feat: upgrade to NixOS 25.11

- Update nixpkgs and home-manager to 25.11 release
- Update flake dependencies
- Migrate git config to settings attribute
- Replace deprecated packages (mpc-cli -> mpc, vaapiIntel -> intel-vaapi-driver)
- Fix system references to use stdenv.hostPlatform.system
- Add crowdsec module overrides
- Remove android-udev-rules from fuchsia
- Configure SSH with enableDefaultConfig = false
- Update zsh dotDir to use config.xdg.configHome

nixos/fuchsia/services/udev/default.nix

@@ -1,7 +1,6 @@
 {pkgs, ...}: {
   # Enable necessary udev rules.
   services.udev.packages = with pkgs; [
-    android-udev-rules
     openrgb
     unstable.qmk-udev-rules
   ];