Align prod schema and deploy tooling

apps/supabase/functions/.secrets.example

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+# Edge Function Secrets
+# Copy to .secrets and fill in values for local development
+# These are synced to Supabase via GitHub Actions from GitHub Secrets
+
+# RevenueCat - Subscription management
+REVENUECAT_WEBHOOK_SECRET=whsec_xxxxx
+REVENUECAT_API_KEY=sk_xxxxx
+REVENUECAT_ENTITLEMENT_ID=Sauci Pro
+
+# OpenRouter - AI message classification
+OPENROUTER_API_KEY=sk-or-xxxxx
+
+# Admin encryption keys - E2EE decryption (for admin tools)
+ADMIN_PRIVATE_KEY_JWK={"kty":"EC","crv":"P-256",...}
+ADMIN_KEYS_JSON=[{"kty":"EC","crv":"P-256",...}]
+
+# Discord - Notifications
+DISCORD_WEBHOOK_URL=https://discord.com/api/webhooks/xxxxx
+
+# Auto-provided by Supabase (don't set these):
+# SUPABASE_URL
+# SUPABASE_ANON_KEY
+# SUPABASE_SERVICE_ROLE_KEY