tab, toast grid 추가

stores/tab.ts

@@ -0,0 +1,36 @@
+// stores/tabs.ts
+import { defineStore } from 'pinia'
+
+export interface TabItem {
+  key: string
+  label: string
+  to: string
+  componentName: string
+}
+
+export const useTabsStore = defineStore('tabs', {
+  state: () => ({
+    activeTab: '' as string,
+    tabs: [] as { key: string; label: string; to: string; componentName: string }[]
+  }),
+  actions: {
+    addTab(tab: TabItem) {
+      if (!this.tabs.find(t => t.key === tab.key)) {
+        this.tabs.push(tab)
+      }
+      this.activeTab = tab.key
+    },
+    removeTab(key: string) {
+      const idx = this.tabs.findIndex(t => t.key === key)
+      if (idx !== -1) {
+        this.tabs.splice(idx, 1)
+        if (this.activeTab === key && this.tabs.length) {
+          this.activeTab = this.tabs[Math.max(idx - 1, 0)].key
+        }
+      }
+    },
+    setActiveTab(key: string) {
+      this.activeTab = key
+    }
+  }
+})