Fix HTML content preservation in citations - remove newline replacement

Co-authored-by: owndev <69784886+owndev@users.noreply.github.com>

Author: Copilot

pipelines/azure/azure_ai_foundry.py

@@ -869,8 +869,6 @@ def _format_citation_section(
                 try:
                     # Clean content for display
                     clean_content = str(content_text).strip()
-                    # Replace problematic characters for HTML display
-                    clean_content = clean_content.replace("\n", " ").replace("\r", " ")
                     if for_streaming:
                         # Additional escaping for streaming
                         clean_content = clean_content.replace("\\", "\\\\").replace(