feat: enhance employee and symbol management with new features, improved UI components, and backend schema updates

packages/backend/convex/roles.ts

@@ -0,0 +1,44 @@
+import { v } from "convex/values";
+import { query } from "./_generated/server";
+
+/**
+ * Listar todas as roles
+ */
+export const listar = query({
+  args: {},
+  returns: v.array(
+    v.object({
+      _id: v.id("roles"),
+      nome: v.string(),
+      descricao: v.string(),
+      nivel: v.number(),
+      setor: v.optional(v.string()),
+    })
+  ),
+  handler: async (ctx) => {
+    return await ctx.db.query("roles").collect();
+  },
+});
+
+/**
+ * Buscar role por ID
+ */
+export const buscarPorId = query({
+  args: {
+    roleId: v.id("roles"),
+  },
+  returns: v.union(
+    v.object({
+      _id: v.id("roles"),
+      nome: v.string(),
+      descricao: v.string(),
+      nivel: v.number(),
+      setor: v.optional(v.string()),
+    }),
+    v.null()
+  ),
+  handler: async (ctx, args) => {
+    return await ctx.db.get(args.roleId);
+  },
+});
+