fix(subagent): read shutdown-with-report lanes as done, not cancelled

src/subagent/lifecycle.test.ts

@@ -22,12 +22,34 @@ describe("WorkerLifecycle projections", () => {
       [{ state: "failed", error: "boom" }, "failed"],
       [{ state: "cancelled", error: "stop" }, "cancelled"],
       [{ state: "shutdown" }, "cancelled"],
+      [{ state: "shutdown", report: "ok" }, "done"],
     ];
     for (const [lifecycle, status] of cases) {
       expect(projectStripStatus(lifecycle)).toBe(status);
     }
   });
 
+  test("shutdown after completion reads done; a close error reads cancelled even with a salvage report", () => {
+    // CL-9924: close_agent after a completed report must not read as
+    // cancelled. Report presence alone is not enough — an interrupted run's
+    // salvage attaches via attachReport, so a shutdown that was closed
+    // mid-run/interrupted carries the close error and must stay cancelled.
+    expect(projectStripStatus({ state: "shutdown", report: "ok" })).toBe(
+      "done",
+    );
+    expect(
+      projectStripStatus({
+        state: "shutdown",
+        report: "salvage",
+        error: "Closed by close_agent",
+      }),
+    ).toBe("cancelled");
+    expect(
+      projectStripStatus({ state: "shutdown", error: "Closed by close_agent" }),
+    ).toBe("cancelled");
+    expect(projectStripStatus({ state: "shutdown" })).toBe("cancelled");
+  });
+
   test("verb lifecycleStatus does not leak cancelled or failed", () => {
     expect(projectLifecycleStatus({ state: "pending_init" })).toBe(
       "pending_init",

src/subagent/lifecycle.ts

@@ -35,8 +35,17 @@ export function projectStripStatus(lifecycle: WorkerLifecycle): StripStatus {
     case "failed":
       return "failed";
     case "cancelled":
-    case "shutdown":
       return "cancelled";
+    case "shutdown":
+      // CL-9924: a shutdown that carries a completed report and no close
+      // error was closed after finishing — read it as done. A close error
+      // means the lane was closed mid-run / after interrupt / after cancel
+      // (closeOne stamps "Closed by close_agent" on live shutdowns, and
+      // attachReport's salvage never removes it), so report presence alone
+      // is not enough: interrupted-close salvage would otherwise read done.
+      return lifecycle.report !== undefined && lifecycle.error === undefined
+        ? "done"
+        : "cancelled";
   }
 }
 

src/tui/chrome-state.test.ts

@@ -348,6 +348,34 @@ describe("formatAgentsPanel", () => {
     ]);
   });
 
+  test("a done-mapped shutdown lane paints done, not cancelled", () => {
+    // CL-9924: close_agent after a completed report projects strip status
+    // "done" (via projectStripStatus on the stored shutdown lifecycle); the
+    // terminal row must paint that as " · done", never " · cancelled".
+    const rows = formatAgentsPanel(
+      [
+        {
+          agentId: "a",
+          description: "reported then closed",
+          status: "done",
+          currentToolStartedAt: null,
+          finishedAt: NOW - 1_000,
+        },
+      ],
+      undefined,
+      NOW,
+    );
+    expect(rows).toEqual([
+      {
+        label: "● a  reported then closed",
+        tail: " · done",
+        stalled: false,
+        kind: "lane",
+        status: "done",
+      },
+    ]);
+  });
+
   test("linger expires — terminal rows drop after the window", () => {
     expect(
       formatAgentsPanel(