scratch/seed_pin_customer.go (//go:build ignore, idempotent) — one customer with
PIN 1234 already set, for testing the interim /customer/auth/verify-pin flow.
Phone stored in normalised +91 form so CxPinLogin/CxVerifyPin find it. Run
against live: appcustomerid 300.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WRaFH5hMRqmUQvVPQsyjZD
