fix: Improve template processing for code blocks and newlines

app.py

@@ -91,22 +91,28 @@ with open("prompts.yaml", 'r') as stream:
             try:
                 # First, ensure we have valid template syntax
                 if '{{' in value or '{%' in value:
+                    # Handle code blocks first
+                    value = re.sub(r'```([^`]+)```', lambda m: m.group(0).replace('\n', '\\n'), value)
+                    
                     # Ensure template variables are properly formatted
                     value = value.replace('{{', '{{ ').replace('}}', ' }}')
                     # Ensure template blocks are properly formatted
                     value = value.replace('{%', '{% ').replace('%}', ' %}')
-                    # Ensure newlines are properly handled
-                    value = value.replace('\n', '\\n')
+                    
                     # Add spaces around template expressions if missing
-                    value = re.sub(r'{{([^{}]+)}}', r'{{ \1 }}', value)
-                    value = re.sub(r'{%([^{}]+)%}', r'{% \1 %}', value)
-                    # Ensure proper spacing in template expressions
                     value = re.sub(r'{{([^{}]+)}}', lambda m: '{{ ' + m.group(1).strip() + ' }}', value)
                     value = re.sub(r'{%([^{}]+)%}', lambda m: '{% ' + m.group(1).strip() + ' %}', value)
-                    # Remove any double spaces
-                    value = re.sub(r'\s+', ' ', value)
-                    # Ensure proper line breaks
-                    value = value.replace('\\n', '\n')
+                    
+                    # Handle newlines in a way that preserves formatting
+                    value = value.replace('\n', '\\n')
+                    
+                    # Remove any double spaces except in code blocks
+                    value = re.sub(r'(?<!```)(\s+)(?!```)', ' ', value)
+                    
+                    # Restore code blocks
+                    value = value.replace('\\n```', '\n```')
+                    value = value.replace('```\\n', '```\n')
+                    
                     logger.debug(f"Processed template string: {value[:100]}...")
                 else:
                     logger.debug("No template syntax found in string")