Recover only active groups after restart

Limit restart interruption snapshots, announcements, and recovery queueing to groups that were actively processing. Waiting groups remain compatible in stored context but no longer receive restart recovery signals.

src/restart-context.test.ts

@@ -1,6 +1,8 @@
 import { describe, expect, it } from 'vitest';
 
 import {
+  buildRestartAnnouncement,
+  getRecoverableInterruptedGroups,
   getInterruptedRecoveryCandidates,
   type RestartContext,
 } from './restart-context.js';
@@ -16,8 +18,8 @@ function makeGroup(folder: string): RegisteredGroup {
   };
 }
 
-describe('getInterruptedRecoveryCandidates', () => {
-  it('returns only registered interrupted groups and deduplicates by chatJid', () => {
+describe('restart recovery context', () => {
+  it('returns only registered processing groups and deduplicates by chatJid', () => {
     const roomBindings: Record<string, RegisteredGroup> = {
       'dc:1': makeGroup('group-one'),
       'dc:2': makeGroup('group-two'),
@@ -38,8 +40,8 @@ describe('getInterruptedRecoveryCandidates', () => {
           pendingTasks: 0,
         },
         {
-          chatJid: 'dc:1',
-          groupName: 'one-duplicate',
+          chatJid: 'dc:2',
+          groupName: 'two-waiting',
           status: 'waiting',
           elapsedMs: null,
           pendingMessages: false,
@@ -47,7 +49,7 @@ describe('getInterruptedRecoveryCandidates', () => {
         },
         {
           chatJid: 'dc:2',
-          groupName: 'two',
+          groupName: 'two-idle',
           status: 'idle',
           elapsedMs: null,
           pendingMessages: false,
@@ -61,6 +63,14 @@ describe('getInterruptedRecoveryCandidates', () => {
           pendingMessages: true,
           pendingTasks: 0,
         },
+        {
+          chatJid: 'dc:1',
+          groupName: 'one-duplicate',
+          status: 'processing',
+          elapsedMs: 2000,
+          pendingMessages: false,
+          pendingTasks: 1,
+        },
       ],
     };
 
@@ -72,17 +82,40 @@ describe('getInterruptedRecoveryCandidates', () => {
         pendingMessages: true,
         pendingTasks: 0,
       },
-      {
-        chatJid: 'dc:2',
-        groupFolder: 'group-two',
-        status: 'idle',
-        pendingMessages: false,
-        pendingTasks: 0,
-      },
     ]);
   });
 
   it('returns empty when there is no explicit restart context', () => {
     expect(getInterruptedRecoveryCandidates(null, {})).toEqual([]);
   });
+
+  it('uses only processing groups for restart announcements', () => {
+    const context: RestartContext = {
+      chatJid: 'dc:main',
+      summary: 'restart',
+      verify: [],
+      writtenAt: '2026-05-21T00:00:00.000Z',
+      interruptedGroups: [
+        {
+          chatJid: 'dc:processing',
+          groupName: 'processing',
+          status: 'processing',
+          elapsedMs: 1000,
+          pendingMessages: false,
+          pendingTasks: 0,
+        },
+        {
+          chatJid: 'dc:waiting',
+          groupName: 'waiting',
+          status: 'waiting',
+          elapsedMs: null,
+          pendingMessages: true,
+          pendingTasks: 1,
+        },
+      ],
+    };
+
+    expect(getRecoverableInterruptedGroups(context)).toHaveLength(1);
+    expect(buildRestartAnnouncement(context)).toContain('중단 작업 감지: 1개');
+  });
 });