feat: architectural improvements for Apps and System Configuration virtual folders in Files

programs/src/desktop/apps/apps_common.hpp

@@ -172,15 +172,12 @@ enum DesktopBuiltinId : int {
     DESKTOP_BUILTIN_SYSTEM_CONFIGURATION = 20,
 };
 
-inline constexpr const char* FILEMANAGER_PATH_SYSTEM_CONFIGURATION =
-    "virtual://system-configuration";
-
 struct DesktopBuiltinEntry {
     DesktopBuiltinId id;
     const char* label;
     int launcher_category;
     bool launcher_footer;
-    bool system_tools_applet;
+    const char* system_configuration_id;
     const char* icon_path;
 };
 
@@ -190,17 +187,26 @@ SvgIcon* desktop_builtin_menu_icon(DesktopState* ds, DesktopBuiltinId id);
 void desktop_launch_builtin(DesktopState* ds, DesktopBuiltinId id);
 void desktop_lock_screen(DesktopState* ds);
 
-struct DesktopSharedAppletEntry {
+enum DesktopAppletKind : int {
+    DESKTOP_APPLET_NONE = 0,
+    DESKTOP_APPLET_BUILTIN,
+    DESKTOP_APPLET_SHARED_LIBRARY,
+};
+
+struct DesktopAppletEntry {
+    DesktopAppletKind kind;
     char id[48];
     char label[64];
     char icon_path[128];
+    DesktopBuiltinId builtin_id;
     char library_path[128];
 };
 
 int desktop_list_system_configuration_applets(DesktopState* ds,
-                                              DesktopSharedAppletEntry* out,
+                                              DesktopAppletEntry* out,
                                               int max_entries);
-bool desktop_launch_shared_applet(DesktopState* ds, const char* lib_path);
+bool desktop_launch_system_configuration_applet(DesktopState* ds,
+                                                const DesktopAppletEntry* applet);
 
 // ============================================================================
 // Forward declarations for desktop launch entry points
@@ -209,6 +215,7 @@ bool desktop_launch_shared_applet(DesktopState* ds, const char* lib_path);
 void open_terminal(DesktopState* ds);
 void open_filemanager(DesktopState* ds);
 void open_filemanager_path(DesktopState* ds, const char* path);
+void open_system_configuration(DesktopState* ds);
 void ensure_filemanager_icons_loaded(DesktopState* ds);
 void open_calculator(DesktopState* ds);
 void open_texteditor(DesktopState* ds);