- Update 3 integration tests in dqn_action_collapse_fix_test.rs that
expected the old 46D search space (cql_alpha tunable, phase-specific
v_range bounds). Now expect 22D with fixed cql_alpha.
- Fix cql_alpha: from_continuous hardcoded 0.5, Default uses 0.1.
Aligned to 0.1 (same pattern as dd_threshold fix earlier).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>