🤖 fix: emit metadata when tasks report

Emit workspace metadata updates when agent tasks transition to taskStatus="reported" (agent_report and fallback paths), so clients can refresh UI state even when the workspace can't be deleted immediately.

Signed-off-by: Thomas Kosiewski <tk@coder.com>

---
_Generated with `codex cli` • Model: `gpt-5.2` • Thinking: `xhigh`_
<!-- mux-attribution: model=gpt-5.2 thinking=xhigh -->

Change-Id: I3579450266b79be91c0d1364a3606ff902517e1d

Author: ThomasK33

src/node/services/taskService.test.ts

@@ -733,6 +733,11 @@ describe("TaskService", () => {
     expect(ws?.taskStatus).toBe("reported");
     expect(ws?.reportedAt).toBeTruthy();
 
+    expect(emit).toHaveBeenCalledWith(
+      "metadata",
+      expect.objectContaining({ workspaceId: childId })
+    );
+
     expect(remove).toHaveBeenCalled();
     expect(resumeStream).toHaveBeenCalled();
     expect(emit).toHaveBeenCalled();
@@ -1027,6 +1032,16 @@ describe("TaskService", () => {
 
     await internal.handleStreamEnd({ type: "stream-end", workspaceId: childId });
 
+    const emitCalls = (emit as unknown as { mock: { calls: Array<[string, unknown]> } }).mock.calls;
+    const metadataEmitsForChild = emitCalls.filter((call) => {
+      const [eventName, payload] = call;
+      if (eventName !== "metadata") return false;
+      if (!payload || typeof payload !== "object") return false;
+      const maybePayload = payload as { workspaceId?: unknown };
+      return maybePayload.workspaceId === childId;
+    });
+    expect(metadataEmitsForChild).toHaveLength(2);
+
     const parentHistory = await historyService.getHistory(parentId);
     expect(parentHistory.success).toBe(true);
     if (parentHistory.success) {

src/node/services/taskService.ts

@@ -788,6 +788,15 @@ export class TaskService {
       return config;
     });
 
+    // Notify clients immediately even if we can't delete the workspace yet.
+    const updatedMetadata = (await this.config.getAllWorkspaceMetadata()).find(
+      (m) => m.id === childWorkspaceId
+    );
+    this.workspaceService.emit("metadata", {
+      workspaceId: childWorkspaceId,
+      metadata: updatedMetadata ?? null,
+    });
+
     await this.deliverReportToParent(parentWorkspaceId, entry, {
       reportMarkdown,
       title: `Subagent (${agentType}) report (fallback)`,
@@ -882,6 +891,15 @@ export class TaskService {
       return config;
     });
 
+    // Notify clients immediately even if we can't delete the workspace yet.
+    const updatedMetadata = (await this.config.getAllWorkspaceMetadata()).find(
+      (m) => m.id === childWorkspaceId
+    );
+    this.workspaceService.emit("metadata", {
+      workspaceId: childWorkspaceId,
+      metadata: updatedMetadata ?? null,
+    });
+
     const cfg = this.config.loadConfigOrDefault();
     const childEntry = this.findWorkspaceEntry(cfg, childWorkspaceId);
     const parentWorkspaceId = childEntry?.workspace.parentWorkspaceId;