feat(calculator): 食谱计算器历史记录功能（test-0415 反馈2-2）

后端：
- GET /api/front/tool/calculator/history 倒序分页返回当前用户记录摘要
- ToolCalculatorService.getHistory(PageParamRequest) 实现
- 摘要含 id / createdAt / bmi / ckdStage / proteinIntake / energyIntake / isAdopted / hasDialysis

前端：
- api/tool.js 新增 getCalculatorHistory(params)
- pages/tool/calculator-history.vue 历史列表页（下拉刷新 + 触底加载）
- 点击行跳转 calculator-result?id=xxx 复用结果页，自然支持「重新载入参数」
- pages.json 注册路由

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

msh_single_uniapp/pages/tool/calculator-history.vue

@@ -0,0 +1,190 @@
+<template>
+	<view class="history-page">
+		<view class="history-list" v-if="list.length > 0">
+			<view
+				class="history-item"
+				v-for="(item, index) in list"
+				:key="item.id || index"
+				@click="openDetail(item)"
+			>
+				<view class="row top">
+					<text class="time">{{ formatTime(item.createdAt) }}</text>
+					<text class="status" :class="{ adopted: item.isAdopted === 1 }">
+						{{ item.isAdopted === 1 ? '已采纳' : '未采纳' }}
+					</text>
+				</view>
+				<view class="row metrics">
+					<view class="metric">
+						<text class="label">CKD</text>
+						<text class="value">{{ item.ckdStage || '—' }}</text>
+					</view>
+					<view class="metric">
+						<text class="label">BMI</text>
+						<text class="value">{{ formatBmi(item.bmi) }}</text>
+					</view>
+					<view class="metric">
+						<text class="label">蛋白质</text>
+						<text class="value">{{ item.proteinIntake || '—' }} g</text>
+					</view>
+					<view class="metric">
+						<text class="label">能量</text>
+						<text class="value">{{ item.energyIntake || '—' }} kcal</text>
+					</view>
+				</view>
+				<view class="row hint" v-if="item.hasDialysis === 1">
+					<text>· 已透析</text>
+				</view>
+			</view>
+		</view>
+
+		<view class="empty" v-else-if="!loading">
+			<text class="empty-text">暂无计算记录</text>
+			<view class="empty-btn" @click="goCalculator">去计算</view>
+		</view>
+
+		<view class="loading-tip" v-if="loading">加载中…</view>
+		<view class="more-tip" v-if="hasMore && !loading && list.length > 0" @click="loadMore">点击加载更多</view>
+		<view class="end-tip" v-if="!hasMore && list.length > 0">没有更多了</view>
+	</view>
+</template>
+
+<script>
+import { getCalculatorHistory } from '@/api/tool.js'
+
+export default {
+	name: 'CalculatorHistory',
+	data() {
+		return {
+			list: [],
+			page: 1,
+			limit: 20,
+			hasMore: true,
+			loading: false
+		}
+	},
+	onLoad() {
+		this.fetch()
+	},
+	onPullDownRefresh() {
+		this.list = []
+		this.page = 1
+		this.hasMore = true
+		this.fetch().finally(() => uni.stopPullDownRefresh())
+	},
+	onReachBottom() {
+		if (this.hasMore && !this.loading) this.loadMore()
+	},
+	methods: {
+		async fetch() {
+			if (this.loading) return
+			this.loading = true
+			try {
+				const res = await getCalculatorHistory({ page: this.page, limit: this.limit })
+				const rows = (res && res.data && res.data.list) || (res && res.list) || []
+				this.list = this.page === 1 ? rows : this.list.concat(rows)
+				if (rows.length < this.limit) this.hasMore = false
+			} catch (e) {
+				console.error('加载历史失败', e)
+				uni.showToast({ title: '加载失败', icon: 'none' })
+			} finally {
+				this.loading = false
+			}
+		},
+		loadMore() {
+			this.page += 1
+			this.fetch()
+		},
+		openDetail(item) {
+			if (!item || !item.id) return
+			uni.navigateTo({ url: '/pages/tool/calculator-result?id=' + item.id })
+		},
+		goCalculator() {
+			uni.navigateTo({ url: '/pages/tool/calculator' })
+		},
+		formatTime(s) {
+			if (!s) return ''
+			try {
+				const d = new Date(typeof s === 'string' ? s.replace(/-/g, '/') : s)
+				const pad = (n) => (n < 10 ? '0' + n : '' + n)
+				return d.getFullYear() + '-' + pad(d.getMonth() + 1) + '-' + pad(d.getDate()) + ' ' + pad(d.getHours()) + ':' + pad(d.getMinutes())
+			} catch (e) {
+				return String(s)
+			}
+		},
+		formatBmi(b) {
+			if (b == null) return '—'
+			return Number(b).toFixed(1)
+		}
+	}
+}
+</script>
+
+<style lang="scss" scoped>
+.history-page {
+	min-height: 100vh;
+	background: #f4f5f7;
+	padding: 24rpx;
+}
+.history-list {
+	display: flex;
+	flex-direction: column;
+	gap: 20rpx;
+}
+.history-item {
+	background: #ffffff;
+	border-radius: 16rpx;
+	padding: 24rpx;
+	box-shadow: 0 2rpx 8rpx rgba(0,0,0,0.04);
+}
+.row {
+	display: flex;
+	flex-direction: row;
+	align-items: center;
+}
+.top {
+	justify-content: space-between;
+	margin-bottom: 16rpx;
+	.time { font-size: 26rpx; color: #6b7280; }
+	.status {
+		font-size: 24rpx;
+		padding: 4rpx 12rpx;
+		border-radius: 8rpx;
+		background: #eef0f4;
+		color: #6b7280;
+		&.adopted { background: #e8f5e9; color: #2e7d32; }
+	}
+}
+.metrics {
+	flex-wrap: wrap;
+	gap: 24rpx;
+	.metric {
+		display: flex;
+		flex-direction: column;
+		min-width: 140rpx;
+		.label { font-size: 22rpx; color: #9ca3af; margin-bottom: 4rpx; }
+		.value { font-size: 28rpx; color: #1f2937; font-weight: 600; }
+	}
+}
+.hint { margin-top: 12rpx; color: #b91c1c; font-size: 24rpx; }
+.empty {
+	display: flex;
+	flex-direction: column;
+	align-items: center;
+	padding: 200rpx 0;
+	.empty-text { color: #9ca3af; font-size: 28rpx; margin-bottom: 32rpx; }
+	.empty-btn {
+		padding: 16rpx 48rpx;
+		background: #fc4141;
+		color: #fff;
+		border-radius: 32rpx;
+		font-size: 28rpx;
+	}
+}
+.loading-tip, .more-tip, .end-tip {
+	text-align: center;
+	color: #9ca3af;
+	font-size: 24rpx;
+	padding: 32rpx 0;
+}
+.more-tip { color: #2563eb; }
+</style>