perf(team): skip redundant task interval resumes for stable alive members

readPersistedStatuses каждый раз делал полный sync-scan всех task
JSON под file lock и звал resumeActiveIntervalsForMember для каждого
member с runtimeAlive=true — на больших командах блокировал main
до 8s. Теперь маркируем member как 'resume applied' пока он остаётся
alive, сбрасываем маркер при переходе в not-alive (через
syncMemberTaskActivityForRuntimeTransition и в readPersistedStatuses
loop). Resume остаётся идемпотентным и материализует интервалы из
истории один раз за цикл alive.

src/main/services/team/TeamProvisioningService.ts

@@ -3549,6 +3549,7 @@ export class TeamProvisioningService {
   private readonly transcriptProjectResolver: TeamTranscriptProjectResolver;
   private readonly taskActivityIntervalService = new TeamTaskActivityIntervalService();
   private readonly leadTaskActivitySyncedRunKeys = new Set<string>();
+  private readonly memberTaskActivityResumeAppliedByTeam = new Map<string, Set<string>>();
   private readonly crashRepairedActivityIntervalsByTeam = new Set<string>();
   private readonly pendingCrashRepairSnapshotByTeam = new Map<
     string,
@@ -3782,6 +3783,49 @@ export class TeamProvisioningService {
     this.runtimeProcessRowsForUsageSnapshotByTeam.delete(teamName);
   }
 
+  private normalizeMemberKeyForTaskActivity(memberName: string): string {
+    return memberName.trim().toLowerCase();
+  }
+
+  private getMemberTaskActivityResumeAppliedSet(teamName: string): Set<string> {
+    let applied = this.memberTaskActivityResumeAppliedByTeam.get(teamName);
+    if (!applied) {
+      applied = new Set();
+      this.memberTaskActivityResumeAppliedByTeam.set(teamName, applied);
+    }
+    return applied;
+  }
+
+  private resumeTaskActivityIntervalsForAliveMember(
+    teamName: string,
+    memberName: string,
+    at: string
+  ): void {
+    const memberKey = this.normalizeMemberKeyForTaskActivity(memberName);
+    if (!memberKey) return;
+    const applied = this.getMemberTaskActivityResumeAppliedSet(teamName);
+    if (applied.has(memberKey)) return;
+    const result = this.taskActivityIntervalService.resumeActiveIntervalsForMember(
+      teamName,
+      memberName,
+      at
+    );
+    if (!result.failed) {
+      applied.add(memberKey);
+    }
+  }
+
+  private dropTaskActivityResumeMarkerForMember(teamName: string, memberName: string): void {
+    const memberKey = this.normalizeMemberKeyForTaskActivity(memberName);
+    if (!memberKey) return;
+    const applied = this.memberTaskActivityResumeAppliedByTeam.get(teamName);
+    if (!applied) return;
+    applied.delete(memberKey);
+    if (applied.size === 0) {
+      this.memberTaskActivityResumeAppliedByTeam.delete(teamName);
+    }
+  }
+
   private cloneMemberSpawnStatusesSnapshot(
     snapshot: MemberSpawnStatusesSnapshot
   ): MemberSpawnStatusesSnapshot {
@@ -13587,6 +13631,7 @@ export class TeamProvisioningService {
   ): void {
     if (previous.runtimeAlive === true && next.runtimeAlive !== true) {
       this.pauseMemberTaskActivityForRuntimeLoss(run, memberName, previous, observedAt);
+      this.dropTaskActivityResumeMarkerForMember(run.teamName, memberName);
     } else if (previous.runtimeAlive !== true && next.runtimeAlive === true) {
       const nextUpdatedMs = parseOptionalIsoMs(next.updatedAt);
       const previousUpdatedMs = parseOptionalIsoMs(previous.updatedAt);
@@ -13594,7 +13639,7 @@ export class TeamProvisioningService {
         nextUpdatedMs > 0 && (previousUpdatedMs <= 0 || nextUpdatedMs > previousUpdatedMs)
           ? next.updatedAt
           : nowIso();
-      this.taskActivityIntervalService.resumeActiveIntervalsForMember(
+      this.resumeTaskActivityIntervalsForAliveMember(
         run.teamName,
         memberName,
         deriveTaskActivityResumeAt(previous, observedAt, resumeFallbackAt)
@@ -13940,11 +13985,9 @@ export class TeamProvisioningService {
       const runtimeObservedAt = nowIso();
       for (const [memberName, entry] of Object.entries(nextStatuses)) {
         if (entry.runtimeAlive === true) {
-          this.taskActivityIntervalService.resumeActiveIntervalsForMember(
+          this.resumeTaskActivityIntervalsForAliveMember(teamName, memberName, runtimeObservedAt);
-            teamName,
+        } else {
-            memberName,
+          this.dropTaskActivityResumeMarkerForMember(teamName, memberName);
-            runtimeObservedAt
-          );
         }
       }
       const expectedMembers = snapshot ? this.getPersistedLaunchMemberNames(snapshot) : undefined;

