refactor(config): migrate C3 overrides call sites to self-identifying guard

conf.d/theme.fish

@@ -1,5 +1,9 @@
 # Copyright (C) 2026 Rootiest
 # SPDX-License-Identifier: AGPL-3.0-or-later
+
+# COMPONENT
+#   overrides/prompt
+
 #
 #          ╭──────────────────────────────────────────────────────────╮
 #          │                       Fish Theme                         │
@@ -9,7 +13,7 @@
 # Forcing theme colors and $FZF_DEFAULT_OPTS is opinionated (C3 overrides).
 # The FZF variable is universal, so clean up our Catppuccin value if it
 # lingers from a session where overrides were still enabled.
-if not __fish_config_op_enabled __fish_config_op_overrides
+if not __fish_config_op_enabled (status basename)
     if set -q FZF_DEFAULT_OPTS; and string match -q '*#1E1E2E*' -- "$FZF_DEFAULT_OPTS"
         set --erase FZF_DEFAULT_OPTS
     end