Fix text analysis body parsing and Speechmatics service json.dumps serialization issues

fix: add 3s timeout to IMAP connection to prevent sync hanging

Switch backend LLM from Gemini to Qwen

Implement Rakhwala Shield Hybrid Mode (Demo OTP fallback) for cloud environments blocking outbound SMTP

Switch SMTP port to 465 (SSL) for real Gmail OTP delivery on Hugging Face Spaces

Add demo fallback for OTP verification when outbound SMTP is blocked

Remove .env from repository and add to .gitignore

Deploy NadraGuard backend to Hugging Face Spaces

initial commit