NetVendor v12.5: SIEM Integration, Drift Analysis, Runtime Logging & Enhanced UX

🚀 Major Features:

• SIEM export with stable schema (CSV/JSONL in output/siem/)
• Historical drift analysis with metadata correlation (timestamp, site, change_ticket_id)
• Runtime logging for troubleshooting and performance analysis (JSONL format)
• Enhanced error handling with user-friendly messages and actionable hints
• Offline mode support for air-gapped networks (--offline flag)

📚 Documentation & UX Improvements:

• Comprehensive README restructuring for quick value discovery
• TL;DR section with key benefits at the top
• 'Who is this for?' section for role-based identification
• Table of Contents for easy navigation
• Quick-start examples with sample data (try it in 60 seconds)
• Reassuring notes about data cleaning (no heavy preprocessing needed)
• Explicit browser instructions for dashboard viewing
• Clarified advanced features require NetVendor.py

🔧 Technical Improvements:

• Automatic directory creation for history and SIEM exports
• Improved error messages with context and hints
• Structured runtime logging (NETVENDOR_LOG=1)
• Enhanced drift analysis with metadata for SIEM correlation
• Better file validation and error handling

📦 All outputs:

• Standard: Device CSV, Port CSV, HTML dashboard, Vendor Summary
• Optional: SIEM exports (CSV/JSONL), History archives, Drift analysis CSV
• Runtime logs for troubleshooting (when enabled)

For full details, see README.md