feat: persist settings and enrich conversation context

tests/web/media-route.test.ts

@@ -0,0 +1,66 @@
+import express from 'express';
+import type { AddressInfo } from 'node:net';
+import { afterEach, describe, expect, it, vi } from 'vitest';
+import type { WebContext } from '../../src/web/context.js';
+import { createMediaRouter } from '../../src/web/routes/media.js';
+
+const servers: Array<ReturnType<express.Express['listen']>> = [];
+
+async function request(app: express.Express, path: string): Promise<Response> {
+  const server = app.listen(0);
+  servers.push(server);
+  await new Promise<void>((resolve) => server.once('listening', resolve));
+  const { port } = server.address() as AddressInfo;
+  return fetch(`http://127.0.0.1:${port}${path}`);
+}
+
+afterEach(async () => {
+  await Promise.all(servers.splice(0).map((server) => new Promise<void>((resolve) => server.close(() => resolve()))));
+});
+
+describe('media route username presentation', () => {
+  it('upgrades historical t2 fields through the chat username map', async () => {
+    const context = {
+      logger: { error: vi.fn() },
+      services: {
+        media: { getMediaItems: vi.fn().mockResolvedValue([{
+          id: 'one', chatUsername: 't2_known', chatRoomId: 'room-one', sender: 't2_known',
+          timestamp: 1, originalUrl: 'mxc://one', fileName: 'one.jpg', relativePath: 'one.jpg', createdAt: 2,
+        }]) },
+        chat: {
+          getCachedConversations: vi.fn().mockResolvedValue([]),
+          resolveSenderDisplay: vi.fn((identity: string) => identity === 't2_known' ? 'alice' : identity),
+        },
+      },
+    } as unknown as WebContext;
+    const app = express().use('/api', createMediaRouter(context));
+
+    const response = await request(app, '/api/media');
+
+    expect(response.status).toBe(200);
+    expect(await response.json()).toEqual([expect.objectContaining({ chatUsername: 'alice', sender: 'alice' })]);
+  });
+
+  it('uses a safe fallback when no username mapping exists', async () => {
+    const context = {
+      logger: { error: vi.fn() },
+      services: {
+        media: { getMediaItems: vi.fn().mockResolvedValue([{
+          id: 'one', chatUsername: 't2_missing', chatRoomId: 'room-one', sender: '@t2_missing:reddit.com',
+          timestamp: 1, originalUrl: 'mxc://one', fileName: 'one.jpg', relativePath: 'one.jpg', createdAt: 2,
+        }]) },
+        chat: {
+          getCachedConversations: vi.fn().mockResolvedValue([]),
+          resolveSenderDisplay: vi.fn((identity: string) => identity),
+        },
+      },
+    } as unknown as WebContext;
+    const app = express().use('/api', createMediaRouter(context));
+
+    const response = await request(app, '/api/media');
+    const body = await response.json();
+
+    expect(JSON.stringify(body)).not.toContain('t2_missing');
+    expect(body[0]).toMatchObject({ chatUsername: null, sender: 'Unknown Reddit user' });
+  });
+});