Problem:
- warren/admin123 login succeeded
- Tree API returned undefined nodes (no database file)
- Frontend error: 'd.nodes is undefined'
Solution:
- Created empty SQLite databases for warren and momentry
- Used FileTree::init_user_db() to initialize
- Each database has empty file_nodes table
Result:
- warren: 0 nodes (empty tree)
- momentry: 0 nodes (empty tree)
- demo: 50 nodes (existing data)
Test result:
✅ warren/admin123 → Tree API returns {nodes: []}
✅ momentry/admin123 → Tree API returns {nodes: []}
✅ demo/admin123 → Tree API returns {nodes: 50}
Files:
- data/users/warren.sqlite (created)
- data/users/momentry.sqlite (created)
