Page states

Status: Placeholder — to be developed. Last reviewed: —

Scope

System-wide patterns for non-happy-path page states: empty (no rows yet, no permission, search returned nothing), loading (initial render, HTMX fetches, long jobs), error (4xx, 5xx, partial failure), and no-permission. Independent of the component the state appears in.

Goal: every list, detail, and dashboard page handles these four states consistently — same icon style, same copy structure, same call-to-action placement.

Sources to mine when writing this

• Existing empty-state implementations across templates/ (grep for empty, aucun, no).
• Loading patterns currently in use (HTMX hx-indicator, spinners in partials).
• Django error templates (templates/404.html, 500.html if present).
• Recent dataquality and imports pages — likely the most-iterated examples.