[jonahgabriel]

Summary

• Adds test_integration_feedback_loop.py: end-to-end integration test proving the full feedback chain works in-memory — ModelCanaryReport → HandlerCanaryScoreReducer.accumulate() → materialize() → build_available_models_from_scores() → HandlerRoutingPolicy.handle() selects qwen3-coder-30b (0.94 recall) over deepseek-r1-14b (0.70 recall)
• Re-exports EnumTaskType, ModelRoutingPolicyRequest, ModelAvailableModel, and build_available_models_from_scores from node_routing_policy_engine.__init__ to avoid cross-node .models.* reach-in violations (OMN-9263)
• Cherry-picked OMN-10846 handler_score_lookup.py commits (PRs feat(OMN-10846): bridge capability_scores to routing policy engine via score lookup #604 still open) as this task depends on the score lookup bridge

Ticket

OMN-10848 — Task 5 of 2026-05-11-canary-routing-feedback-loop.md

dod_evidence

• test_canary_scores_feed_routing_decisions passes: 1 passed in 0.12s
• Full suite: 3576 passed (5 pre-existing Postgres/Kafka infra failures unchanged)
• Cross-node reach-in test (test_no_new_cross_node_model_reach_ins) passes — no new violations
• All pre-commit hooks pass (with OMNIBASE_INFRA_PATH set)

Base branch note

This branch stacks on jonah/omn-10847-populate-routing_outcomesquality_score-from-canary-grading (PR #605) and cherry-picks the handler_score_lookup.py addition from OMN-10846 (PR #604). Once both #604 and #605 merge, this PR should be rebased onto main before merging.

Test plan

• Verify test_canary_scores_feed_routing_decisions passes in CI
• Verify test_no_new_cross_node_model_reach_ins passes (no new reach-ins)
• Confirm 5 pre-existing Postgres/Kafka integration failures are unchanged

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