Add missing deps: sentencepiece, spandrel, imageio; fix SKEL moderngl-window==2.4.6 conflict

app.py

@@ -60,9 +60,11 @@ def _install_runtime_packages():
         [sys.executable, "-m", "pip", "install", "--quiet", "--no-build-isolation"]
         + _NO_ISOLATION_PACKAGES, check=True,
     )
-    # Ensure numpy>=2 — chumpy transitive chain can pin it back to 1.26.4
+    # Ensure numpy>=2 and moderngl-window>=3 — chumpy pins numpy to 1.26.4 and
+    # skel pins moderngl-window==2.4.6 (incompatible with numpy>=2); re-upgrade both.
     subprocess.run(
-        [sys.executable, "-m", "pip", "install", "--quiet", "--upgrade", "numpy>=2"], check=True,
+        [sys.executable, "-m", "pip", "install", "--quiet", "--upgrade",
+         "numpy>=2", "moderngl-window>=3.0.0"], check=True,
     )
     subprocess.run(
         [sys.executable, "-m", "pip", "install", "--quiet", "--no-deps"]

requirements.txt

@@ -76,3 +76,6 @@ gdown
 pycocotools
 jaxtyping
 typeguard
+sentencepiece
+spandrel
+imageio