chore: prepare for deployment

packages/ai-assistant/src/providers/index.ts

@@ -2,6 +2,7 @@ import { createOpenAI } from '@ai-sdk/openai';
 import { createAnthropic } from '@ai-sdk/anthropic';
 import { createGoogleGenerativeAI } from '@ai-sdk/google';
 import { createMoonshotAI } from '@ai-sdk/moonshotai';
+import { createDeepSeek } from '@ai-sdk/deepseek';
 import type { LanguageModel } from 'ai';
 import { AIProvider, type AIProviderConfig } from '../types';
 
@@ -9,14 +10,16 @@ const DEFAULT_MODELS: Record<AIProvider, string> = {
   [AIProvider.OPENAI]: 'gpt-5.4-mini',
   [AIProvider.ANTHROPIC]: 'claude-sonnet-4-20250514',
   [AIProvider.GOOGLE]: 'gemini-3.1-flash-lite',
-  [AIProvider.MOONSHOT]: 'kimi-k2.6'
+  [AIProvider.MOONSHOT]: 'kimi-k2.6',
+  [AIProvider.DEEPSEEK]: 'deepseek-chat'
 };
 
 const PROVIDER_API_KEY_ENV: Record<AIProvider, string> = {
   [AIProvider.OPENAI]: 'OPENAI_API_KEY',
   [AIProvider.ANTHROPIC]: 'ANTHROPIC_API_KEY',
   [AIProvider.GOOGLE]: 'GOOGLE_API_KEY',
-  [AIProvider.MOONSHOT]: 'MOONSHOT_API_KEY'
+  [AIProvider.MOONSHOT]: 'MOONSHOT_API_KEY',
+  [AIProvider.DEEPSEEK]: 'DEEPSEEK_API_KEY'
 };
 
 /**
@@ -43,6 +46,10 @@ export function createModel(config: AIProviderConfig): LanguageModel {
       const moonshot = createMoonshotAI({ apiKey: config.apiKey });
       return moonshot(modelName);
     }
+    case AIProvider.DEEPSEEK: {
+      const deepseek = createDeepSeek({ apiKey: config.apiKey });
+      return deepseek(modelName);
+    }
     default:
       throw new Error(`Unsupported AI provider: ${config.provider}`);
   }
@@ -64,7 +71,7 @@ export function getProviderConfigForProvider(provider: AIProvider): AIProviderCo
  * Used by routes that don't take an explicit model (status check, title generation).
  */
 export function pickAnyConfiguredProvider(): AIProviderConfig | null {
-  const order: AIProvider[] = [AIProvider.GOOGLE, AIProvider.OPENAI, AIProvider.ANTHROPIC];
+  const order: AIProvider[] = [AIProvider.DEEPSEEK, AIProvider.GOOGLE, AIProvider.OPENAI, AIProvider.ANTHROPIC];
 
   for (const provider of order) {
     const config = getProviderConfigForProvider(provider);

packages/ai-assistant/src/types.ts

@@ -15,7 +15,8 @@ export const AIProvider = {
   OPENAI: 'openai',
   ANTHROPIC: 'anthropic',
   GOOGLE: 'google',
-  MOONSHOT: 'moonshot'
+  MOONSHOT: 'moonshot',
+  DEEPSEEK: 'deepseek'
 } as const;
 
 export type AIProvider = (typeof AIProvider)[keyof typeof AIProvider];