When login_url() is called from a different app (e.g. cart), the
anonymous cart_sid is in that app's session cookie. Pass it as a
query parameter so the auth app can store it and use it for adoption.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
market_url('/product/...') was missing the /<page_slug>/<market_slug>/
prefix required by the market app's route structure. New helper
market_product_url() resolves the prefix from request context
(g.post_slug/g.market_slug in market app, g.page_slug + market_place
in cart app).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
