feat: obsolete medication archiving, start date, and UI improvements (#215)

* feat: obsolete medication archiving, start date, and UI improvements

- Add soft-archive (obsolete) for medications with dedicated section and toggle
- Add medication start date field with date picker and validation
- Add obsolete/reactivate API endpoints with proper auth
- Filter obsolete meds from schedule, coverage, planner, and notifications
- Improve UserFilterModal with intake schedules, stock badges, and click-to-open
- Improve dashboard taken-by badges with per-intake bell icons
- Add Escape key support to ConfirmModal and MobileEditModal
- Fix Lightbox close button positioning near image
- Add read-only mode support for MobileEditModal
- DB migrations: 0008 (is_obsolete, obsolete_at), 0009 (medication_start_date)
- All user-facing text uses i18n keys (en + de)

* test: fix tests for obsolete medications and UI changes

- Backend: add is_obsolete, obsolete_at, medication_start_date columns to test schemas
- Backend: add test medication inserts in planner tests for active-med filtering
- Frontend: update useMedications URL to include includeObsolete param
- Frontend: fix MobileEditModal selectors and validation assertions
- Frontend: add onClearUser prop to UserFilterModal test renders
- Frontend: fix MedicationsPage and DashboardPage test assertions

backend/drizzle/0008_add_obsolete_medications.sql

@@ -0,0 +1,2 @@
+ALTER TABLE `medications` ADD `is_obsolete` integer DEFAULT false NOT NULL;
+ALTER TABLE `medications` ADD `obsolete_at` integer;

backend/drizzle/0009_add_medication_start_date.sql

@@ -0,0 +1 @@
+ALTER TABLE `medications` ADD `medication_start_date` text DEFAULT '' NOT NULL;

backend/drizzle/meta/_journal.json

@@ -57,6 +57,20 @@
       "when": 1770659669121,
       "tag": "0007_add_share_stock_status",
       "breakpoints": true
+    },
+    {
+      "idx": 8,
+      "version": "6",
+      "when": 1771160400000,
+      "tag": "0008_add_obsolete_medications",
+      "breakpoints": true
+    },
+    {
+      "idx": 9,
+      "version": "6",
+      "when": 1771164000000,
+      "tag": "0009_add_medication_start_date",
+      "breakpoints": true
     }
   ]
 }