feat(ms-ai-architect): Sesjon 24 — C1 Tier 2 lokal launchd-scheduler (deteksjon-only, ToS-trygt) [skip-docs]

Tier 1 (SessionStart-hook) kjører deteksjon kun når en Claude-sesjon starter.
Tier 2 installerer en lokal launchd LaunchAgent som fyrer SAMME Claude-frie
entrypoint daglig (kl. 03:00), uavhengig av sesjoner = ekte bakgrunn mellom
sesjoner. ToS-trygt: entrypointet kan strukturelt ikke invokere claude.

Søk-først-verifisert (2026-06): launchd > cron (Apple-anbefalt; cron krever
Full Disk Access); StartCalendarInterval fanger opp etter dvale; launchd har
minimalt PATH + ekspanderer ikke ~; process.execPath = Cellar-sti som dør ved
`brew upgrade node` → plistens PATH inkluderer /usr/local/bin.

Levert (TDD, test FØR kode):
- lib/launchd-plist.mjs (REN, SKRIVER ALDRI): renderPlist (XML-escape,
  StartCalendarInterval, PATH-fix), defaultLabel, resolvePaths.
- scheduler.mjs (TYNN CLI): install|uninstall|status|run-now|print|run.
  Strukturelt Claude-fri (kun process.execPath på run-detection.mjs +
  launchctl; kilde-grep-testet). run gater på os_scheduler_cadence →
  delegerer til run-detection.mjs. uid-0-nekt; idempotent bootout.
- detection-schedule.mjs (additiv, Tier-1 urørt): os_scheduler_cadence
  ('daily' default | 'interval') + daysSinceLastPoll ren helper.
- commands/kb-update.md: Tier-1/Tier-2-doc + caveats (uninstall=pause;
  re-install etter node-upgrade).

Operatør-valg: daglig default, kadens egen innstilling (settes i onboarding/C2).

Verifisert: launchd-plist 13/13 · detection-schedule 21/21 · kb-update 173 ·
kb-eval 100 · validate 239/0 · test-hooks 6/6 · plutil -lint OK · live
install→status→idempotent→uninstall på maskinen (gui/501, rent).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/kb-update/test-detection-schedule.test.mjs

@@ -23,6 +23,7 @@ import {
   loadScheduleConfig,
   shouldRunDetection,
   summarizeSkillLifecycle,
+  daysSinceLastPoll,
 } from '../../scripts/kb-update/lib/detection-schedule.mjs';
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
@@ -73,6 +74,36 @@ test('parseScheduleConfig — malformed input never throws, falls back to OFF',
     'a non-boolean enabled is treated as OFF');
 });
 
+// --- Tier 2 (launchd) cadence: os_scheduler_cadence (Sesjon 24) ---
+
+test('DEFAULT_SCHEDULE_CONFIG — os_scheduler_cadence defaults to daily', () => {
+  assert.equal(DEFAULT_SCHEDULE_CONFIG.os_scheduler_cadence, 'daily');
+});
+
+test('parseScheduleConfig — reads os_scheduler_cadence: interval', () => {
+  const cfg = parseScheduleConfig('scheduled_detection:\n  os_scheduler_cadence: interval\n');
+  assert.equal(cfg.os_scheduler_cadence, 'interval');
+});
+
+test('parseScheduleConfig — unknown/garbage cadence falls back to daily', () => {
+  assert.equal(parseScheduleConfig('scheduled_detection:\n  os_scheduler_cadence: weekly\n').os_scheduler_cadence, 'daily');
+  assert.equal(parseScheduleConfig('scheduled_detection:\n  enabled: true\n').os_scheduler_cadence, 'daily',
+    'unspecified cadence => daily default');
+});
+
+test('daysSinceLastPoll — Infinity when report missing or last_poll absent/invalid', () => {
+  const now = Date.UTC(2026, 5, 21);
+  assert.equal(daysSinceLastPoll(null, now), Infinity);
+  assert.equal(daysSinceLastPoll({}, now), Infinity);
+  assert.equal(daysSinceLastPoll({ last_poll: 'not-a-date' }, now), Infinity);
+});
+
+test('daysSinceLastPoll — computes whole days since last_poll', () => {
+  const now = Date.UTC(2026, 5, 21, 0, 0, 0);
+  const tenDaysAgo = new Date(Date.UTC(2026, 5, 11, 0, 0, 0)).toISOString();
+  assert.equal(daysSinceLastPoll({ last_poll: tenDaysAgo }, now), 10);
+});
+
 test('loadScheduleConfig — missing config file => OFF default', () => {
   const root = mkdtempSync(join(tmpdir(), 'sched-'));
   try {