One booking page, two URLs. page.ts renders it; each HTTP file is a separate subdomain, so either can be killed without touching the other.

Edit SLOTS in page.ts to change time slots and Google Calendar links.

Identical page, but the slots point at /go/15|30|45 — a redirect that counts click-throughs before handing off to Google Calendar. Three ways to shut it off, softest to hardest:

1. Manual — GET /close?key=$SLACKBOT_KEY. Also /open, /status, /reset.
2. Automatic — CAP click-throughs per rolling 7 days, then it closes itself.
3. Nuclear — delete slackbot.ts. The subdomain 404s; charliechat.val.run is unaffected.

Closed replaces the three slots with a single email button. /go/* stops redirecting too, so a copy-pasted deep link can't sneak past the gate.

State lives in the val-scoped blob slackbot-gate. SLACKBOT_KEY is an env var on this val.

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