feat(api,web): c2 consulta de clientes — list + search + auth flow

prisma: modelo Client + migração 20260527225728_add_client + seed dev (10 clientes)
api: GET /clients (list, busca, filtro atividade/financeiro, paginação) + GET /clients/:id
     rep vê carteira própria; supervisor/admin vê tudo; activityStatus calculado de lastOrderAt
@sar/api-interface: ClientSummarySchema, ClientDetailSchema, ClientListResponseSchema
web: ClientsPage (tabela AntD, busca, filtro), DevLogin (token dev), authStore, Bearer no apiFetch
oq-4 resolvida: creditLimit gerenciado no SAR

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

package.json

@@ -83,6 +83,7 @@
     "prettier": "^3.8.3",
     "ts-jest": "^29.4.0",
     "ts-node": "10.9.1",
+    "tsx": "^4.22.3",
     "typescript": "catalog:",
     "typescript-eslint": "^8.40.0",
     "vite": "^8.0.0",