Add cluster worker implementation and configuration files

.env.cluster_example

@@ -0,0 +1,21 @@
+# Example configuration for Cluster Node
+# Rename this file to .env before starting
+
+# Master Server Address (where the API is hosting)
+# Example: https://wireguard.example.com
+MASTER_SERVER_ADDRESS=https://wireguard.example.com
+
+# Timezone
+TZ=America/Sao_Paulo
+
+# Cluster Worker Token (Get this from the Master Server)
+TOKEN=<uuid>
+
+# Debug Mode (optional, default False)
+DEBUG_MODE=False
+
+# Compose Version (Do not change)
+COMPOSE_VERSION=03r
+
+# Timezone (duplicate for compatibility if needed, but TZ is standard)
+TIMEZONE=America/Sao_Paulo