chore: 删除未使用的自定义 TabBar 组件，AGENTS.md 不入库

H5 端 pages.json 的 tabBar.custom 不生效、由 uni-app 自渲染底栏，该组件自提交起未被任何页面使用（仅 mine.vue 留有 import 与注释占位），已一并清理并回归验证 11 个页面渲染与底栏正常

components/TabBar/TabBar.vue

@@ -1,81 +0,0 @@
-<template>
-	<view class="tab-bar">
-		<view class="tab-bar-item" v-for="(item, index) in tabList" :key="index" @click="switchTab(index)">
-			<image class="tab-icon" :src="current === index ? item.selectedIconPath : item.iconPath"></image>
-			<text class="tab-text" :style="{ color: current === index ? selectedColor : color }">{{ item.text }}</text>
-		</view>
-	</view>
-</template>
-
-<script>
-	export default {
-		name: 'TabBar',
-		props: {
-			current: {
-				type: Number,
-				default: 0
-			}
-		},
-		data() {
-			return {
-				color: '#999999',
-				selectedColor: '#007aff',
-				backgroundColor: '#ffffff',
-				tabList: [
-					{
-						pagePath: '/pages/index/index',
-						iconPath: '/static/shouye.png',
-						selectedIconPath: '/static/shouye_select.png',
-						text: '首页'
-					},
-					{
-						pagePath: '/pages/mine/mine',
-						iconPath: '/static/wode.png',
-						selectedIconPath: '/static/wode_select.png',
-						text: '我的'
-					}
-				]
-			}
-		},
-		methods: {
-			switchTab(index) {
-				if (this.current === index) return;
-				uni.switchTab({
-					url: this.tabList[index].pagePath
-				})
-			}
-		}
-	}
-</script>
-
-<style scoped>
-	.tab-bar {
-		position: fixed;
-		bottom: 0;
-		left: 0;
-		right: 0;
-		height: 100rpx;
-		background-color: #ffffff;
-		display: flex;
-		align-items: center;
-		justify-content: space-around;
-		border-top: 1rpx solid rgba(242, 242, 242, 0.5);
-		padding-bottom: env(safe-area-inset-bottom);
-	}
-	.tab-bar-item {
-		display: flex;
-		flex-direction: column;
-		align-items: center;
-		justify-content: center;
-		flex: 1;
-		height: 100%;
-	}
-	.tab-icon {
-		width: 48rpx;
-		height: 48rpx;
-		margin-bottom: 4rpx;
-	}
-	.tab-text {
-		font-size: 22rpx;
-	}
-</style>