fix: add envs

.env.example

@@ -9,7 +9,7 @@ GIN_MODE=debug
 PLUGIN_REMOTE_INSTALLING_HOST=127.0.0.1
 PLUGIN_REMOTE_INSTALLING_PORT=5003
 
-PLUGIN_WEBHOOK_ENABLED=true
+PLUGIN_ENDPOINT_ENABLED=true
 
 ROUTINE_POOL_SIZE=1024
 
@@ -17,6 +17,12 @@ REDIS_HOST=127.0.0.1
 REDIS_PORT=6379
 REDIS_PASS=difyai123456
 
+DB_USERNAME=postgres
+DB_PASSWORD=difyai123456
+DB_HOST=localhost
+DB_PORT=5432
+DB_DATABASE=dify_plugin
+
 AWS_LAMBDA_REGION=us-east-1
 AWS_LAMBDA_ACCESS_KEY=
 AWS_LAMBDA_SECRET_KEY=