- Fix better-sqlite3 import statements to use namespace import
- Update test schemas to match actual database schema
- Align NodeRepository tests with actual API implementation
- Fix FTS5 tests to work with templates instead of nodes
- Update mock data to match ParsedNode interface
- Fix column names to match actual schema (node_type, package_name, etc)
- Add proper ParsedNode creation helper function
- Remove tests for non-existent foreign key constraints