[LXD-8]

Summary

This PR completes Simplified Chinese (zh-Hans) localization for the native macOS app, and on top of that refines the web admin console that was already made complete by @NirvanaCh7 in #2415.

1. Native macOS app UI — full coverage (the main contribution)

• File: apps/omlx-mac/Resources/Localizable.xcstrings
• Coverage went from ~3% (27 strings, as of v0.5.4) to 99% (1144 / 1159 strings).
• The remaining ~1% are intentionally left in English: product/tool names (Claude Code, Codex, oMLX, LM Studio…), mode names (adaptive, ddtree, dflash), and placeholder samples (sk-omlx-sub-…, profile-name).

2. Web admin console — refinement on top of #2415

• File: omlx/admin/i18n/zh.json (970 keys, key set matches en.json)
• Extends the already-complete dashboard Chinese with a stricter, consistent terminology standard (see below) and a handful of newly-added context-benchmark strings.

Terminology standard applied (both surfaces)

• token disambiguated: LLM tokens → 词元; auth tokens → 令牌 (e.g. HuggingFace 令牌).
• AI inference terms use 中文（English）: 闪电多级词元预测（Lightning MTP）, 视觉语言模型多级词元预测（VLM MTP）, 推测解码（DFlash）, 稀疏预填充（SpecPrefill）, 首词元延迟（TTFT）, 每词元延迟（TPOT）, 预填充 TPS（PP TPS）.
• Sampling params use a symmetric form: Top-P 采样 / Top-K 采样.
• Non-AI base terms kept in English: CPU / GPU / RAM / SSD / HTTP / HTTPS / TLS / API / JSON.
• Abbreviations annotated: 可缩放矢量图形（SVG）, 内存不足（OOM）.
• Language names in the picker keep their native script (English, 日本語, Español, Русский, …).

Checks performed before submitting

• Key set unchanged — Localizable.xcstrings key set is identical to main (1159 keys); no keys added or removed, so no upstream strings are dropped. zh.json key set matches en.json exactly (970 keys).
• Placeholder integrity — every %@ / %lld / positional (%1$@) placeholder present in the English source is preserved in the Chinese translation (0 mismatches in either file).
• No code / template changes — the diff touches only the two localization resource files. No .swift, .py, .html, or .js files modified.
• No empty values for translated strings — every English string that should be translated has a Chinese value; the few untranslated entries are deliberately English product/placeholder names.

Files changed

• apps/omlx-mac/Resources/Localizable.xcstrings — native macOS UI (value-only edits, key structure untouched)
• omlx/admin/i18n/zh.json — web admin console (value-only edits, key set matches en.json)

No code, templates, or identifiers were modified — only display strings.

🤖 Generated with Claude Code

[LXD-8]

Superseded by #2481 (clean single-commit PR from current main).