Fetch and parse Harry and Finn with a stored Compass session per child and
store every item against the right children.id.
- cmd/school/session.go + internal/store/session.go: read and write the
per-child harness session state in the SQLite `session` table. `show`
prints metadata only; the state is never printed.
- scripts/compass-fetch-patchright.mjs: reuse the stored session, refresh it
after login, resolve the child's userId from the parent page by name, and
keep the shared calendar out of the per-child run (it would leak the
eldest's timetable into the younger child).
- scripts/scan-compass.sh + make scan: scan one child or both; restore the
session, fetch, persist the session, then parse. A failing child is
recorded in `scans` with ok = 0 and the script exits non-zero (FR-12).
- cmd/school/scan.go: `school scan record` writes a fetch failure to the
scans table. cmd/school/items.go: `school items purge` removes rows that a
shared page stored against the wrong child.
- internal/store/store_test.go: prove items and sessions are separated by
child. docs/phase-4-both-children-notes.md; README + image tag 0.3.0-phase4.
Live evidence: Harry 70 tasks / 1 message / 35 events (6 overdue); Finn
42 tasks / 1 message / 0 events (2 overdue). Finn's subjects are Year 7,
Harry's are Year 11. Both sessions stored.
Co-Authored-By: Paperclip <noreply@paperclip.ing>