Yamen Ahmad c016a52200 feat(reports): replace mock Reports pages with real backend aggregates ...

Wire the three admin Reports pages (/admin/student-performance,
/admin/stats-corporate, /admin/record) to a new
encoach_lms_api/controllers/reports.py that aggregates from
encoach.student.attempt.

* /api/reports/student-performance: per-student band averages + CEFR,
  with entity / level / search filters.
* /api/reports/stats-corporate: by_module bar, N-month trend line,
  CEFR distribution pie, entity comparison bar, threshold + entity
  filters and meta.attempts_considered for UI.
* /api/reports/record: paginated attempt history with entity / user /
  period filters, EX-### exam codes, duration derived from start/end.
* /api/reports/filters: shared picker returning only entities /
  students that actually have attempts.

Frontend: new reports.service.ts, all three pages rewritten to hit
these endpoints; Recharts graphs now read live data, CSV export added
on Student Performance and Record.

Seeding: seed_reports.py completes any in_progress attempts and
backfills 6 months of historical attempts across 3 entities so the
trend / distribution / KPI panels have meaningful data. Idempotent.

Tests: test_reports_flows.py (25/25 PASS) covers shape, filters,
pagination. Regressions still green: Configuration 24/24, Support
29/29, Training 26/26. Browser-verified on localhost:8080 with admin
login — all 4 tabs in Stats Corporate render, Student Performance
shows real students + KPIs, Record shows 28 attempts with filter +
CSV export working.

Docs: new §20 in PROJECT_SUMMARY.md documenting scope, artifacts,
seeding, test results, and gotchas (encoach.exam.custom uses `title`
not `name`; encoach.entity requires `code`; in_progress attempts are
excluded from aggregates).

Made-with: Cursor

2026-04-19 11:28:26 +04:00

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