refactor(chatbot): integrate OpenAI service into chatbot implementations

- Updated various chatbot services (Typebot, Dify, EvolutionBot, Flowise, N8n) to include the OpenAI service for audio transcription capabilities.
- Modified constructors to accept OpenaiService as a dependency, enhancing the ability to transcribe audio messages directly within each service.
- Refactored the handling of `keywordFinish` in multiple controllers and services, changing its type from an array to a string for consistency and simplifying logic.
- Removed redundant audio transcription logic from the base service, centralizing it within the OpenAI service to improve maintainability and reduce code duplication.

This commit focuses on enhancing the chatbot services by integrating OpenAI's transcription capabilities, improving code structure, and ensuring consistent handling of session keywords.

src/api/integrations/chatbot/openai/controllers/openai.controller.ts

@@ -176,7 +176,7 @@ export class OpenaiController extends BaseChatbotController<OpenaiBot, OpenaiDto
       await this.settings(instance, {
         openaiCredsId: data.openaiCredsId,
         expire: data.expire || 300,
-        keywordFinish: data.keywordFinish || 'bye,exit,quit,stop',
+        keywordFinish: data.keywordFinish || 'bye',
         delayMessage: data.delayMessage || 1000,
         unknownMessage: data.unknownMessage || 'Sorry, I dont understand',
         listeningFromMe: data.listeningFromMe !== undefined ? data.listeningFromMe : true,
@@ -385,7 +385,7 @@ export class OpenaiController extends BaseChatbotController<OpenaiBot, OpenaiDto
       });
 
       // Convert keywordFinish to string if it's an array
-      const keywordFinish = Array.isArray(data.keywordFinish) ? data.keywordFinish.join(',') : data.keywordFinish;
+      const keywordFinish = data.keywordFinish;
 
       // Additional OpenAI-specific fields
       const settingsData = {

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

@@ -114,12 +114,9 @@ export class OpenaiService extends BaseChatbotService<OpenaiBot, OpenaiSetting>
       }
 
       // Handle keyword finish
-      const keywordFinish = settings?.keywordFinish?.split(',') || [];
+      const keywordFinish = settings?.keywordFinish || '';
       const normalizedContent = content.toLowerCase().trim();
-      if (
-        keywordFinish.length > 0 &&
-        keywordFinish.some((keyword: string) => normalizedContent === keyword.toLowerCase().trim())
-      ) {
+      if (keywordFinish.length > 0 && normalizedContent === keywordFinish.toLowerCase()) {
         if (settings?.keepOpen) {
           await this.prismaRepository.integrationSession.update({
             where: {