Phase 5: reporting, exports, pronouns, and roster freshness

Instructor participation report: per-student histograms, outcome mix
by class day, and a sortable table including the fairness ratio
(answered calls over questions present for, with opt-out days out of
the denominator), plus CSV exports of students, calls, and opt-outs.

Assessment scales are now per-course data: ordered levels with labels
and points out of 100 (defaults carry the old R grading values), with
calls referencing levels by id so renames follow through to history.
Renaming, re-pointing, reordering, and adding levels are always
allowed; deleting a level in use by recorded calls is blocked.

Pronouns and course term dates come from Canvas custom variable
substitutions, at launch and roster-wide via rlid-scoped NRPS; the
student page notes that names/pronouns are Canvas-sourced. Rosters
can also be refreshed outside launches: a "Sync roster now" button
and a sync-rosters CLI command for an hourly cron job, skipping ended
courses. Alembic now runs SQLite-compatible batch migrations with a
constraint naming convention.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/test_launch.py

@@ -28,6 +28,26 @@ def test_extract_launch_info_instructor():
     assert info.is_instructor
 
 
+def test_extract_launch_info_pronouns_custom_claim():
+    data = sample_launch_data()
+    data[launch.CLAIM_CUSTOM] = {"pronouns": "ze/zir"}
+    assert launch.extract_launch_info(data).pronouns == "ze/zir"
+
+    data[launch.CLAIM_CUSTOM] = {"pronouns": "$com.instructure.Person.pronouns"}
+    assert launch.extract_launch_info(data).pronouns is None
+
+
+def test_extract_launch_info_course_dates():
+    data = sample_launch_data()
+    data[launch.CLAIM_CUSTOM] = {
+        "course_start": "2026-09-30T07:00:00Z",
+        "course_end": "$Canvas.course.endAt",
+    }
+    info = launch.extract_launch_info(data)
+    assert info.course_start == launch.datetime.date(2026, 9, 30)
+    assert info.course_end is None
+
+
 def test_upsert_launch_creates_and_is_idempotent(db_session):
     info = launch.extract_launch_info(sample_launch_data())
     course, student = launch.upsert_launch(db_session, info)