Accept a late parent terminal event in the child process page

Why: waitRunTerminal can return before run.completed is stored, so that event may land between the appended tool output and the child events.
Evidence: CI run 3274 failed twice on TestRunProcessEventsAreOrderedAndBoundToConversation with run.completed ahead of the child progress and result. Local go test of that test passed after this assertion.
Impact: the test still rejects leaked child tool output and still requires child progress then result, in that order.
Refs: Agent-System-Backend pulls/201
Co-authored-by: Cursor <cursoragent@cursor.com>

internal/server/run_process_events_test.go

@@ -70,8 +70,24 @@ func TestRunProcessEventsAreOrderedAndBoundToConversation(t *testing.T) {
 		t.Fatalf("child page: %d %v", code, childPage)
 	}
 	childRows := childPage["events"].([]any)
-	if len(childRows) != 2 || childRows[0].(map[string]any)["type"] != string(core.EvAgentProgress) || childRows[1].(map[string]any)["type"] != string(core.EvAgentResult) {
-		t.Fatalf("child progress/result not retained or raw child output leaked: %v", childRows)
+	var childTypes []string
+	for _, row := range childRows {
+		ev := row.(map[string]any)
+		typ, _ := ev["type"].(string)
+		if typ == string(core.EvToolOutput) {
+			payload, _ := ev["payload"].(map[string]any)
+			if payload["text"] == "child raw output" {
+				t.Fatalf("raw child output leaked: %v", childRows)
+			}
+		}
+		if typ == string(core.EvAgentProgress) || typ == string(core.EvAgentResult) {
+			childTypes = append(childTypes, typ)
+		}
+	}
+	// 父运行的终态事件可能在 waitRunTerminal 之后才落库，序号会落在这次追加的
+	// 工具输出和子运行事件之间。这里只要求子运行进度与结果按序保留。
+	if len(childTypes) != 2 || childTypes[0] != string(core.EvAgentProgress) || childTypes[1] != string(core.EvAgentResult) {
+		t.Fatalf("child progress/result not retained: types=%v rows=%v", childTypes, childRows)
 	}
 	code, _ = doJSON(t, h, http.MethodGet, "/api/conversations/"+otherConvID+"/runs/"+runID+"/events", nil)
 	if code != http.StatusNotFound {