feat: support reasoning models like DeepSeek R1

composables/useAiProvider.ts

@@ -1,14 +1,18 @@
-import { createOpenAI } from '@ai-sdk/openai'
+import { createDeepSeek } from '@ai-sdk/deepseek'
+import { extractReasoningMiddleware, wrapLanguageModel } from 'ai'
 
 export const useAiModel = () => {
   const config = useConfigStore()
   switch (config.config.ai.provider) {
     case 'openai-compatible':
-      const openai = createOpenAI({
+      const deepseek = createDeepSeek({
         apiKey: config.config.ai.apiKey,
         baseURL: config.aiApiBase,
       })
-      return openai(config.config.ai.model)
+      return wrapLanguageModel({
+        model: deepseek(config.config.ai.model),
+        middleware: extractReasoningMiddleware({ tagName: 'think' }),
+      })
     default:
       throw new Error(`Unknown AI provider: ${config.config.ai.provider}`)
   }