fix(checkups): keep a missed rolling reminder due until it is measured

A rolling reminder ("every N days") is anchored on its last reading, but
the reminder tick rolled any cycle of a week or less on after a delivered
reminder, re-anchoring it on the send. A missed every-two-days blood
pressure reading therefore moved two days ahead each evening, read "in 2
days" on the card, and never showed as today or overdue.

A rolling reminder now stays due after its reminder, whatever its
interval, until a reading lands or it is done, skipped or snoozed. While
it stays open the repeat follows its interval, capped at a week, still in
its notify hour and under the per-day claim. Calendar rules that recur
within a week (a twice-daily course) keep rolling on; appointments are
unchanged.

holdsOpenAfterReminder stays the one definition for the tick and the
edit route. The daily digest asks the narrower question underneath it,
hasLongCycle, so a short rhythm still waits for its time of day on the
start page and is not pinned under the rail cap.

Refs #1369

src/__tests__/baselines/test-as-never.json

@@ -1,7 +1,7 @@
 {
   "$comment": "as never casts in tests, per test file under src/. Maintained by src/__tests__/test-realism-ratchet.test.ts.",
   "count": 523,
-  "total": 5476,
+  "total": 5475,
   "entries": {
     "__tests__/api/auth/login/mfa-branch.test.ts": 10,
     "__tests__/api/auth/mfa/verify.test.ts": 9,
@@ -440,7 +440,7 @@
     "lib/jobs/__tests__/insight-status-generate.test.ts": 2,
     "lib/jobs/__tests__/measurement-maintenance-schedule.test.ts": 2,
     "lib/jobs/__tests__/measurement-reminder-byhour.test.ts": 2,
-    "lib/jobs/__tests__/measurement-reminder.test.ts": 33,
+    "lib/jobs/__tests__/measurement-reminder.test.ts": 32,
     "lib/jobs/__tests__/medication-intake-import.test.ts": 1,
     "lib/jobs/__tests__/medication-reminder-check.test.ts": 27,
     "lib/jobs/__tests__/mood-reminder.test.ts": 15,