feat: add local SQLite memory store

src/sqlite-memory-store.test.ts

@@ -0,0 +1,103 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+
+import { _initTestDatabase, rememberMemory } from './db.js';
+import {
+  buildRoomMemoryBriefing,
+  buildRoomMemoryKey,
+  formatRoomMemoryBriefing,
+} from './sqlite-memory-store.js';
+
+beforeEach(() => {
+  _initTestDatabase();
+});
+
+describe('sqlite-memory-store helpers', () => {
+  it('builds a stable room memory key from the group folder', () => {
+    expect(buildRoomMemoryKey('ejclaw')).toBe('room:ejclaw');
+  });
+
+  it('formats recalled memories into a compact session briefing', () => {
+    const briefing = formatRoomMemoryBriefing('room:ejclaw', [
+      {
+        id: 1,
+        scopeKind: 'room',
+        scopeKey: 'room:ejclaw',
+        content: '사용자는 세션 리셋 후에도 방 맥락이 이어지길 원함.',
+        keywords: ['room:ejclaw'],
+        memoryKind: 'decision',
+        sourceKind: 'explicit',
+        sourceRef: 'msg:1',
+        createdAt: new Date().toISOString(),
+        lastUsedAt: null,
+        archivedAt: null,
+      },
+      {
+        id: 2,
+        scopeKind: 'room',
+        scopeKey: 'room:ejclaw',
+        content: '자동 recall/compact persist를 호스트가 책임지는 방향으로 합의함.',
+        keywords: ['room:ejclaw'],
+        memoryKind: null,
+        sourceKind: 'compact',
+        sourceRef: 'compact:1',
+        createdAt: new Date().toISOString(),
+        lastUsedAt: null,
+        archivedAt: null,
+      },
+    ]);
+
+    expect(briefing).toContain('## Shared Room Memory');
+    expect(briefing).toContain('room:ejclaw');
+    expect(briefing).toContain(
+      '[decision] 사용자는 세션 리셋 후에도 방 맥락이 이어지길 원함.',
+    );
+    expect(briefing).toContain(
+      '- 자동 recall/compact persist를 호스트가 책임지는 방향으로 합의함.',
+    );
+  });
+
+  it('builds a room briefing from stored SQLite memories', async () => {
+    rememberMemory({
+      scopeKind: 'room',
+      scopeKey: 'room:ejclaw',
+      content: '방 메모리는 새 세션 시작 시에만 주입한다.',
+      keywords: ['room:ejclaw', 'session-start'],
+      sourceKind: 'compact',
+      sourceRef: 'compact:test',
+    });
+
+    const briefing = await buildRoomMemoryBriefing({
+      groupFolder: 'ejclaw',
+      groupName: 'EJClaw',
+    });
+
+    expect(briefing).toContain('## Shared Room Memory');
+    expect(briefing).toContain('방 메모리는 새 세션 시작 시에만 주입한다.');
+  });
+
+  it('trims overly long briefings to the configured max length', () => {
+    const briefing = formatRoomMemoryBriefing(
+      'room:ejclaw',
+      [
+        {
+          id: 1,
+          scopeKind: 'room',
+          scopeKey: 'room:ejclaw',
+          content: 'a'.repeat(300),
+          keywords: [],
+          memoryKind: null,
+          sourceKind: 'compact',
+          sourceRef: 'compact:1',
+          createdAt: new Date().toISOString(),
+          lastUsedAt: null,
+          archivedAt: null,
+        },
+      ],
+      120,
+    );
+
+    expect(briefing).toBeDefined();
+    expect(briefing!.length).toBeLessThanOrEqual(120);
+    expect(briefing!.endsWith('…')).toBe(true);
+  });
+});