bugfix: no error on missing configuration, just use default

profile.sh

@@ -183,7 +183,8 @@ load_conf()
 {
     local section_name="CONF_$1"
 
-    [[ "$(declare -p "$section_name" 2>/dev/null)" != "declare -A"* ]] && return 1
+    # Missing section is not an error: modules can rely on built-in defaults.
+    [[ "$(declare -p "$section_name" 2>/dev/null)" != "declare -A"* ]] && return 0
 
     local -n current_vars="$section_name"