feat(packages): adiciona botão + para abrir dialog de novo pacote

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pages/packages/PackagesPage.vue

@@ -1,9 +1,23 @@
 <template>
   <div>
     <DefaultHeaderPage title="Pacotes" />
+
+    <div class="flex justify-end q-px-sm q-mb-md">
+      <q-btn
+        color="primary"
+        icon="mdi-plus"
+        unelevated
+        style="border-radius: 8px"
+        @click="openAddDialog"
+      />
+    </div>
   </div>
 </template>
 
 <script setup>
 import DefaultHeaderPage from "src/components/layout/DefaultHeaderPage.vue";
+
+const openAddDialog = () => {
+  console.log("Abrir dialog de adicionar pacote");
+};
 </script>