chore: release v0.11.0

Bump root/backend/frontend to 0.11.0 and record the 0.11.0 changelog:
relay-routed Patient Portal + wallet linking, phone-ready portal QR,
appointments/invoices synced to the wallet, clinic-location reverse geocoding,
and the Arabic RTL sidebar fix.

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

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "frontend",
-  "version": "0.10.0",
+  "version": "0.11.0",
   "private": true,
   "scripts": {
     "dev": "next dev",