Match API texture generation settings to Gradio app for better quality

- Use same high-quality settings as Gradio app: 8 views, 768 resolution
- Reduce GPU duration to 180s to match successful Gradio approach
- Improve fallback settings to medium quality (4 views, 384 resolution)
- Remove adaptive settings that were limiting quality
- API should now produce same quality as Gradio upload feature

gradio_app.py

@@ -645,29 +645,17 @@ def generation_all(
     )
 
 
-@spaces.GPU(duration=300)
+@spaces.GPU(duration=180)
 def generate_texture_lazy_adaptive(mesh_path, image_path, output_mesh_path, num_available_images=1):
     """Generate texture for a mesh with adaptive settings based on available images."""
     try:
         # Lazy initialization of texture pipeline inside GPU function
         from hy3dpaint.textureGenPipeline import Hunyuan3DPaintPipeline, Hunyuan3DPaintConfig
         
-        # Adaptive settings based on number of available images
-        if num_available_images >= 4:
-            # Multiple views available - can use higher quality settings
-            max_views = 4
-            resolution = 384
-            logger.info(f"Using high quality settings: {max_views} views, {resolution} resolution")
-        elif num_available_images >= 2:
-            # Some views available - medium quality
-            max_views = 2
-            resolution = 256
-            logger.info(f"Using medium quality settings: {max_views} views, {resolution} resolution")
-        else:
-            # Single image - use fast settings
-            max_views = 1
-            resolution = 128
-            logger.info(f"Using fast settings: {max_views} views, {resolution} resolution")
+        # Use the same high-quality settings as the Gradio app
+        max_views = 8
+        resolution = 768
+        logger.info(f"Using high quality settings: {max_views} views, {resolution} resolution (same as Gradio app)")
         
         conf = Hunyuan3DPaintConfig(max_num_view=max_views, resolution=resolution)
         conf.realesrgan_ckpt_path = "hy3dpaint/ckpt/RealESRGAN_x4plus.pth"
@@ -688,10 +676,10 @@ def generate_texture_lazy_adaptive(mesh_path, image_path, output_mesh_path, num_
             return textured_mesh_path
         except Exception as texture_error:
             logger.error(f"Texture generation pipeline failed: {texture_error}")
-            # Try with faster settings as fallback
+            # Try with medium quality settings as fallback
             try:
-                fallback_views = min(max_views, 1)
-                fallback_resolution = min(resolution, 128)
+                fallback_views = 4
+                fallback_resolution = 384
                 logger.info(f"Trying fallback settings: {fallback_views} views, {fallback_resolution} resolution")
                 
                 conf = Hunyuan3DPaintConfig(max_num_view=fallback_views, resolution=fallback_resolution)