Add page-view analytics, product counters, SSL expiry, and business renewal.

Auto-count storefront page views with 6-month event retention and lifetime counters, track product visit/cart/sale stats, persist SSL cert expiry with daily probes, and support owner titles plus annual contract renewal.

Co-authored-by: Cursor <cursoragent@cursor.com>

database/migrations/072_domain_ssl_expires_at.sql

@@ -0,0 +1,8 @@
+-- Store Let's Encrypt / TLS notAfter after a successful SSL issue.
+-- List Valid/Invalid prefers this date; live probes run at most once per day.
+ALTER TABLE domains
+  ADD COLUMN IF NOT EXISTS ssl_expires_at TIMESTAMPTZ;
+
+CREATE INDEX IF NOT EXISTS idx_domains_ssl_expires_at
+  ON domains (ssl_expires_at)
+  WHERE ssl_expires_at IS NOT NULL;