Rx-expiry ongoing alert (7-day lead), configurable morning check, Felleskatalogen links

The daily digest splits in two: low stock stays an auto-cancel
notification re-posted each morning while below the per-item limit;
prescription renewal becomes a separate ONGOING notification starting
7 days before rx expiry — survives 'Clear all', swipe-dismissable on
Android 14+, returns each morning until the rx date is updated, and
cancels itself once renewed (post-or-cancel in SupplyCheckReceiver).
Check time is now configurable (Innstillinger → Varsler, M3 TimePicker,
default 10:00); same PendingIntent so re-arming replaces. 'Slå opp i
Felleskatalogen' buttons on the item editor and the med editor's
summary card open the browser — decision #8 clarified: the ban covers
Felleskatalogen as a data source, not human-facing links.

Emulator-verified: both notifications post with correct flags
(ONGOING_EVENT vs AUTO_CANCEL), auto-clear after renewal/restock,
alarm follows the configured time (10:00 → 07:30), FK button opens
Chrome.

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

CLAUDE.md

@@ -41,6 +41,8 @@ The name says the brief: nag me to take the dose *now*.
    is a SOAP/WCF M30 XML dump. `tools/fest_flatten.py` (in-repo, amended 2026-06) flattens
    it into a slim JSON bundled as an APK asset; release builds auto-refresh it when >30
    days old. Autocomplete is offline; a downloaded file via Settings can override the bundle.
+   The ban covers Felleskatalogen as a *data source* — browser links to felleskatalogen.no
+   for human reading are fine (added 2026-06).
 9. Refill is **derived** from inventory + consumption. Prescription renewal
    (`rxExpiryEpochDay`, `refillsRemaining`) is tracked **separately** from stock.