[argszero]

Summary

ERR_MAP in ui/js/i18n.js maps the backend's Chinese error strings to English translation keys. Several messages returned on paths a user can actually reach were never wired into it, so English-mode users saw raw Chinese.

The clearest case is an orphaned key: err.network is defined in both packs, and its Chinese value is exactly the literal api.js passes to mapErr on a network failure (ui/js/api.js:66) — but no ERR_MAP entry referenced it. The translation existed and was unreachable:

EN user, network failure — before: "网络不可用，请检查后端服务是否启动"
EN user, network failure — after : "Network unavailable, please check if the backend service is running"

Covered in this PR, each on a path the console actually calls:

key	literal	source
err.network (key already existed)	网络不可用，请检查后端服务是否启动	api.js:66 network failure
err.emailNotRegistered	该邮箱未注册	auth/reset_password (src/routes/mod.rs:388) — forgot-password form
err.raisePending	已有待审批的加额申请，请等待管理员处理	raise_requests/create
err.raiseHandled	该申请已处理	raise_requests approve/reject
err.codeSendFail	验证码发送失败，请重试	auth/login 502
err.modelExists	模型已存在（provider+model 唯一）	admin/models create/patch
err.negativePrice	价格不能为负数	admin/models create/patch

Six new keys were added to both packs (769 → 775, ZH == EN); err.network already existed and only needed wiring. Coverage of the 40 production backend error strings goes from 18 → 24.

Related Issue

Changes

• ui/js/i18n.js — six new err.* keys in both packs; seven new ERR_MAP entries (kept longest-first, per the ordering convention established in fix(ui): resolve backend error messages by longest match instead of first match #164).
• ui/index.html — cache-bust ?v=20260911-9 → -10 (5 references).

Tests

• cargo test — 148 passed; 0 failed
• cargo fmt --check — clean
• cargo clippy --all-targets -- -D warnings — clean
• node --check on all four ui/js/*.js — clean
• Key parity verified on the evaluated module (not a regex over source): 775 == 775, no duplicates, no one-sided keys

Behavioural verification (no JS test runner exists in this repo — its convention is Rust #[cfg(test)] and CI runs fmt/clippy/test only, so none was added):

• Compared against the true pre-fix baseline taken from git show HEAD:ui/js/i18n.js, replaying every real message through the real mapErr in EN mode: exactly 7 messages change, all from raw Chinese to English, 0 regressions. (err.network is a single merged entry covering two sources, so it counts once — hence 7 changed vs 7 cases listed above.)
• Controls: zh-mode passthrough ✅, unmatched-message passthrough ✅, null passthrough ✅, and a previously-wired key still translating ✅.
• Spot-checked that unchanged messages are still English (点数余额不足, 该邮箱已注册, 模型不存在, 验证码错误).

Checklist

• Branch naming follows the convention (fix/<description>)
• Commit message uses Conventional Commits (fix(ui): …)
• Single responsibility, minimal diff (2 files, +24/−5)

Deliberately NOT covered

To keep this honest rather than exhaustive, the remaining unmapped strings are defensive validation on URLs/states the console never generates — wallet type 必须为… / ISO-8601 params, sharing status 必须为…, admin-models field validators, org field validators, gateway body validators — plus one expired-session literal that is never displayed (__atpLogout shows a different message). They fail closed as raw Chinese. Happy to cover any of them if you'd rather have full coverage.