refactor(chatbot): streamline media message handling across chatbot services

- Removed redundant instance name references in EvolutionStartupService to enhance data consistency.
- Updated media message processing in various chatbot services to utilize base64 and mediaUrl more effectively, ensuring better handling of image messages.
- Improved overall code readability and maintainability by simplifying media handling logic.

src/api/integrations/chatbot/flowise/services/flowise.service.ts

@@ -5,6 +5,7 @@ import { Integration } from '@api/types/wa.types';
 import { ConfigService, HttpServer } from '@config/env.config';
 import { Flowise as FlowiseModel, IntegrationSession } from '@prisma/client';
 import axios from 'axios';
+import { isURL } from 'class-validator';
 
 import { BaseChatbotService } from '../../base-chatbot.service';
 import { OpenaiService } from '../../openai/services/openai.service';
@@ -82,17 +83,28 @@ export class FlowiseService extends BaseChatbotService<FlowiseModel> {
     }
 
     if (this.isImageMessage(content)) {
-      const contentSplit = content.split('|');
+      const media = content.split('|');
 
-      payload.uploads = [
-        {
-          data: contentSplit[1].split('?')[0],
-          type: 'url',
-          name: 'Flowise.png',
-          mime: 'image/png',
-        },
-      ];
-      payload.question = contentSplit[2] || content;
+      if (msg.message.mediaUrl || msg.message.base64) {
+        payload.uploads = [
+          {
+            data: msg.message.base64 || msg.message.mediaUrl,
+            type: 'url',
+            name: 'Flowise.png',
+            mime: 'image/png',
+          },
+        ];
+      } else {
+        payload.uploads = [
+          {
+            data: media[1].split('?')[0],
+            type: 'url',
+            name: 'Flowise.png',
+            mime: 'image/png',
+          },
+        ];
+        payload.question = media[2] || content;
+      }
     }
 
     if (instance.integration === Integration.WHATSAPP_BAILEYS) {