chore: adjust TriggerType for OpenAI and Typebot integrations

Modifies the TriggerType enum to include a 'none' option and updates the OpenAI and Typebot services to handle this new option. Additionally, the services now require a trigger operator and value when the trigger type is set to 'keyword'.

Modified files:
- prisma/postgresql-schema.prisma
- src/api/integrations/openai/services/openai.service.ts
- src/api/integrations/typebot/services/typebot.service.ts

Untracked file:
- prisma/migrations/20240729115127_modify_trigger_type_openai_typebot_table/

prisma/migrations/20240729115127_modify_trigger_type_openai_typebot_table/migration.sql

@@ -0,0 +1,2 @@
+-- AlterEnum
+ALTER TYPE "TriggerType" ADD VALUE 'none';

prisma/postgresql-schema.prisma

@@ -36,6 +36,7 @@ enum TypebotSessionStatus {
 enum TriggerType {
   all
   keyword
+  none
 }
 
 enum TriggerOperator {