Preserve caller cancellation in HTTP smoke probes

docs/roadmap/remediation.md

@@ -1,6 +1,6 @@
 # Smoke Test Implementation Review Findings
 
-Status: three open findings. Review completed 2026-10-13.
+Status: one finding completed; two open. Review completed 2026-10-13.
 
 Reviewed implementation commits after `8fbd058` through
 `2f735aedf9b5dcc98164292db46ae1eab3e15cde`, against the
@@ -16,7 +16,7 @@ below are reporting-correctness gaps, not reasons to redesign the feature.
 
 ## Finding 1: Preserve Caller Cancellation Independently Of Body Error Type
 
-Priority: P2. Status: open.
+Priority: P2. Status: completed 2026-10-13.
 
 Locations: [`finishHTTP`](../../internal/usecase/smoke_tester.go), lines 355–366,
 and [`runOpenRouterKey`](../../internal/usecase/smoke_authentication.go),
@@ -47,6 +47,13 @@ that cancels the caller and returns a non-context I/O error. Its existing fake
 returns `context.Canceled`, which masks this defect. Check partial-report and
 context identity rather than exact error text; reuse existing timeout coverage.
 
+Completion: HTTP probe failures now check the caller context at the failed-I/O
+boundary before classification, preserving partial response evidence even for
+opaque transport/body errors. Completed authentication is not revoked when body
+closure subsequently cancels the caller. The new regressions failed before the
+fix; `GOWORK=off go test -race ./internal/usecase .`, focused use-case vet, and
+`git diff --check` passed. Existing configured-timeout coverage remains green.
+
 ## Finding 2: Report The Actual Initial Inference Request Destination
 
 Priority: P2. Status: open.