Fix minimal CI lane (gegl=disabled): move _proceed_* out of the GEGL guardmain

The _proceed_prev/next/first/last helpers are trivial wrappers over the
public ggaze_window navigation API and do not depend on GEGL, but were
defined only inside the #if GGAZE_HAVE_GEGL block. The always-compiled
_action_prev/next/first/last handlers reference them via _maybe_save_then,
so the gegl=disabled (minimal) lane failed with '_proceed_prev undeclared'
(regression introduced by the enhance save-dialog commit, before M8 marks).
Move the four helpers out of the GEGL guard so they are always compiled.

Verified: meson setup build-min -Dgegl=disabled -Djxl=disabled -Davif=disabled -Dheif=disabled && ninja -C build-min && meson test -C build-min (23/23 OK); default gegl=enabled lane still 24/24 OK.

1 files changed, 25 insertions, 20 deletions

diff --git a/src/window.c b/src/window.c
index 26beb57..2288bca 100644
--- a/src/window.c
+++ b/src/window.c
@@ -77,6 +77,31 @@ static void     _enhance_panel_reparent(GgazeWindow *p_win, gboolean b_overlay);
 static gboolean _enhance_do_save(GgazeWindow *p_win);
 #endif
 
+/* Navigation continuations used by _maybe_save_then after the (GEGL) save
+ * /discard dialog resolves. They are trivial wrappers over the public
+ * navigation API and do not depend on GEGL, so they are always compiled
+ * (the _action_prev/next/first/last handlers reference them regardless of
+ * the GEGL build configuration). */
+static gboolean
+_proceed_prev(gpointer d) {
+   ggaze_window_prev(GGAZE_WINDOW(d));
+   return (G_SOURCE_REMOVE);
+}
+static gboolean
+_proceed_next(gpointer d) {
+   ggaze_window_next(GGAZE_WINDOW(d));
+   return (G_SOURCE_REMOVE);
+}
+static gboolean
+_proceed_first(gpointer d) {
+   ggaze_window_first(GGAZE_WINDOW(d));
+   return (G_SOURCE_REMOVE);
+}
+static gboolean
+_proceed_last(gpointer d) {
+   ggaze_window_last(GGAZE_WINDOW(d));
+   return (G_SOURCE_REMOVE);
+}
 #if GGAZE_HAVE_GEGL
 /* Export the current image with the enabled-preset chain to
  * <stem>-enhanced.<ext>. Returns TRUE on success; prints the saved name. */
@@ -194,26 +219,6 @@ _maybe_save_then(GgazeWindow *p_win, GSourceFunc fn, gpointer data) {
                            p_ctx);
 }
 
-static gboolean
-_proceed_prev(gpointer d) {
-   ggaze_window_prev(GGAZE_WINDOW(d));
-   return (G_SOURCE_REMOVE);
-}
-static gboolean
-_proceed_next(gpointer d) {
-   ggaze_window_next(GGAZE_WINDOW(d));
-   return (G_SOURCE_REMOVE);
-}
-static gboolean
-_proceed_first(gpointer d) {
-   ggaze_window_first(GGAZE_WINDOW(d));
-   return (G_SOURCE_REMOVE);
-}
-static gboolean
-_proceed_last(gpointer d) {
-   ggaze_window_last(GGAZE_WINDOW(d));
-   return (G_SOURCE_REMOVE);
-}
 #else /* !GGAZE_HAVE_GEGL */
 static void
 _maybe_save_then(GgazeWindow *p_win, GSourceFunc fn, gpointer data) {