tanstack-start-template

Design and restyle TanStack Start routes and React components in this repo using the March 2026 GPT-5.4 frontend guidance while preserving local conventions. Use when building or refining marketing pages, dashboards, admin surfaces, authenticated app views, page-level layouts, visual systems, or interaction polish in `src/routes/`, `src/features/**/components/`, `src/components/ui/`, or `src/styles/app.css`.

Add or update buyer-facing security controls in this repo's site admin control workspace. Use when authoring or revising NIST-based controls, framework mappings, implementation summaries, checklist items, seeded evidence, or site admin reseed/reset behavior tied to the active control register generator and Convex security workspace.