Fix last 2 tests:
- action_masking: test used 81-action FactoredAction decoder for
45-action mask. Fixed to use mask's own 5×9 exposure encoding.
- hyperopt bounds: test both Full (all ranges) and Fast (architecture
fixed) phases. Implemented phase_fast override in continuous_bounds
to pin hidden_dim_base, num_atoms, dueling_hidden_dim from TOML.
Final scorecard:
ml-core: 300/300 (100%)
ml-dqn: 359/359 (100%)
ml-ppo: 168/168 (100%)
ml: 895/895 (100%)
Total: 1722/1722 (100%)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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