feat: add LongCat provider support (#10365)

* feat: add LongCat provider support

- Add LongCat to SystemProviderIds enum
- Add LongCat provider logo and configuration
- Configure API endpoints and URLs based on official docs
- Add two models: LongCat-Flash-Chat and LongCat-Flash-Thinking
- Update provider mappings for proper integration

The LongCat provider uses OpenAI-compatible API format and supports
up to 8K tokens output with daily free quota of 500K tokens.

Signed-off-by: LeaderOnePro <leaderonepro@outlook.com>

* feat: add migration for LongCat provider

- Add migration version 158 for LongCat provider
- Ensure existing users get LongCat provider on app update
- Follow standard migration pattern for simple provider additions

Signed-off-by: LeaderOnePro <leaderonepro@outlook.com>

---------

Signed-off-by: LeaderOnePro <leaderonepro@outlook.com>

src/renderer/src/config/models/default.ts

@@ -1804,5 +1804,19 @@ export const SYSTEM_MODELS: Record<SystemProviderId | 'defaultModel', Model[]> =
       provider: 'aionly',
       group: 'gemini'
     }
+  ],
+  longcat: [
+    {
+      id: 'LongCat-Flash-Chat',
+      name: 'LongCat Flash Chat',
+      provider: 'longcat',
+      group: 'LongCat'
+    },
+    {
+      id: 'LongCat-Flash-Thinking',
+      name: 'LongCat Flash Thinking',
+      provider: 'longcat',
+      group: 'LongCat'
+    }
   ]
 }

src/renderer/src/config/providers.ts

@@ -27,6 +27,7 @@ import InfiniProviderLogo from '@renderer/assets/images/providers/infini.png'
 import JinaProviderLogo from '@renderer/assets/images/providers/jina.png'
 import LanyunProviderLogo from '@renderer/assets/images/providers/lanyun.png'
 import LMStudioProviderLogo from '@renderer/assets/images/providers/lmstudio.png'
+import LongCatProviderLogo from '@renderer/assets/images/providers/longcat.png'
 import MinimaxProviderLogo from '@renderer/assets/images/providers/minimax.png'
 import MistralProviderLogo from '@renderer/assets/images/providers/mistral.png'
 import ModelScopeProviderLogo from '@renderer/assets/images/providers/modelscope.png'
@@ -622,6 +623,16 @@ export const SYSTEM_PROVIDERS_CONFIG: Record<SystemProviderId, SystemProvider> =
     models: SYSTEM_MODELS['poe'],
     isSystem: true,
     enabled: false
+  },
+  longcat: {
+    id: 'longcat',
+    name: 'LongCat',
+    type: 'openai',
+    apiKey: '',
+    apiHost: 'https://api.longcat.chat/openai',
+    models: SYSTEM_MODELS.longcat,
+    isSystem: true,
+    enabled: false
   }
 } as const
 
@@ -684,7 +695,8 @@ export const PROVIDER_LOGO_MAP: AtLeast<SystemProviderId, string> = {
   'new-api': NewAPIProviderLogo,
   'aws-bedrock': AwsProviderLogo,
   poe: 'poe', // use svg icon component
-  aionly: AiOnlyProviderLogo
+  aionly: AiOnlyProviderLogo,
+  longcat: LongCatProviderLogo
 } as const
 
 export function getProviderLogo(providerId: string) {
@@ -1290,6 +1302,17 @@ export const PROVIDER_URLS: Record<SystemProviderId, ProviderUrls> = {
       docs: 'https://www.aiionly.com/document',
       models: 'https://www.aiionly.com'
     }
+  },
+  longcat: {
+    api: {
+      url: 'https://api.longcat.chat/openai'
+    },
+    websites: {
+      official: 'https://longcat.chat',
+      apiKey: 'https://longcat.chat/platform/api_keys',
+      docs: 'https://longcat.chat/platform/docs/zh/',
+      models: 'https://longcat.chat/platform/docs/zh/APIDocs.html'
+    }
   }
 }
 

src/renderer/src/store/migrate.ts

@@ -2543,6 +2543,7 @@ const migrateConfig = {
   '158': (state: RootState) => {
     try {
       state.llm.providers = state.llm.providers.filter((provider) => provider.id !== 'cherryin')
+      addProvider(state, 'longcat')
       return state
     } catch (error) {
       logger.error('migrate 158 error', error as Error)

src/renderer/src/types/index.ts

@@ -322,7 +322,8 @@ export const SystemProviderIds = {
   voyageai: 'voyageai',
   'aws-bedrock': 'aws-bedrock',
   poe: 'poe',
-  aionly: 'aionly'
+  aionly: 'aionly',
+  longcat: 'longcat'
 } as const
 
 export type SystemProviderId = keyof typeof SystemProviderIds