migration of xo10 to xo11 of faqs json

[reshmayarraguntla]

Implemented a HTTP server for JSON file uploads and conversion.

• Accepts file uploads via POST (multipart/form-data).
• Validates that the uploaded file is a valid JSON containing "faqs".
• Extracts FAQ question, answers, conditional answers, and alternate questions.
• Converts the structure into a simplified JSON format with fields:
  • chunkText (answer text)
  • chunkTitle (question)
  • recordUrl ("faq")
  • cfa1 (conditional answers, if any)
  • cfa2 (alternate questions, if any)
• Saves the converted file as <original_filename>-converted.json inside outputs/.
• Responds with a JSON containing a URL to access the converted file.
• Provides a GET endpoint to download the converted files.
• Runs on port 5000 (http://localhost:5000).