feat(doctor map): replace Google Maps iframe with Leaflet (OSM)

The Google Maps iframe was blocked by CSP (frame-src falls back to
default-src 'self'). Switched the doctor-page location map to react-leaflet
with OpenStreetMap tiles — no iframe, and CSP already allows https image
tiles (img-src 'self' https:). Marker icons are bundled from the leaflet
package (no CDN). MapView is dynamically imported (ssr:false) since Leaflet
needs window.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

package.json

@@ -40,6 +40,7 @@
     "jalali-moment": "^3.3.11",
     "js-cookie": "^3.0.5",
     "jspdf": "^3.0.4",
+    "leaflet": "^1.9.4",
     "moment-jalaali": "^0.10.4",
     "next": "^16.2.10",
     "next-themes": "^0.4.6",
@@ -52,6 +53,7 @@
     "react-easy-crop": "^5.5.6",
     "react-google-map-picker": "^1.2.3",
     "react-images-uploading": "^3.1.7",
+    "react-leaflet": "^5.0.0",
     "react-toastify": "^11.0.5",
     "sharp": "^0.34.5",
     "styled-components": "^6.1.19",