DazzleTreeLib needs introspection methods for adapter capabilities

[djdarcy]

Problem

When DazzleTreeLib adapters are wrapped in ErrorHandlingAdapter, there's no way to introspect what capabilities the underlying adapter stack provides. This causes test failures when code tries to check for features like cache tracking.

Current Workaround

Tests are currently skipped with:

@pytest.mark.skip(reason="Waiting for DazzleTreeLib introspection support")

Proposed Solution

DazzleTreeLib needs to add introspection methods to adapters:

• has_capability(capability_name) - Check if adapter stack supports a feature
• get_adapter_by_type(adapter_class) - Retrieve specific adapter from stack
• list_capabilities() - List all available capabilities

Affected Tests

• tests/test_permission_error_handling.py::test_cache_tracking_with_errors
• tests/test_permission_error_handling.py::test_visited_tracking_with_permission_errors

Dependencies

• Requires changes in DazzleTreeLib repository
• Will need to update modified_datetime_fix once DazzleTreeLib is updated

Related to DazzleTreeLib v0.9.2 error handling improvements.