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/services/duniter/v2.ts

@@ -0,0 +1,68 @@
+import { ss58ToV1Pubkey } from '~/utils/ss58';
+import type { DuniterAdapter, MonetaryData } from './types';
+
+const SQUID_URL = 'https://gt-squid.axiom-team.fr/v1/graphql';
+
+async function gql<T>(query: string): Promise<T> {
+  const res = await fetch(SQUID_URL, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ query }),
+  });
+  const json = await res.json();
+  if (json.errors) throw new Error(json.errors[0].message);
+  return json.data;
+}
+
+export const v2Adapter: DuniterAdapter = {
+  async fetchMonetary(): Promise<MonetaryData> {
+    const data = await gql<{
+      universalDividends: { nodes: (Omit<MonetaryData, 'udBlockNumbers'> & Record<string, unknown>)[] };
+    }>(`{
+      universalDividends(first: 1, orderBy: BLOCK_NUMBER_DESC) {
+        nodes { monetaryMass membersCount amount timestamp blockNumber }
+      }
+    }`);
+    return { ...data.universalDividends.nodes[0], udBlockNumbers: [] };
+  },
+
+  async fetchMemberPubkeys(): Promise<string[]> {
+    const accountIds: string[] = [];
+    let offset = 0;
+    const pageSize = 1000;
+
+    while (true) {
+      const data = await gql<{
+        identities: { nodes: { accountId: string }[] };
+      }>(`{
+        identities(first: ${pageSize}, offset: ${offset}, filter: { isMember: { equalTo: true } }) {
+          nodes { accountId }
+        }
+      }`);
+
+      const nodes = data.identities.nodes;
+      for (const node of nodes) {
+        accountIds.push(node.accountId);
+      }
+
+      if (nodes.length < pageSize) break;
+      offset += pageSize;
+    }
+
+    // Convert SS58 accountIds to Cesium+ v1 base58 pubkeys
+    const pubkeys: string[] = [];
+    for (const id of accountIds) {
+      try {
+        pubkeys.push(ss58ToV1Pubkey(id));
+      } catch {
+        // Skip invalid addresses
+      }
+    }
+    return pubkeys;
+  },
+
+  async fetchMemberJoinBlocks(_pubkeys: string[]): Promise<Map<string, number>> {
+    // TODO: implement using squid GraphQL after v2 migration
+    return new Map();
+  },
+};