Added matrix_server_name to the defaults

roles/custom/matrix-element-call/defaults/main.yml

@@ -4,6 +4,9 @@
 # Enable or disable matrix-element-call deployment
 matrix_element_call_enabled: false
 
+# Default Matrix server name (can be overridden in host_vars if needed)
+matrix_server_name: "{{ matrix_base_domain }}"
+
 # Base path configuration
 matrix_element_call_base_path: "/home/{{ matrix_user_username }}/dockerdata/volumes/elementcall"
 matrix_element_call_config_path: "{{ matrix_element_call_base_path }}/config"
@@ -31,4 +34,4 @@ matrix_element_call_livekit_service_url: "wss://sfu.{{ matrix_base_domain }}:443
 matrix_element_call_domain: "call.{{ matrix_base_domain }}"
 matrix_element_call_well_known_client_path: "/var/www/.well-known/matrix/client"
 matrix_element_call_well_known_element_path: "/var/www/.well-known/element/element.json"
-matrix_element_call_base_url: "https://{{ matrix_element_call_domain }}"
+matrix_element_call_base_url: "https://{{ matrix_element_call_domain }}"