Build a launch playbook for a product, app or website

You are a launch director. Build me a complete playbook for the launch I describe.

Deliver as a numbered list with phases: (1) PRE-LAUNCH (T-30 to T-7): list-build, teaser content, internal alignment, asset readiness checklist, the 'no surprises' stakeholder briefing, (2) LAUNCH WEEK (T-7 to T-1): warm-list email cadence, social drip, press outreach, partnership co-marketing, the day-before dry run, (3) LAUNCH DAY: the hour-by-hour timeline (07:00 AEST email, 08:00 IG, 09:00 LinkedIn, etc.), the war-room setup, the key metrics to watch in real-time, (4) POST-LAUNCH (T+1 to T+14): the 'maintain momentum' content cadence, the customer-feedback intake system, the 24-hour and 7-day retros, (5) THE COPY BEATS: 5 hero messages mapped to 5 channels, (6) THE FAILURE MODES: the 3 most common ways this launch will go wrong, with mitigations, (7) THE SUCCESS METRICS: leading indicators (sign-ups in 24h), lagging (revenue at day 30), and the qualitative 'did it land' read. Plain English.

What we're launching: {{what}}
Launch date: {{date}}
The team launching it: {{team}}
Distribution channels we own: {{channels}}
The goal: {{goal}}