The Learning Tasks grid is capped at 20 rows and, on the parent page, mixes
both children, so it cannot answer "what is overdue". The parent home page
reported 6 overdue tasks for Harry while the stored grid held 1.
Fetch the per-child task list (read-only) from
POST /Services/LearningTasks.svc/GetAllLearningTasksByUserId, parse it into
task rows, and refuse to store it when the overdue count disagrees with the
home page summary (FR-12).
- fetcher: store learning-tasks-all.json + meta (userId, status, task count)
- parse: new learning-tasks-all page, JSON parser, home-page reconciliation
- store: drop superseded grid-derived task rows before the upsert
- docs: docs/phase-4a-overdue-tasks.md; close the Phase 3 known gap
Verified with live runs: Harry 70 tasks / 6 overdue, Finn 42 tasks / 2 overdue,
both equal to the home page; a tampered home page stops the parse.
Note: the fetcher and store.go files also carry the per-child session work
that was already uncommitted in this shared workspace (AUD-108).
Co-Authored-By: Paperclip <noreply@paperclip.ing>