Enhance seed handling and logging in ProductionDesignModel class

- Improved seed parameter handling to use a default value if not provided.
- Added logging for the base seed and validated parameters (num_steps, guidance_scale, strength) for better traceability.

prod_model.py

@@ -103,13 +103,20 @@ class ProductionDesignModel(DesignModel):
             num_steps = int(kwargs.get('num_steps', 50))
             guidance_scale = float(kwargs.get('guidance_scale', 7.5))
             strength = float(kwargs.get('strength', 0.75))
-            base_seed = kwargs.get('seed', int(time.time()))
+            
+            # Handle seed properly
+            seed_param = kwargs.get('seed')
+            base_seed = int(time.time()) if seed_param is None else seed_param
+            logging.info(f"Using base seed: {base_seed}")
             
             # Parameter validation
             num_steps = max(20, min(100, num_steps))
             guidance_scale = max(1, min(20, guidance_scale))
             strength = max(0.1, min(1.0, strength))
             
+            # Log validated parameters
+            logging.info(f"Validated parameters: steps={num_steps}, guidance={guidance_scale}, strength={strength}")
+            
             # Prepare the prompt
             full_prompt = self._prepare_prompt(prompt)