Classroom follow-on: Author and validate the first production staged KT Case Study #317

Roadmap status — deliberately deferred

Do not begin this issue until both #316 is complete and the approved pre-production hardening sequence #328 → #329 → #330 has landed. The first production case should be authored against the final access, maintenance, and startup contracts rather than temporary compatibility behavior.

Canonical planning contract: docs/preproduction-hardening.md.

Goal

Turn the completed #313 staged-simulation engine into a real Instructor-runnable KT exercise by authoring the first production simulation definition from authoritative instructional source material.

Preconditions

Depends on protected rich staged-content/asset delivery. Do not work around missing asset support by flattening or guessing source material.

Required work

• select the first official Case Study only from authoritative participant/instructor source material supplied for the repository;
• define source-faithful stage boundaries, Student objectives, initial/optional releases, suggested timing, debrief edit policy, Intake targets, and Instructor facilitation/debrief/exemplar references;
• attach reviewed protected pages/images/tables/evidence by stable asset IDs;
• explicitly document which source page(s)/section(s) justify each stage/release;
• review the staged definition against Instructor material before making it production-selectable;
• run a complete Instructor + multi-team Student browser rehearsal from Start Class through final debrief/completion;
• prove future-stage and Instructor-only material remain inaccessible;
• validate late join, reassignment, Ready, freeze/unfreeze, checkpoint-vs-live, mobile, and accessibility using the actual authored case;
• keep completed Intake state separate from the staged Student feed.

Must not do

• do not infer official stage boundaries from a completed Intake;
• do not invent case evidence, teaching points, or model answers;
• do not assume similarly named cases across KT books are identical unless the supplied sources establish that;
• do not expose a full protected case payload as a shortcut.

Done when

At least one official Case Study appears in the Instructor staged selector and can be run end-to-end without manual PDF/page coordination or unreleased-content leakage.

Relationship

Follow-on to #313. Production official-case staging was intentionally deferred throughout PR #315 until authoritative material could be supplied and reviewed.