refactor: update Flowise integration for improved configuration and validation

This commit refines the Flowise integration by enhancing configuration management and validation logic. Key changes include:
- Reordered parameters in the FlowiseService constructor for consistency.
- Updated FlowiseController to utilize the configService for integration enablement checks.
- Simplified FlowiseDto and FlowiseSettingDto by removing unused properties.
- Enhanced validation logic in flowise.schema.ts to include new fields.
- Improved error handling in the createBot method to prevent duplicate entries.

These updates contribute to a more robust and maintainable Flowise integration.

src/config/env.config.ts

@@ -270,6 +270,7 @@ export type Openai = { ENABLED: boolean; API_KEY_GLOBAL?: string };
 export type Dify = { ENABLED: boolean };
 export type N8n = { ENABLED: boolean };
 export type Evoai = { ENABLED: boolean };
+export type Flowise = { ENABLED: boolean };
 
 export type S3 = {
   ACCESS_KEY: string;
@@ -311,6 +312,7 @@ export interface Env {
   DIFY: Dify;
   N8N: N8n;
   EVOAI: Evoai;
+  FLOWISE: Flowise;
   CACHE: CacheConf;
   S3?: S3;
   AUTHENTICATION: Auth;
@@ -626,6 +628,9 @@ export class ConfigService {
       EVOAI: {
         ENABLED: process.env?.EVOAI_ENABLED === 'true',
       },
+      FLOWISE: {
+        ENABLED: process.env?.FLOWISE_ENABLED === 'true',
+      },
       CACHE: {
         REDIS: {
           ENABLED: process.env?.CACHE_REDIS_ENABLED === 'true',