test/main/services/team/TeamProvisioningService.test.ts

@@ -2663,6 +2663,98 @@ describe('TeamProvisioningService', () => {
         pauseSpy.mockRestore();
       }
     });
+
+    it('skips redundant resumeActiveIntervalsForMember calls while a member stays alive', () => {
+      const resumeSpy = vi
+        .spyOn(TeamTaskActivityIntervalService.prototype, 'resumeActiveIntervalsForMember')
+        .mockReturnValue({ changedTasks: 0 });
+      try {
+        const svc = new TeamProvisioningService();
+        const internals = svc as unknown as {
+          resumeTaskActivityIntervalsForAliveMember: (
+            teamName: string,
+            memberName: string,
+            at: string
+          ) => void;
+          dropTaskActivityResumeMarkerForMember: (teamName: string, memberName: string) => void;
+        };
+        const teamName = 'member-task-activity-resume-dedup-team';
+
+        internals.resumeTaskActivityIntervalsForAliveMember(
+          teamName,
+          'alice',
+          '2026-05-29T00:00:00.000Z'
+        );
+        internals.resumeTaskActivityIntervalsForAliveMember(
+          teamName,
+          'alice',
+          '2026-05-29T00:00:05.000Z'
+        );
+        internals.resumeTaskActivityIntervalsForAliveMember(
+          teamName,
+          'ALICE',
+          '2026-05-29T00:00:10.000Z'
+        );
+
+        expect(resumeSpy).toHaveBeenCalledTimes(1);
+        expect(resumeSpy).toHaveBeenNthCalledWith(
+          1,
+          teamName,
+          'alice',
+          '2026-05-29T00:00:00.000Z'
+        );
+
+        internals.dropTaskActivityResumeMarkerForMember(teamName, 'alice');
+        internals.resumeTaskActivityIntervalsForAliveMember(
+          teamName,
+          'alice',
+          '2026-05-29T00:01:00.000Z'
+        );
+
+        expect(resumeSpy).toHaveBeenCalledTimes(2);
+        expect(resumeSpy).toHaveBeenNthCalledWith(
+          2,
+          teamName,
+          'alice',
+          '2026-05-29T00:01:00.000Z'
+        );
+      } finally {
+        resumeSpy.mockRestore();
+      }
+    });
+
+    it('retries resumeActiveIntervalsForMember when the previous call reported failure', () => {
+      const resumeSpy = vi
+        .spyOn(TeamTaskActivityIntervalService.prototype, 'resumeActiveIntervalsForMember')
+        .mockReturnValueOnce({ changedTasks: 0, failed: true })
+        .mockReturnValueOnce({ changedTasks: 1 });
+      try {
+        const svc = new TeamProvisioningService();
+        const internals = svc as unknown as {
+          resumeTaskActivityIntervalsForAliveMember: (
+            teamName: string,
+            memberName: string,
+            at: string
+          ) => void;
+        };
+        const teamName = 'member-task-activity-resume-retry-team';
+
+        internals.resumeTaskActivityIntervalsForAliveMember(
+          teamName,
+          'bob',
+          '2026-05-29T00:00:00.000Z'
+        );
+        internals.resumeTaskActivityIntervalsForAliveMember(
+          teamName,
+          'bob',
+          '2026-05-29T00:00:05.000Z'
+        );
+
+        expect(resumeSpy).toHaveBeenCalledTimes(2);
+      } finally {
+        resumeSpy.mockRestore();
+      }
+    });
   });
 
   describe('member spawn status launch reads', () => {