fix: live-VM desktop fixes — Hyprland 0.55 compat + swww→awww rename

Found by booting the live ISO (docs/TESTING.md checklist):
- pin HM configType = "hyprlang" (26.05 stateVersion defaults to the new
  Lua config and renders these settings as broken hl.$mod(...) calls,
  booting Hyprland into emergency mode)
- drop dwindle:pseudotile (removed in Hyprland 0.55; aborts config parse)
- disable splash rendering alongside the logo
- launch awww-daemon and call awww with swww fallback (nixpkgs' swww is
  the renamed awww fork; no `swww` binary exists anymore)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

pkgs/nomarchy-theme-sync/nomarchy-theme-sync.py

@@ -168,16 +168,18 @@ def apply_wallpaper(state: dict, wait: bool = False) -> None:
     if wallpaper is None:
         log(f"no wallpaper for theme '{state.get('slug', '?')}', skipping")
         return
-    if shutil.which("swww") is None:
-        log("swww not found, skipping wallpaper")
+    # nixpkgs renamed swww to awww (CLI-compatible fork); accept either.
+    swww = shutil.which("awww") or shutil.which("swww")
+    if swww is None:
+        log("awww/swww not found, skipping wallpaper")
         return
-    # At session start swww-daemon may still be coming up.
+    # At session start the daemon may still be coming up.
     for _ in range(10 if wait else 1):
-        if subprocess.run(["swww", "query"], capture_output=True).returncode == 0:
+        if subprocess.run([swww, "query"], capture_output=True).returncode == 0:
             break
         time.sleep(0.5)
     result = subprocess.run(
-        ["swww", "img", str(wallpaper),
+        [swww, "img", str(wallpaper),
          "--transition-type", "grow",
          "--transition-pos", "center",
          "--transition-duration", "1",
@@ -185,7 +187,7 @@ def apply_wallpaper(state: dict, wait: bool = False) -> None:
         capture_output=True,
     )
     log(f"wallpaper: {wallpaper.name}" if result.returncode == 0
-        else "wallpaper: swww failed (daemon not running?)")
+        else "wallpaper: awww failed (daemon not running?)")
 
 
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