Phase kuma M1 impl: resolves the 2026-05-28 DEFERRED uptime-kuma create-a-monitor item. Approach: Playwright (option b) — python-socketio not in cc-ci Nix env; Playwright handles Socket.IO transparently via the real browser. Selectors confirmed in 2.2.1 compiled bundle (data-cy setup wizard + data-testid monitor form/status badge). Test flow (test_monitor_wizard_and_probe): 1. Setup wizard: admin create via data-cy form → auto-login → /dashboard 2. Create self-probe monitor (https://{live_app}/) → wait ≤90s for "Up" badge 3. Heartbeat table row check: isFirstBeat=important, row has real datetime stamp 4. Negative: dead-port monitor (http://127.0.0.1:19999/dead) → wait ≤60s for "Down" All waits are bounded poll with page.wait_for_function/wait_for_url/wait_for_selector. Admin password: 64-char UUID hex, never printed/logged. Also: DECISIONS.md records Playwright choice; phase state files bootstrapped. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>