test(robot): add end-to-end integration tests for email categorization actor graph
Adds 104 Robot Framework integration tests exercising the full
6-agent email categorization actor graph across five configuration
strategies: local, remote, mixed, component-decomposed (merge_configs),
and namespaced (local: refs via ReferenceResolver + LocalPackageStore).
- 7 new email graph YAML fixtures under tests/fixtures/email_graph/
- 7 namespaced component YAMLs with local namespace identifiers
- 9 robot test suite files (email_categorization_graph, per-agent,
negative tests, merge_configs validation, components, namespaced)
- EmailGraphLib.py keyword library (executor, graph, merge, components)
- CleverActorsLib.py refactored into per-module libs:
robot/lib/config_lib.py, app_lib.py, registry_lib.py
- email_testdata.resource with 12 realistic email scenarios
- All 104 integration tests pass, all 23 existing tests preserved
Closes #30
CoreRasurae
38fe40553d
