Deepseek does not work , I edit some codes.

Focus on the key sections and content, making it clean and modern.
[generate-ai-code-stream] - isEdit: false
[generate-ai-code-stream] - context.sandboxId: undefined
[generate-ai-code-stream] - context.currentFiles: none
[generate-ai-code-stream] - currentFiles count: 0
[generate-ai-code-stream] Backend file cache status:
[generate-ai-code-stream] - Has sandboxState: true
[generate-ai-code-stream] - Has fileCache: true
[generate-ai-code-stream] - File count: 0
[generate-ai-code-stream] - Has manifest: false

[generate-ai-code-stream] Starting streaming response...

[DeepSeek] Using API key: ****465b
[generate-ai-code-stream] Stream processing error: Error: DeepSeek API error: Unauthorized
at Object.streamText (app\api\generate-ai-code-stream\route.ts:104:8)
at async (app\api\generate-ai-code-stream\route.ts:1410:23)
102 |
103 | if (!response.ok) {
> 104 | throw new Error(`DeepSeek API error: ${response.statusText}`);
| ^
105 | }
106 |
107 | const data = await response.json();