feat: add Redis SSL/TLS certificate authentication support (#23624)

docker/.env.example

@@ -264,6 +264,15 @@ REDIS_PORT=6379
 REDIS_USERNAME=
 REDIS_PASSWORD=difyai123456
 REDIS_USE_SSL=false
+# SSL configuration for Redis (when REDIS_USE_SSL=true)
+REDIS_SSL_CERT_REQS=CERT_NONE
+# Options: CERT_NONE, CERT_OPTIONAL, CERT_REQUIRED
+REDIS_SSL_CA_CERTS=
+# Path to CA certificate file for SSL verification
+REDIS_SSL_CERTFILE=
+# Path to client certificate file for SSL authentication
+REDIS_SSL_KEYFILE=
+# Path to client private key file for SSL authentication
 REDIS_DB=0
 
 # Whether to use Redis Sentinel mode.