- Validate view names with _SAFE_IDENTIFIER regex and check path traversal in _initialize_duckdb()
- find_by_table() and get_table_map() now also search the tables[] array field
- Add POST /api/admin/metrics/import endpoint for YAML file upload
- Replace generic except in _connect_to_instance() with specific HTTPStatusError/TimeoutException handlers
- Generate .claude/settings.json in _generate_claude_md() bootstrap
- Update test_find_by_table and test_get_table_map to cover tables[] array lookups
- Add test_import_metrics_yaml in TestMetricsAPI
Adds YAML-based bulk import/export to MetricRepository, supporting
list-wrapped and plain-dict YAML formats, table→table_name field
mapping, and sql_by_* → sql_variants collection (and reverse on export).
All 24 tests pass.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Implements MetricRepository following the table_registry pattern — raw SQL,
dict returns, ON CONFLICT upsert, and json.dumps for sql_variants/validation.
Includes 18 tests covering create, read, list, update, delete, find_by_table,
find_by_synonym, and get_table_map.
