Backend:
- Add Kimi OAuth service (InitiateDeviceAuth, PollToken, RefreshToken)
- Add Kimi token provider with caching and auto-refresh
- Add Kimi gateway service for OpenAI-compatible chat completions
- Add admin routes for /kimi/oauth/* endpoints
- Wire up all new services
- Add PlatformKimi to error passthrough rule constants
- Add 'kimi' to group handler platform validation tags
- Fix httpclient usage in Kimi OAuth service (use GetClient with opts)
- Add CanRefresh method to KimiTokenRefresher
- Remove duplicate ProvideKimiTokenProvider from wire ProviderSet
- Remove unused imports
- Lower go.mod requirement to 1.26.1 for local toolchain compatibility
- Add verification_uri_complete support for seamless device auth
Frontend:
- Add useKimiOAuth composable for device flow
- Integrate Kimi device flow UI in CreateAccountModal Step 2
- Add kimi to GroupPlatform and AccountPlatform types
- Add i18n translations for device flow (zh/en)
- Fix Icon name lock-closed -> key
- Add kimi platform colors/styles to platformColors.ts
- Add kimi to AccountTableFilters platform options
- Add kimi to ChannelsView platformOrder
- Use verification_uri_complete for auto-filled user_code
[宪宪/Kimi-1.6🐾]
