ci(e2e): identify controller runs by revision

.github/workflows/pr-e2e-gate.yaml

@@ -9,7 +9,11 @@ run-name: >-
   github.event.pull_request.number, github.event.pull_request.head.sha,
   github.event.pull_request.base.sha,
   github.event.action != 'closed') ||
-  format('E2E Gate {0} {1}', github.event_name, github.run_id) }}
+  github.event_name == 'workflow_run' &&
+  format('E2E Gate coordinate from {0}',
+  github.event.workflow_run.display_title) ||
+  format('E2E Gate approve PR #{0} head {1} base {2}',
+  inputs.pr_number, inputs.expected_head_sha, inputs.expected_base_sha) }}
 
 on:
   workflow_run:

test/e2e/README.md

@@ -589,6 +589,9 @@ and advisor concurrency groups include that eligibility, so an ignored
 metadata-edit run cannot cancel an eligible run for the same PR. The trusted
 controller reads all changed files after eligible PR CI completes and builds
 the deterministic risk plan.
+The controller's Actions run name carries that CI display title so operators
+can distinguish simultaneous PR, head, and base identities even when the event
+omits pull-request metadata.
 Runtime families and changes to workflow-wired live tests or their owning
 helpers select canonical jobs from the trusted `e2e.yaml` inventory
 independently of advisor output. A workflow-wired live test or owning helper
@@ -796,6 +799,8 @@ commit SHA, base SHA, selected jobs and targets, and
 maintainer then chooses **Run workflow** on `main`, selects `approve-e2e`, and
 supplies the PR number, recorded head SHA, recorded base SHA, and a specific
 review reason.
+The manual controller run name includes the supplied PR, head, and base
+identity for operator coordination.
 GitHub supplies the triggering actor; the controller requires that account to
 have current `maintain` or `admin` permission.
 

test/pr-e2e-gate-workflow.test.ts

@@ -20,6 +20,16 @@ const HEAD_SHA = "a".repeat(40);
 const BASE_SHA = "b".repeat(40);
 const WORKFLOW_SHA = "d".repeat(40);
 const TRUSTED_SETUP_NODE_ACTION = "actions/setup-node@820762786026740c76f36085b0efc47a31fe5020";
+const PR_GATE_RUN_NAME = [
+  "${{ github.event_name == 'pull_request_target' &&",
+  "format('E2E Gate PR #{0} head {1} base {2} gate {3}',",
+  "github.event.pull_request.number, github.event.pull_request.head.sha,",
+  "github.event.pull_request.base.sha, github.event.action != 'closed') ||",
+  "github.event_name == 'workflow_run' &&",
+  "format('E2E Gate coordinate from {0}', github.event.workflow_run.display_title) ||",
+  "format('E2E Gate approve PR #{0} head {1} base {2}',",
+  "inputs.pr_number, inputs.expected_head_sha, inputs.expected_base_sha) }}",
+].join(" ");
 
 type CoordinatorJob = WorkflowJob & {
   concurrency?: { group: string; queue?: "max"; "cancel-in-progress": boolean };
@@ -276,12 +286,7 @@ describe("PR E2E gate workflow", () => {
     const observerPollMinutes = 21_480 / 60;
 
     expect(workflow.name).toBe("E2E / PR Gate Controller");
-    expect(workflow["run-name"]).toContain("E2E Gate PR #{0} head {1} base {2} gate {3}");
-    expect(workflow["run-name"]).toContain("github.event.pull_request.number");
-    expect(workflow["run-name"]).toContain("github.event.pull_request.head.sha");
-    expect(workflow["run-name"]).toContain("github.event.pull_request.base.sha");
-    expect(workflow["run-name"]).toContain("github.event.action != 'closed'");
-    expect(workflow["run-name"]).not.toContain("github.event.changes.base != null");
+    expect(workflow["run-name"]).toBe(PR_GATE_RUN_NAME);
     expect(workflow.on).toEqual({
       workflow_run: {
         workflows: ["CI / Pull Request"],