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>

app/components/gratewizard/GwRelations.vue

@@ -0,0 +1,131 @@
+<template>
+  <div class="card-surface !p-0">
+    <div class="flex items-center justify-center py-3 px-4">
+      <p class="gw-metric text-sm">Mes relations</p>
+    </div>
+    <div class="overflow-x-auto">
+      <table class="w-full text-sm">
+        <thead>
+          <tr class="border-b border-white/8">
+            <th
+              v-for="col in columns"
+              :key="col.key"
+              class="px-3 py-2 text-left text-xs font-semibold text-white/60 uppercase cursor-pointer select-none hover:text-white/80 transition-colors"
+              @click="col.sortable && toggleSort(col.key)"
+            >
+              <span class="inline-flex items-center gap-1">
+                {{ col.label }}
+                <span v-if="col.sortable && sortKey === col.key" class="text-accent">
+                  {{ sortAsc ? '\u25B2' : '\u25BC' }}
+                </span>
+              </span>
+            </th>
+            <th class="px-3 py-2 w-8" />
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-if="sortedItems.length === 0">
+            <td :colspan="columns.length + 1" class="px-3 py-3 text-center text-white/40 text-xs">
+              Aucune relation
+            </td>
+          </tr>
+          <tr
+            v-for="(friend, index) in sortedItems"
+            :key="friend.name"
+            class="cursor-pointer border-b border-white/5 transition-colors"
+            :class="index % 2 === 0 ? 'bg-surface-200/50' : ''"
+            @click="emit('select', friend)"
+          >
+            <td class="px-3 py-1.5">{{ friend.displayName }}</td>
+            <td v-if="resultLabel" class="px-3 py-1.5">{{ friend.result }}</td>
+            <td class="px-3 py-1.5">{{ friend.displayDate }}</td>
+            <td class="px-3 py-1.5">{{ friend.du }}</td>
+            <td class="px-3 py-1.5 w-8">
+              <button
+                v-if="!isBaseFriend(friend)"
+                class="text-red-400 hover:text-red-300 transition-colors"
+                title="Effacer relation"
+                @click.stop="emit('remove', friend.name)"
+              >
+                <svg class="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                  <circle cx="12" cy="12" r="10" />
+                  <path d="M15 9l-6 6M9 9l6 6" />
+                </svg>
+              </button>
+            </td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { Block0Date, type TableFriend } from '~/utils/gratewizard';
+
+const props = defineProps<{
+  items: TableFriend[];
+  baseFriends: { name: string; date: string }[];
+  resultLabel?: string;
+}>();
+
+const emit = defineEmits<{
+  select: [friend: TableFriend];
+  remove: [name: string];
+}>();
+
+const sortKey = ref<string>('name');
+const sortAsc = ref(true);
+
+const columns = computed(() => {
+  const cols = [
+    { key: 'name', label: 'NOM', sortable: true },
+  ];
+  if (props.resultLabel) {
+    cols.push({ key: 'result', label: props.resultLabel, sortable: true });
+  }
+  cols.push(
+    { key: 'date', label: 'DATE', sortable: true },
+    { key: 'du', label: 'DU', sortable: true },
+  );
+  return cols;
+});
+
+function toggleSort(key: string) {
+  if (sortKey.value === key) {
+    sortAsc.value = !sortAsc.value;
+  } else {
+    sortKey.value = key;
+    sortAsc.value = true;
+  }
+}
+
+const sortedItems = computed(() => {
+  const items = [...props.items];
+  const key = sortKey.value;
+  const dir = sortAsc.value ? 1 : -1;
+
+  return items.sort((a, b) => {
+    const first = a[key];
+    const second = b[key];
+    let cmp = 0;
+    switch (key) {
+      case 'name':
+        cmp = String(first).localeCompare(String(second));
+        break;
+      case 'result':
+      case 'du':
+        cmp = Number(first) - Number(second);
+        break;
+      case 'date':
+        cmp = new Date(a.date).getTime() - new Date(b.date).getTime();
+        break;
+    }
+    return cmp * dir;
+  });
+});
+
+function isBaseFriend(friend: TableFriend): boolean {
+  return props.baseFriends.some(({ name, date }) => name === friend.name && date === friend.date);
+}
+</script>