the locale hygiene gate.

The live shortcuts now use a typed catalog or an explicit surface locale. The ratchet also scans Runtime Host and complete source files, rejecting these shortcuts and literal native-dialog copy without requiring historical cleanup.

Verification

Known live wrong-language shortcuts: 2/2 before → 0/2 after.

Before

origin/main:apps/desktop/src/main/bot-incoming-main.ts:395:        : generalizedErrorMessage(error, '机器人对话处理失败');
origin/main:packages/runtime-host/src/client/host-handoff-copy.ts:33:  const zh = locale !== 'en';

After

0 matches

check-locale-hygiene                 passed
check-locale-hygiene.test.mjs        7 pass / 0 fail
npm run format:check                 2,099 files clean
CI test                              passed

The bot regression test renders the classified timeout in the surface locale:

Maka 暂时无法处理这条消息：请求超时

The native-dialog rule is intentionally source-based and install-free. It covers inline showOpenDialog and showSaveDialog string literals within 400 characters of the call; computed option objects remain outside its boundary.

AI use

Select exactly one:

• No generative tool made a substantive contribution
• Generative tooling made a substantive contribution

Tool(s) and scope: Claude Code and Codex — identified and repaired the locale shortcuts, extended the hygiene gate and tests, and updated the verification evidence. The commit carries the corresponding Generated-by trailers.

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No