<!-- HARNESS MIRROR — do not edit here. Canonical source: skills/ or commands/. After editing source, copy into cli/assets/<harness / and repo-root harness mirrors. -- Context: this sub-skill is one lens of the broader skill. If the skill is also installed, read its SKILL.md first for Discovery + Anti-Slop + Craft Test, then apply the specific lens below. Load the skill. This command BUILDS — it ends with working code that passes the recipe's acceptance bar. Recipes available: → · → · (sign-in/sign-up) → . If names a surface with no recipe yet (settings, docs, e-commerce), say so and fall bac…