[remote-controlled-man]

The successful execute_reasoner test can finish while its accepted worker job is still running. A later test replaces the process-wide concurrency limiter, allowing that old job's completion to release a slot in the replacement limiter and make the rejection assertion depend on test order.

Register the existing worker-pool reset as test cleanup after creating the router fixture. Accepted work finishes before temporary payload files are removed and before later tests replace shared state. Existing concurrency-rejection assertions are preserved.

Split from #1137 at the maintainer's request; this PR contains only the two-line MCP test cleanup.

Validation on main c338f01:

• The three-test initialization/execute/rejection trigger passed.
• go test -mod=readonly ./internal/handlers -count=1 passed (62.002s) in the existing non-root Linux Go 1.25.14 environment.
• Changed-file gofmt and git diff --check passed.

The unrelated root formatting overlap is being split separately. The repository-wide formatter and unrelated Python/TypeScript/UI suites were not rerun for this test-only split.

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has insufficient remaining quota.

An organization owner can choose the repository organization as the billing source for reviews requested by members with a paid Copilot license. Learn about Copilot code review billing.

[github-actions]

📊 Coverage gate

Thresholds from .coverage-gate.toml: per-surface ≥ 84%, aggregate ≥ 85%, max per-surface regression ≤ 1.0 pp, max aggregate regression ≤ 0.50 pp.

Surface	Current	Baseline	Δ
control-plane	88.20%	87.40%	↑ +0.80 pp	🟡
sdk-go	93.70%	92.00%	↑ +1.70 pp	🟢
sdk-python	94.72%	93.73%	↑ +0.99 pp	🟢
sdk-typescript	92.50%	90.42%	↑ +2.08 pp	🟢
web-ui	84.89%	84.79%	↑ +0.10 pp	🟡
aggregate	86.11%	85.75%	↑ +0.36 pp	🟡

✅ Gate passed

No surface regressed past the allowed threshold and the aggregate stayed above the floor.

[github-actions]

📐 Patch coverage gate

Threshold: 80% on lines this PR touches vs origin/main (from .coverage-gate.toml:thresholds.min_patch).

Surface	Touched lines	Patch coverage	Status
control-plane	0	—	➖ no changes
sdk-go	0	—	➖ no changes
sdk-python	0	—	➖ no changes
sdk-typescript	0	—	➖ no changes
web-ui	0	—	➖ no changes

✅ Patch gate passed

Every surface whose lines were touched by this PR has patch coverage at or above the threshold.

[santoshkumarradha]

Thanks for splitting this out. The cleanup is scoped to the shared worker state, and the focused handler suite passed locally.