Close shipped LEARN ergonomics plan item

[azalio]

Summary

• remove stale active parent item 2604.035 from docs/improvement-plan.md
• record the parent closure in docs/improvement-done.md with shipped child-slice evidence
• add loop log and learned review check for closing completed umbrella parents

Validation

• python /Users/azalio/.config/opencode/skills/improvement-plan-loop/scripts/idea_index.py .
• pytest tests/test_map_step_runner.py::test_write_learning_handoff_creates_artifacts_and_manifest tests/test_map_step_runner.py::test_write_learning_handoff_records_repeated_rule_violations tests/test_map_step_runner.py::test_map_step_runner_cli_write_learning_handoff_records_repeated_violation_smoke -v
• python /Users/azalio/.config/opencode/skills/repo-learning-capture/scripts/capture_learning.py --repo . --handoff /var/folders/3j/zmvdy5_56bjcg1kmrx05dltcf7yldq/T/opencode/learning-handoff-2604.035.md
• git diff --check
• pytest -m "not slow"

Full pytest was attempted and progressed through deterministic tests plus the first live Claude SDK e2e tests, then exceeded the 15-minute tool timeout at TestMapEfficientE2E::test_efficient_produces_code_changes.

[Copilot]

Pull request overview

Closes the stale umbrella improvement-plan item [2604.035] by removing it from the active plan ledger and recording its closure (with shipped child-slice evidence) in the done + loop log docs, preventing future loops from re-selecting already-shipped LEARN ergonomics work.

Changes:

• Removed the active plan entry [2604.035] from docs/improvement-plan.md.
• Added a closure record for [2604.035] to docs/improvement-done.md, citing the already-shipped child slices as evidence.
• Logged the closure decision in docs/improvement-loop-log.md and added a reusable review check in docs/learned/review-checks.md.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
docs/learned/review-checks.md	Adds a new review check to close umbrella parents based on shipped child-slice evidence.
docs/improvement-plan.md	Removes the stale active umbrella item [2604.035] from the plan ledger.
docs/improvement-loop-log.md	Records the closure decision and validation notes for [2604.035].
docs/improvement-done.md	Adds a closure record for [2604.035] with repo evidence pointing to shipped child slices.

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