refactor: extract CTA scene into standalone cta.py

architecture.py

@@ -124,14 +124,4 @@ class Architecture(Scene):
         self.wait(2.0)
         self.play(FadeOut(hl2), FadeOut(hl3), FadeOut(hl_note))
 
-        self.play(FadeOut(VGroup(*layers)), FadeOut(arrows))
-
-        cta = VGroup(
-            Text("AstrAI", font_size=52, color=BLUE),
-            Text("Single GPU  ·  Open Source  ·  1B params", font_size=22, color=GRAY),
-            Text("github.com/ViperEkura/AstrAI", font_size=18, color=YELLOW),
-        ).arrange(DOWN, buff=0.35)
-        cta.move_to(ORIGIN)
-        self.play(Write(cta))
-        self.wait(2.5)
-        self.play(FadeOut(cta), FadeOut(title))
+        self.play(FadeOut(VGroup(*layers)), FadeOut(arrows), FadeOut(title))

cta.py

@@ -0,0 +1,16 @@
+from manim import *
+
+Text.set_default(font="Times New Roman")
+
+
+class CTA(Scene):
+    def construct(self):
+        cta = VGroup(
+            Text("AstrAI", font_size=52, color=BLUE),
+            Text("Single GPU  ·  Open Source  ·  1B params", font_size=22, color=GRAY),
+            Text("github.com/ViperEkura/AstrAI", font_size=18, color=YELLOW),
+        ).arrange(DOWN, buff=0.35)
+        cta.move_to(ORIGIN)
+        self.play(Write(cta))
+        self.wait(2.5)
+        self.play(FadeOut(cta))

render_all.py

@@ -11,6 +11,7 @@ SCENES = [
     ("architecture.py", "Architecture"),
     ("continuous_batching.py", "ContinuousBatching"),
     ("prefix_cache.py", "PrefixCache"),
+    ("cta.py", "CTA"),
 ]