feat: Introduce structured table definitions in convex/tables for various entities and remove the todos example table.

packages/backend/convex/tables/empresas.ts

@@ -0,0 +1,29 @@
+import { defineTable } from 'convex/server';
+import { v } from 'convex/values';
+
+export const empresasTable = {
+	empresas: defineTable({
+		razao_social: v.string(),
+		nome_fantasia: v.optional(v.string()),
+		cnpj: v.string(),
+		telefone: v.string(),
+		email: v.string(),
+		descricao: v.optional(v.string()),
+		enderecoId: v.optional(v.id('enderecos')),
+		criadoPor: v.optional(v.id('usuarios'))
+	})
+		.index('by_razao_social', ['razao_social'])
+		.index('by_cnpj', ['cnpj']),
+
+	contatosEmpresa: defineTable({
+		empresaId: v.id('empresas'),
+		nome: v.string(),
+		funcao: v.string(),
+		email: v.string(),
+		telefone: v.string(),
+		adicionadoPor: v.optional(v.id('usuarios')),
+		descricao: v.optional(v.string())
+	})
+		.index('by_empresa', ['empresaId'])
+		.index('by_email', ['email'])
+};