fix(lang): pin the detected customer language explicitly (Spanish-heavy context was overriding plain mirror); None->mirror fallback

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)

AI quality: open grounding (always consult the brain) + leveled-up prompt (no product-conflation / no-invent / no-repeat / human-last) + Spanish-detection fix + credentials video in Tienda Shopify tab + honest copy

handoff no fabricated link

lang detection root fixes

deep knowledge + guards

language guard

fix: robust lang + cross-lang search

feat: universal language detection

fix: catalan + anti-hallucination

fix: short-lang+no-emoji+translate

fix: escalation+language

fix: ES/PT language markers