feat(speedtest): results table + repo

tests/repos/speedtest.test.js

@@ -0,0 +1,15 @@
+import { describe, it, expect, beforeAll } from 'vitest';
+import { resetDb } from '../helpers/db.js';
+import { migrateUp } from '../../lib/db/migrate.js';
+import * as repo from '../../lib/db/repos/speedtest.js';
+
+beforeAll(async () => { await resetDb(); await migrateUp(); });
+describe('speedtest repo', () => {
+  it('records and lists newest-first', async () => {
+    await repo.record({ down_mbps: 100, up_mbps: 20, ping_ms: 8 });
+    await repo.record({ down_mbps: 110, up_mbps: 22, ping_ms: 7 });
+    const hist = await repo.history(30);
+    expect(hist.length).toBe(2);
+    expect(Number(hist[0].down_mbps)).toBe(110);   // newest first
+  });
+});