feat(config-settings): value-row set/get backend helpers

functions/__config_settings_get_raw.fish

@@ -0,0 +1,27 @@
+# Copyright (C) 2026 Rootiest
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+# SYNOPSIS
+#   __config_settings_get_raw <varname>
+#
+# DESCRIPTION
+#   Prints the current value of a universal variable for display in the
+#   config-settings value pages. List variables are printed space-joined.
+#   Prints "DEFAULT" when the variable is unset in every scope.
+#
+# ARGUMENTS
+#   varname  Variable name without the $ prefix
+#
+# RETURNS
+#   0  Always; prints the value or "DEFAULT" to stdout
+#
+# EXAMPLE
+#   set v (__config_settings_get_raw sponge_delay)   # "2" or "DEFAULT"
+function __config_settings_get_raw
+    set -l varname $argv[1]
+    if set -q $varname
+        string join ' ' -- $$varname
+    else
+        echo DEFAULT
+    end
+end