Add extras post-copy flow for RAM and Hekate-Pro selection.

Copy sd:/extras from the pack, prompt for RAM and Hekate/AMS choices, persist them in config.ini, apply Pro/8GB payloads, then remove extras/. Use safe config.ini I/O and Joy-Con input clearing between menus.

source/install_update.c

@@ -12,10 +12,6 @@
 #include <string.h>
 #include <utils/sprintf.h>
 
-#ifndef VERSION
-#define VERSION "1.0.0"
-#endif
-
 #undef COLOR_CYAN
 #undef COLOR_WHITE
 #undef COLOR_GREEN
@@ -123,6 +119,10 @@ int update_mode_install(omninx_variant_t variant) {
         if (res != FR_OK && res != FR_NO_FILE) return res;
     }
 
+    s_printf(src_path, "%s/extras", staging);
+    res = folder_copy_with_progress_v2(src_path, "sd:/", "extras/");
+    if (res != FR_OK && res != FR_NO_FILE) return res;
+
     set_color(COLOR_CYAN);
     gfx_printf("  Kopiere Root-Dateien...\n");
     set_color(COLOR_WHITE);