[jung-thomas]

Closes #2866.

What & why

App Space prize credit (and the QR barcode) must reflect work done during the event. Previously completion was time-agnostic — anyone with a COMPLETED TaskRecord for the track's tutorials could walk up and collect a prize, even if they finished months before TechEd. This gates App Space completion to the event's time window.

Change

• Server (srv/developer-service.js, getAppSpaceProgress only): a COMPLETED TUTORIAL whose completionDate falls outside the event's inclusive [startDate, endDate] is re-emitted with status COMPLETED_OUT_OF_WINDOW. The returned status is a plain String, so no schema change.
  • Fail-open: gate only when both dates are present; if either is null → no gating (protects un-dated / non-TechEd events).
  • Null completionDate on a gated event → out-of-window.
  • TUTORIAL items only; CHECKPOINT/PRIZE pass through unchanged.
  • getEventProgress and the scanner/claim path are untouched.
• UI (hugo-apps/src/app-space/AppSpace.vue): distinct "redo" state (step--redo class, refresh-arrows glyph, inline hint) for out-of-window items, pointing at the existing reset feature. The client already gates track/prize completion strictly on === 'COMPLETED', so a downgraded item does not advance the track or unlock the prize barcode.

Attendees who completed a tutorial early use the existing reset, then re-complete during the event to earn credit.

Tests

• 10 new unit tests in test/app-space-completion-window.test.js: in-window, before-start, after-end, both inclusive boundaries, null completionDate, both fail-open (null-start / null-end), IN_PROGRESS pass-through, non-TUTORIAL never downgraded.
• Scoped run green: app-space-completion-window + app-space-fk-resolution + developer-service → 37/37. Full suite runs in CI.

Deferred (minor, non-blocking)

• .step--redo has no sapphire-theme–specific override (renders amber/critical in all themes via --sapCriticalColor; only the sapphire tuning that step--earned has is absent).
• No committed automated UI assertion for the redo state — covered by the post-deploy e2e job per the repo's e2e-coverage pattern.

Design + plan: docs/superpowers/specs/2026-10-20-app-space-completion-window-design.md, docs/superpowers/plans/2026-10-20-app-space-completion-window.md.