[UI 개선] 서브메뉴 및 탭 바 컴포넌트 추가, AppHeader 및 기본 레이아웃 수정, API 호출 로직 개선

components/layout/TabBar.vue

@@ -0,0 +1,135 @@
+<template>
+  <div class="tab-bar">
+    <div
+      v-for="tab in tabsStore.tabs"
+      :key="tab.key"
+      class="tab-item"
+      :class="{ active: tabsStore.activeTab === tab.key }"
+      @click="handleTabClick(tab.key)"
+    >
+      <span class="tab-label">{{ tab.label }}</span>
+      <button
+        v-if="tabsStore.activeTab !== tab.key"
+        class="close-btn"
+        type="button"
+        @click.stop="handleTabClose(tab.key)"
+      >
+        ×
+      </button>
+    </div>
+
+    <button class="add-tab-btn" type="button" @click="handleAddTab">＋</button>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { useTabsStore } from "@/stores/tab";
+
+const tabsStore = useTabsStore();
+
+const handleTabClick = (tabKey: number) => tabsStore.setActiveTab(tabKey);
+const handleTabClose = (tabKey: number) => tabsStore.removeTab(tabKey);
+const handleAddTab = () => tabsStore.addTab();
+</script>
+
+<style scoped>
+.tab-bar {
+  display: flex;
+  gap: 0.5rem;
+  padding: 0.75rem 1rem;
+  background: #ffffff;
+  border-bottom: 1px solid #e5e7eb;
+  overflow-x: auto;
+  scrollbar-width: none;
+  -ms-overflow-style: none;
+}
+
+.tab-bar::-webkit-scrollbar {
+  display: none;
+}
+
+.tab-item {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.5rem 0.75rem;
+  background: #f8fafc;
+  border: 1px solid #e2e8f0;
+  border-radius: 0.5rem;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  white-space: nowrap;
+  min-width: fit-content;
+  position: relative;
+}
+
+.tab-item:hover {
+  background: #f1f5f9;
+  border-color: #cbd5e1;
+}
+
+.tab-item.active {
+  background: #3b82f6;
+  border-color: #3b82f6;
+  color: #ffffff;
+}
+
+.tab-item.active:hover {
+  background: #2563eb;
+  border-color: #2563eb;
+}
+
+.tab-label {
+  font-size: 0.875rem;
+  font-weight: 500;
+  line-height: 1.25rem;
+}
+
+.close-btn {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 1.25rem;
+  height: 1.25rem;
+  background: transparent;
+  border: none;
+  border-radius: 0.25rem;
+  cursor: pointer;
+  font-size: 1rem;
+  line-height: 1;
+  color: inherit;
+  transition: background-color 0.2s ease;
+  flex-shrink: 0;
+}
+
+.close-btn:hover {
+  background: rgba(0, 0, 0, 0.1);
+}
+
+.tab-item.active .close-btn:hover {
+  background: rgba(255, 255, 255, 0.2);
+}
+
+.add-tab-btn {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0.5rem 0.75rem;
+  background: #f1f5f9;
+  border: 1px solid #e2e8f0;
+  border-radius: 0.5rem;
+  cursor: pointer;
+  font-size: 1.125rem;
+  line-height: 1;
+  color: #64748b;
+  transition: all 0.2s ease;
+  flex-shrink: 0;
+  min-width: 2.5rem;
+}
+
+.add-tab-btn:hover {
+  background: #e2e8f0;
+  border-color: #cbd5e1;
+  color: #475569;
+}
+</style>