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>

apps/api/prisma.config.ts

@@ -14,4 +14,7 @@ export default defineConfig({
       process.env['DATABASE_URL'] ??
       'postgresql://sar:sar_dev_password@localhost:5432/sar_workspace_dev',
   },
+  migrations: {
+    seed: 'tsx prisma/seed.ts',
+  },
 });