refactor: enhance licitacoes page layout and add contratos permissions

- Improved the layout of the licitacoes page for better readability and user experience.
- Added new permissions for contratos, including listar, criar, editar, excluir, and ver actions.
- Introduced a new schema for contratos with relevant fields and indexes to support contract management.

packages/backend/convex/_generated/api.d.ts

@@ -21,6 +21,7 @@ import type * as auth_utils from "../auth/utils.js";
 import type * as chamados from "../chamados.js";
 import type * as chat from "../chat.js";
 import type * as configuracaoEmail from "../configuracaoEmail.js";
+import type * as contratos from "../contratos.js";
 import type * as crons from "../crons.js";
 import type * as cursos from "../cursos.js";
 import type * as dashboard from "../dashboard.js";
@@ -71,6 +72,7 @@ declare const fullApi: ApiFromModules<{
   chamados: typeof chamados;
   chat: typeof chat;
   configuracaoEmail: typeof configuracaoEmail;
+  contratos: typeof contratos;
   crons: typeof crons;
   cursos: typeof cursos;
   dashboard: typeof dashboard;