feat: Enhance AI Assistant with new actions and context handling

src/composables/useToast.ts

@@ -0,0 +1,16 @@
+import { ref } from "vue";
+
+const message = ref("");
+const visible = ref(false);
+let timer = 0;
+
+export function useToast() {
+  function toast(msg: string, duration = 2000) {
+    message.value = msg;
+    visible.value = true;
+    clearTimeout(timer);
+    timer = window.setTimeout(() => { visible.value = false; }, duration);
+  }
+
+  return { message, visible, toast };
+}