Build the interactive language-switching path on top of the i18n
skeleton (#1). A LanguageSelectorComponent (ChoicePicker subclass)
offers Auto / English / 简体中文; /settings routes a new "Language"
entry to it. Selecting a language persists to tui.toml, updates app
state, flips the live i18n locale, and repaints so the UI switches
language immediately without a restart. /reload re-reads the language
and re-applies it via setAppState + i18n.setLocale alongside theme.

Closes #2

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Migrate the user-visible English strings in the reverse-RPC approval and
question panels to the i18n layer, with en + zh-CN translations under a new
`reverseRpc` namespace.

- Approval panel headers, choice buttons, danger labels, cwd/scope/more-lines
  metadata, and key hints now resolve via `i18n.t('reverseRpc.approval.*')`.
- Choice/danger labels are localized in the approval adapter at adapt time;
  `selected_label` stays a stable English identifier for the upstream contract.
- Question dialog heading, review/submit prompts, Other/Not-answered labels,
  submit actions, and hints resolve via `i18n.t('reverseRpc.question.*')`.
- Approval preview title and footer hints resolve via
  `i18n.t('reverseRpc.preview.*')`.
- Strings stay colored via `currentTheme`; no chalk named colors, and no
  coloring / printableChar() / keyboard behavior changes.

Locale-render tests assert the panels render in Simplified Chinese under
`zh-CN` and English under `en`.

Resolves #3.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Migrate builtin slash-command descriptions, the /help panel chrome
(title, dismiss hint, greeting, section headers, keyboard-shortcut
descriptions, scroll tail), and goal/swarm argument-completion
descriptions to the i18n layer, with en + zh-CN translations under a
new `commands` namespace.

Command names, aliases, and subcommand values stay untranslated —
only human-readable descriptions follow the active locale. Skill
command descriptions remain owned by the skill; only framework
builtins are localized via `localizedBuiltinSlashCommands()`.

Closes #4

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

…keleton

# Conflicts:
#	apps/kimi-code/package.json

Migrate the `/usage` and `/status` panel labels to the i18n layer with
`en` + `zh-CN` translations, extending the `components` namespace with
`usage` and `status`.

- usage-panel: session/context/plan section labels, input/output/total
  words, "% used", and empty-state strings now come from
  `i18n.t('components.usage.*')`.
- status-panel: field labels (Model, Directory, Permissions, Plan mode,
  Session, Title, Warning) and rendered values (on/off, not set, none,
  thinking) come from `i18n.t('components.status.*')`.
- Panel chrome titles (' Usage ' / ' Status ') are localized; model names
  and permission-mode identifiers stay untranslated.
- Add a `padEndToWidth` helper so the aligned label columns pad by display
  width, keeping the panels aligned under double-width Chinese characters.

Locale-render assertions verify both panels render Chinese under `zh-CN`
and English under `en`, plus alignment/width under `zh-CN`.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Migrate the welcome panel to the i18n layer (title, login/help hints,
unset-model notice, and the Directory/Session/Model/Version/MCP info
labels), padding the label column by display width so it stays aligned
under double-width Chinese.

Introduce a `common` namespace for short phrases shared across
components: the generic Submit/Cancel/Back controls plus the
navigate/select/cancel/clear-search key hints. Migrate the list-style
dialogs (model, choice, session, undo, experiments selectors) and the
plugin-remove Cancel button to `common.*` so each shared phrase is
translated once, with en + zh-CN translations.

Resolve #6

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Render the `tui.toml` parse-failure notice (INVALID_TUI_CONFIG_MESSAGE)
in the active locale. Config load runs before the language is known, so
run-shell now records only that parsing failed and translates the notice
after `i18n.setLocale(...)` resolves the locale — deferred init that
falls back to the default `en` pack before config load.

The `TuiConfigParseError.message` stays English so logs and issue triage
remain English; only the user-facing startup notice is localized.

Adds a `cli` i18n namespace (`cli.config.invalidTuiConfig`) for en and
zh-CN. Closes #7.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

…date thinking label