PR7b — feat(marketplace): preview attempt (Phase 2) - #8511

Draft

LWS49 wants to merge 11 commits into

lws49/feat-marketplace-pr7a-attempt-base-recordfrom

lws49/feat-marketplace-pr7b-preview-attempt

Commits on Jul 24, 2026

feat(marketplace): preview attempt lifecycle (Increment A)
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feat(marketplace): delegate course-coupled interface on Attempt for preview serving
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feat(marketplace): courseless auto-grading service for preview attempts
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fix(assessment): make auto-grading EXP tail extension-aware and preview-safe
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refactor(assessment): extract shared _attempt jbuilder partial for preview reuse
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feat(marketplace): abilities for preview attempt serving and grading
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feat(marketplace): preview attempt serving controller, update service, jbuilders
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feat(marketplace): preview attempt live-feedback and scribing endpoints
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fix(marketplace): authorize preview live-feedback status before external call; scope preview loading to previews
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refactor(assessment): de-stutter auto-grading EXP param (submission.submission -> gradable.submission)
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feat(marketplace): preview attempt per-answer save and submit
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