Remove hyperswap_1a_256.onnx from _ensure_ckpts: file not publicly hosted

load_swapper() already falls back to inswapper_128 when hyperswap is absent.
Downloading a non-existent URL was causing HTTP 404 and blocking face enhance.

app.py

@@ -247,7 +247,7 @@ def _ensure_weight(url: str, dest: Path) -> Path:
 def _ensure_ckpts():
     """Download all face-enhancement checkpoints to CKPT_DIR."""
     weights = {
-        "hyperswap_1a_256.onnx": "https://huggingface.co/ezioruan/inswapper_128.onnx/resolve/main/hyperswap_1a_256.onnx",
+        # hyperswap_1a_256.onnx is not publicly hosted — load_swapper falls back to inswapper_128
         "inswapper_128.onnx":    "https://huggingface.co/ezioruan/inswapper_128.onnx/resolve/main/inswapper_128.onnx",
         "RealESRGAN_x4plus.pth": "https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.1/RealESRGAN_x4plus.pth",
         "GFPGANv1.4.pth":        "https://github.com/TencentARC/GFPGAN/releases/download/v1.3.0/GFPGANv1.4.pth",