Migrate grateWizard from React/Next.js to native Nuxt integration

- Port all React components to Vue 3 (GwTabs, GwMN, GwCRA, GwCRS,
  GwMap, GwRelations, GwPerimeterList)
- Port hooks to Vue composables (useCesiumProfiles, useSavedPerimeters)
- Copy pure TS services and utils (duniter/, ss58, gratewizard utils)
- Add Leaflet + Geoman + MarkerCluster dependencies
- Serve grateWizard as popup via /gratewizard?popup (layout: false)
  and info page on /gratewizard (with Librodrome layout)
- Remove public/gratewizard-app/ static Next.js export
- Refine UI: compact tabs, buttons, inputs, cards, perimeter list
- Use Ğ1 breve everywhere, French locale for all dates and amounts
- Rename roles: vendeur→offre / acheteur→reçoit le produit ou service
- Rename prix→évaluation in all visible text
- Add calculated result column in CRA and CRS relation tables
- DU/Ğ1 selector uses toggle switch (same as role toggle)
- Auto-scroll to monetary data card on polygon selection

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -10,20 +10,24 @@
     "postinstall": "nuxt prepare"
   },
   "dependencies": {
+    "@geoman-io/leaflet-geoman-free": "^2.19.2",
     "@nuxt/content": "^3.11.2",
     "@nuxt/image": "^2.0.0",
     "@pinia/nuxt": "^0.11.3",
     "@unocss/nuxt": "^66.6.0",
     "@vueuse/nuxt": "^14.2.1",
     "better-sqlite3": "^12.6.2",
+    "leaflet": "^1.9.4",
+    "leaflet.markercluster": "^1.5.3",
     "nuxt": "^4.3.1",
-    "yaml": "^2.8.2",
     "vue": "^3.5.28",
-    "vue-router": "^4.6.4"
+    "vue-router": "^4.6.4",
+    "yaml": "^2.8.2"
   },
   "devDependencies": {
     "@iconify-json/lucide": "^1.2.91",
     "@iconify-json/ph": "^1.2.2",
+    "@types/leaflet": "^1.9.21",
     "typescript": "^5.9.3",
     "unocss": "^66.6.0"
   },