Removed authentication from API server, JWT master key as environment variable

src/utils/structs.rs

@@ -108,7 +108,7 @@ pub struct AppConfig {
     pub hc_method: String,
     pub upstreams_conf: String,
     pub log_level: String,
-    pub master_key: String,
+    pub master_key: Option<String>,
     pub config_address: String,
     pub proxy_address_http: String,
     pub config_api_enabled: bool,