v0.5.0

v0.5.0 supersedes v0.4.0. Hard-path labs re-skinned trivia to cafe (one domain everywhere), lessons unlink source files to plain code, Codespaces verified end to end. CI stays zero network, zero keys, zero cost.

Highlights

• One domain everywhere: labs/trivia_host is now labs/cafe_host with propose_order, pull_item, settle_item, close_shift over a 12-item menu; all 12 lab.md protocols, 14 companions, and docs follow. Cassettes re-recorded.
• Lessons: toy.py / lab.md references build to plain code, not links (preview servers hand source out as plain text); lesson-to-lesson bridges still navigate, covered by a build regression test.
• Codespaces proven by a 13-step live checklist: pinned env, offline suite green in-container, marimo notebooks open by default, lessons render in embedded preview, Copilot loads the companion instructions.
• S12 judge calibration corpus fixed, twelve judge calls priced on the routing ledger; S05 promise and lab orientation swept.

Take it

Open the folder in Cursor, read docs/COMPANION.md, start sessions/s01-agent-loop/lesson.html with @sessions/s01-agent-loop/companion.md in chat.

Full notes: CHANGELOG.