Test Fixture Client

This is the fixture client used by the foundry build engine integration tests. It exercises all five archetype templates with stub source files.

The body of this overview is rendered through markdown-it-py and lands inside archetypes/overview.html.

What this verifies

1. Markdown rendering for the overview archetype.
2. Iframe mounting for recon-audit, recon-intel, partnership-briefing, and analytical-brief archetypes.
3. Per-archetype visibility metadata threads through to the rendered page (the recon-intel page should carry an internal-only banner).