Theme Plymouth: chat photographe anime au boot

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/plymouth-theme/photobooth.script

@@ -0,0 +1,18 @@
+// Animation du chat photographe
+frame = 0;
+total_frames = 20;
+
+for (i = 0; i < total_frames; i++) {
+    frames[i] = Image("frame-" + String(i).PadLeft(4, "0") + ".png");
+}
+
+bg = Image("background.png");
+
+fun refresh_callback() {
+    bg.Draw(0, 0);
+    frames[frame].Draw(0, 0);
+    frame = (frame + 1) % total_frames;
+}
+
+Plymouth.SetRefreshFunction(refresh_callback);
+Plymouth.SetRefreshRate(5);