* feat(models): add custom model name input with provider selector
- Add custom model input field at bottom of model selector modal
- Add provider dropdown to specify target provider for custom model
- Track custom models in app store and display with CUSTOM badge
- Merge custom model into provider group list
- Fix custom provider models being overwritten by API response (keep both)
* Upload screenshot
* fix(i18n): add i18n support for custom model feature in ModelSelector
Replace hardcoded English strings (CUSTOM badge, placeholder, hint) with
vue-i18n t() calls and add corresponding translation keys to all 8 locales
(en, zh, ja, ko, fr, es, de, pt).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: toller892 <892@users.noreply.github.com>
Co-authored-by: Tony <125938283+toller892@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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