fix: preserve paired input evidence context (#204)

src/message-runtime-task-context.test.ts

@@ -0,0 +1,85 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+
+import { _initTestDatabase, storeChatMetadata, storeMessage } from './db.js';
+import { getTaskContextMessages } from './message-runtime-task-context.js';
+import type { NewMessage, PairedTask } from './types.js';
+
+function makeMessage(
+  content: string,
+  timestamp: string,
+  overrides: Partial<NewMessage> = {},
+): NewMessage {
+  return {
+    id: `msg-${content}`,
+    chat_jid: 'group@test',
+    sender: 'user@test',
+    sender_name: 'User',
+    content,
+    timestamp,
+    is_from_me: false,
+    is_bot_message: false,
+    ...overrides,
+  };
+}
+
+function makeTask(overrides: Partial<PairedTask> = {}): PairedTask {
+  return {
+    id: 'task-context',
+    chat_jid: 'group@test',
+    group_folder: 'group',
+    owner_service_id: 'codex-main',
+    reviewer_service_id: 'claude',
+    owner_agent_type: 'codex',
+    reviewer_agent_type: 'claude-code',
+    arbiter_agent_type: 'codex',
+    title: null,
+    source_ref: null,
+    plan_notes: null,
+    review_requested_at: null,
+    round_trip_count: 1,
+    owner_failure_count: 0,
+    owner_step_done_streak: 0,
+    finalize_step_done_count: 0,
+    task_done_then_user_reopen_count: 0,
+    empty_step_done_streak: 0,
+    status: 'review_ready',
+    arbiter_verdict: null,
+    arbiter_requested_at: null,
+    completion_reason: null,
+    created_at: '2026-04-20T00:00:00.000Z',
+    updated_at: '2026-04-20T00:30:00.000Z',
+    ...overrides,
+  };
+}
+
+describe('message runtime task context', () => {
+  beforeEach(() => {
+    _initTestDatabase();
+  });
+
+  it('keeps the original task request even after it falls outside the recent 20 messages', () => {
+    storeChatMetadata(
+      'group@test',
+      'Test Group',
+      '2026-04-20T00:00:00.000Z',
+      'discord',
+      true,
+    );
+    storeMessage(makeMessage('원래 사용자 요청', '2026-04-20T00:00:01.000Z'));
+    for (let index = 0; index < 25; index += 1) {
+      storeMessage(
+        makeMessage(
+          `후속 노이즈 ${index}`,
+          `2026-04-20T00:${String(index + 2).padStart(2, '0')}:00.000Z`,
+          { id: `noise-${index}`, is_bot_message: index % 2 === 0 },
+        ),
+      );
+    }
+
+    const messages = getTaskContextMessages('group@test', makeTask());
+
+    expect(messages.map((message) => message.content)).toContain(
+      '원래 사용자 요청',
+    );
+  });
+});