RaymondVerhoef 43a71e2110 feat: on-demand topic tests with shared question bank ...

Adds a /topic-test route where learners can take a 5-question test on any
eligible topic at any time. Questions come from a shared, admin-curated
question_bank — no LLM calls on the user path. Points feed the existing
leaderboard with a 10pt/topic/week cap (per ISO week) so the bank can't be
farmed, and repeats from a thin bank yield 0 points.

- New PB collections: question_bank, on_demand_attempts (+ migrations and
  setup-pb-collections.mjs entries).
- db.js: un-deprecates getQuizBank/setQuizBank against question_bank so the
  existing admin TestManager panel becomes functional again; adds
  saveOnDemandAttempt, getOnDemandPointsThisWeek, getUserSeenQuestionIds,
  getAllOnDemandAttempts, isoWeekKey.
- testService.js: getEligibleTopicsForOnDemand, startOnDemandTest (unseen-
  first draw), finishOnDemandTest (cap enforcement + leaderboard upsert).
- New TopicTest page, route, and nav entry; weekly test flow untouched.
- Leaderboard folds on-demand 100%s into perfect-score count and merges
  on-demand attempts into the recent activity feed.
- Spec: docs/on-demand-tests-spec.md with ADRs and extension points.
- Tests: 5 new vitest cases covering eligibility, draw fallback, scoring,
  partial cap, and exhausted cap (85/85 total).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-06-02 15:06:43 +02:00

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