Add legacy-cleanup.nix to remove deprecated Sovran_Systems artifacts

Agent-Logs-Url: https://github.com/naturallaw777/staging_alpha/sessions/0c97ec90-556f-4bc9-86fe-c54022414704

Co-authored-by: naturallaw777 <99053422+naturallaw777@users.noreply.github.com>

modules/core/legacy-cleanup.nix

@@ -0,0 +1,33 @@
+{ config, lib, pkgs, ... }:
+
+{
+  # ── Legacy Cleanup ─────────────────────────────────────────────
+  # Removes deprecated apps and folders from the old Sovran_Systems
+  # repo that are no longer needed under staging_alpha.
+  # This runs on every activation but is idempotent (no-ops if
+  # the files are already gone).
+
+  system.activationScripts.cleanupLegacySovran = lib.stringAfter [ "users" ] ''
+    echo "── Cleaning up legacy Sovran_Systems artifacts ──"
+
+    # Remove deprecated .desktop files
+    for f in \
+      /home/free/.local/share/applications/Sovran_SystemsOS_External_Backup.desktop \
+      /home/free/.local/share/applications/Sovran_SystemsOS_Updater.desktop \
+      /home/free/.local/share/applications/Sovran_SystemsOS_Resetter.desktop
+    do
+      if [ -f "$f" ]; then
+        rm -f "$f"
+        echo "  Removed: $f"
+      fi
+    done
+
+    # Remove legacy Sovran_Systems folder (skip if it's a symlink)
+    if [ -d /home/free/.Sovran_Systems ] && [ ! -L /home/free/.Sovran_Systems ]; then
+      rm -rf /home/free/.Sovran_Systems
+      echo "  Removed: /home/free/.Sovran_Systems/"
+    fi
+
+    echo "── Legacy cleanup complete ──"
+  '';
+}

modules/modules.nix

@@ -12,6 +12,7 @@
     ./core/sovran_systemsos-desktop.nix
     ./core/sshd-localhost.nix
     ./core/sovran-hub.nix
+    ./core/legacy-cleanup.nix
 
     # ── Always on (no flag) ───────────────────────────────────
     ./php.nix