fix sd3 null bias breaking build

Author: stduhpf

latent-preview.h

@@ -13,7 +13,7 @@ const float wan_21_latent_rgb_proj[16][3] = {
     {-0.151145f, 0.017721f, 0.007207f},
     {-0.293239f, -0.207936f, -0.421135f},
     {-0.187721f, 0.050783f, 0.177649f},
-    {-0.013067f, 0.265964f, 0.166578f},
+    {-0.013067f, 0.265964f, 0.166578f       },
     {0.028327f, 0.109329f, 0.108642f},
     {-0.205343f, 0.043991f, 0.148914f},
     {0.014307f, -0.048647f, -0.007219f},
@@ -115,7 +115,7 @@ const float sd3_latent_rgb_proj[16][3] = {
     {-0.0749f, -0.0634f, -0.0456f},
     {-0.1418f, -0.1457f, -0.1259f},
 };
-float sd3_latent_rgb_bias[3] = NULL;
+float sd3_latent_rgb_bias[3] = {0, 0, 0};
 
 const float sdxl_latent_rgb_proj[4][3] =   {
     {0.258303f, 0.277640f, 0.329699f},