fix: weights_only=False for SelVA checkpoints (PyTorch 2.6 compat)

PyTorch 2.6 changed the default to weights_only=True. SelVA checkpoints
contain non-tensor types (numpy scalars etc.) that fail strict unpickling.
All weights come from trusted sources (jnwnlee/selva HF repo).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

selva_core/ext/autoencoder/autoencoder.py

@@ -19,7 +19,7 @@ class AutoEncoderModule(nn.Module):
                  need_vae_encoder: bool = True):
         super().__init__()
         self.vae: VAE = get_my_vae(mode).eval()
-        vae_state_dict = torch.load(vae_ckpt_path, weights_only=True, map_location='cpu')
+        vae_state_dict = torch.load(vae_ckpt_path, weights_only=False, map_location='cpu')
         self.vae.load_state_dict(vae_state_dict)
         self.vae.remove_weight_norm()
 

selva_core/ext/bigvgan/bigvgan.py

@@ -15,7 +15,7 @@ class BigVGAN(nn.Module):
         super().__init__()
         vocoder_cfg = OmegaConf.load(config_path)
         self.vocoder = BigVGANVocoder(vocoder_cfg).eval()
-        vocoder_ckpt = torch.load(ckpt_path, map_location='cpu', weights_only=True)['generator']
+        vocoder_ckpt = torch.load(ckpt_path, map_location='cpu', weights_only=False)['generator']
         self.vocoder.load_state_dict(vocoder_ckpt)
 
         self.weight_norm_removed = False

selva_core/model/utils/features_utils.py

@@ -57,7 +57,7 @@ class FeaturesUtils(nn.Module):
 
             self.synchformer = Synchformer(video=True, audio=False)
             self.synchformer.load_state_dict(
-                torch.load(synchformer_ckpt, weights_only=True, map_location='cpu'))
+                torch.load(synchformer_ckpt, weights_only=False, map_location='cpu'))
             
             self.text_encoder_t5 = T5EncoderModel.from_pretrained('google/flan-t5-base')
             self.tokenizer_t5 = T5TokenizerFast.from_pretrained('google/flan-t5-base')