Add logging configuration for n8n in environment files

- Introduced N8N_LOG_LEVEL and N8N_LOG_OUTPUT variables in .env.example for logging customization.
- Updated docker-compose.yml to support dynamic assignment of logging configuration, defaulting to 'info' and 'console' respectively.

.env.example

@@ -176,6 +176,8 @@ RUN_N8N_IMPORT=
 N8N_WORKER_COUNT=
 N8N_BLOCK_FILE_ACCESS_TO_N8N_FILES=true
 EXECUTIONS_MODE=queue
+N8N_LOG_LEVEL=info
+N8N_LOG_OUTPUT=console
 
 ############
 # [optional]

docker-compose.yml

@@ -55,6 +55,8 @@ x-n8n: &service-n8n
     N8N_EMAIL_MODE: ${N8N_EMAIL_MODE:-smtp}
     N8N_ENCRYPTION_KEY: ${N8N_ENCRYPTION_KEY}
     N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS: true
+    N8N_LOG_LEVEL: ${N8N_LOG_LEVEL:-info}
+    N8N_LOG_OUTPUT: ${N8N_LOG_OUTPUT:-console}
     N8N_METRICS: true
     N8N_PAYLOAD_SIZE_MAX: 256
     N8N_PERSONALIZATION_ENABLED: false