audit v1.1: nav-strip + dynamic sitemap

feat(audit): free public store-support audit tool + programmatic-SEO pages (/audit)

deploy: model-native language mirror + Shopify shop policies in the brain + cart-link fix + PDF ephemeral-disk persistence + /c hosted no-code page (migration 0025)

partners /r redirect-to-site + public_site_url config

Release 2026-06-15/16: B2 billing-orphan fix + demo conversion (B1/B3/B4/B5) + conversation history (72h) + per-tenant teach-the-bot + onboarding videos