- Removed unused empty nodes-v2.db file
- Updated NodeDocumentationService to use nodes.db as default
- Updated test file to use correct database
- Added secret scanning exclusion for database files
This prevents confusion about which database is actually used and removes
the file that GitHub's security advisor was flagging.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
