🩹 fix(nutriphi-bot): use correct API field name for image analysis

Change 'image' to 'imageBase64' to match the NutriPhi backend API spec.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

services/matrix-nutriphi-bot/src/nutriphi/nutriphi.service.ts

@@ -152,7 +152,7 @@ export class NutriPhiService {
 	): Promise<AIAnalysisResult> {
 		return this.request<AIAnalysisResult>('/analysis/photo', {
 			method: 'POST',
-			body: JSON.stringify({ image: imageBase64, mimeType }),
+			body: JSON.stringify({ imageBase64, mimeType }),
 			token,
 		});
 	}