frontend: fix onboarding bounce, mobile sidebar btn, notif deep-links, analysis header

- Fix clinic onboarding loop: refresh session after setActive before navigating,
  surface setActive errors, and guard AppAuthGuard's onboarding redirect race (#1)
- Add a mobile-only floating top-right SidebarTrigger so the sidebar is reachable
  when the offcanvas sidebar is closed on phones (#5)
- Make notifications clickable: navigate to the source (conversation/patient) and
  mark read; MessagesView/PatientsView honor ?conversation= / ?file= deep links (#6)
- Analysis page: add an Overview header with a time-range segmented control and a
  Customize popover that shows/hides sections; range slices month-based charts (#10)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/lib/i18n/locales/en/translation.json

@@ -121,9 +121,12 @@
     "lab": "Lab",
     "notes": "Notes",
     "messages": "Messages",
+    "inbox": "Inbox",
+    "meetings": "Meetings",
     "tasks": "Tasks",
     "activity": "Activity",
     "settings": "Settings",
+    "openSidebar": "Open menu",
     "notifications": "Notifications",
     "notificationsEmpty": "You're all caught up.",
     "quickNav": "Quick nav",
@@ -763,8 +766,25 @@
     }
   },
   "analysis": {
-    "title": "Analysis",
+    "title": "Overview",
     "subtitle": "Clinic performance at a glance, computed from your clinic's data.",
+    "customize": "Customize",
+    "customizeTitle": "Show sections",
+    "range": {
+      "all": "All Time",
+      "12m": "12m",
+      "3m": "3m",
+      "30d": "30d",
+      "today": "Today"
+    },
+    "section": {
+      "visits": "Patient visits",
+      "patients": "Patient volume",
+      "trends": "Trends",
+      "earnings": "Earnings",
+      "appointments": "Appointments",
+      "prescriptions": "Prescriptions"
+    },
     "area": {
       "title": "Patient visits",
       "subtitle": "Visit volume over the last six months.",