feat: v0.3 报价算料引擎与仓库库存模块

后端:
- 报价算料: 从drawing_data几何提取型材清单(外框/中梃/扇框投影长度)
  与玻璃面积(鞋带公式), 套价格本计价, 支持样板/订单/自定义图纸三入口
- 仓库库存: 材料CRUD/出入库/流水/负库存拦截/预警线
- SQLite默认路径锚定项目根目录(修复cwd依赖)
前端:
- 仓库库存页(筛选/出入库对话框/预警高亮)
- 算料报价弹窗(样板库与订单详情入口, 支持打印)
- 路由与导航更新(8页面)
回归: 9个API端点全部200, 报价/优化/SPA路由验证通过

frontend/src/components/QuoteDialog.vue

@@ -0,0 +1,64 @@
+<template>
+  <el-dialog v-model="visible" title="算料报价" width="640px">
+    <div v-if="result" v-loading="loading">
+      <el-descriptions :column="3" border size="small">
+        <el-descriptions-item label="窗型尺寸">{{ result.width_mm }} × {{ result.height_mm }} mm</el-descriptions-item>
+        <el-descriptions-item label="玻璃面积">{{ result.glass_area_m2 }} ㎡</el-descriptions-item>
+        <el-descriptions-item label="总价">
+          <span class="total">{{ result.total }} 元</span>
+        </el-descriptions-item>
+      </el-descriptions>
+      <el-table :data="result.rows" size="small" border style="margin-top:10px">
+        <el-table-column prop="note" label="项目" min-width="110">
+          <template #default="{ row }">{{ row.note || kindLabel(row.kind) }}</template>
+        </el-table-column>
+        <el-table-column label="规格" width="110">
+          <template #default="{ row }">{{ row.length ? row.length + 'mm' : '-' }}</template>
+        </el-table-column>
+        <el-table-column prop="qty" label="数量" width="80" />
+        <el-table-column label="单价" width="90">
+          <template #default="{ row }">{{ row.unit_price }} {{ row.unit }}</template>
+        </el-table-column>
+        <el-table-column prop="amount" label="金额" width="100" />
+      </el-table>
+    </div>
+    <template #footer>
+      <el-button @click="visible = false">关闭</el-button>
+      <el-button type="primary" @click="print">打印报价单</el-button>
+    </template>
+  </el-dialog>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue'
+import { api } from '../api'
+
+const visible = ref(false)
+const loading = ref(false)
+const result = ref<any>(null)
+let source: { drawing_data?: string; template_id?: number; order_id?: number } = {}
+
+function kindLabel(k: string) {
+  return ({ frame: '外框', mullion: '中梃', sash: '扇框', glass: '玻璃', hardware: '五金' } as Record<string, string>)[k] ?? k
+}
+
+async function open(src: typeof source) {
+  source = src
+  visible.value = true
+  loading.value = true
+  try {
+    result.value = await api<any>('post', '/api/offer-price', src)
+  } finally { loading.value = false }
+}
+
+function print() {
+  window.print()
+}
+
+defineExpose({ open })
+</script>
+
+<style scoped>
+.total { color: #e6483d; font-size: 18px; font-weight: 700; }
+@media print { .el-dialog__footer { display: none; } }
+</style>

frontend/src/router/index.ts

@@ -16,6 +16,7 @@ const router = createRouter({
         { path: 'contracts', component: () => import('../views/ContractsView.vue'), meta: { title: '合同管理' } },
         { path: 'customers', component: () => import('../views/CustomersView.vue'), meta: { title: '客户管理' } },
         { path: 'templates', component: () => import('../views/TemplatesView.vue'), meta: { title: '样板库' } },
+        { path: 'warehouse', component: () => import('../views/WarehouseView.vue'), meta: { title: '仓库库存' } },
         { path: 'optimize', component: () => import('../views/OptimizeView.vue'), meta: { title: '优化下料' } },
       ],
     },

frontend/src/views/LayoutView.vue

@@ -9,6 +9,7 @@
         <el-menu-item index="/contracts"><el-icon><Document /></el-icon>合同管理</el-menu-item>
         <el-menu-item index="/customers"><el-icon><User /></el-icon>客户管理</el-menu-item>
         <el-menu-item index="/templates"><el-icon><Grid /></el-icon>样板库</el-menu-item>
+        <el-menu-item index="/warehouse"><el-icon><Box /></el-icon>仓库库存</el-menu-item>
         <el-menu-item index="/optimize"><el-icon><Scissor /></el-icon>优化下料</el-menu-item>
       </el-menu>
     </el-aside>

frontend/src/views/OrdersView.vue

@@ -72,6 +72,8 @@
           <span>客户：{{ detail.customer_name || '-' }}</span>
           <span>金额：{{ detail.money }}</span>
           <span>面积：{{ detail.area }}㎡</span>
+          <el-button size="small" type="success" plain @click="quoteRef.open({ order_id: detail.id })">算料报价</el-button>
+          <el-button size="small" @click="printOrder">打印订单</el-button>
         </div>
         <div class="canvas-box">
           <WindoorCanvas :drawing-data="detail.drawing_data" />
@@ -92,6 +94,7 @@
         </div>
       </div>
     </el-drawer>
+    <QuoteDialog ref="quoteRef" />
   </div>
 </template>
 
@@ -101,8 +104,12 @@ import { useRoute } from 'vue-router'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import { api } from '../api'
 import WindoorCanvas from '../components/WindoorCanvas.vue'
+import QuoteDialog from '../components/QuoteDialog.vue'
 
 const route = useRoute()
+const quoteRef = ref()
+
+function printOrder() { window.print() }
 
 const statusLabels: Record<number, string> = { 0: '意向单', 1: '正式单', 2: '生产中', 3: '已完工', 4: '已取消' }
 

frontend/src/views/TemplatesView.vue

@@ -28,10 +28,12 @@
         <div class="meta">
           <span>尺寸限制: {{ current.low_width }}-{{ current.high_width }} × {{ current.low_height }}-{{ current.high_height }} mm</span>
           <span>引用次数: {{ current.times }}</span>
+          <el-button type="success" size="small" @click="quoteRef.open({ template_id: current.id })">算料报价</el-button>
           <el-button type="primary" size="small" @click="useInOrder">用此样板下单</el-button>
         </div>
       </div>
     </el-dialog>
+    <QuoteDialog ref="quoteRef" />
   </div>
 </template>
 
@@ -40,8 +42,10 @@ import { onMounted, ref } from 'vue'
 import { useRouter } from 'vue-router'
 import { api } from '../api'
 import WindoorCanvas from '../components/WindoorCanvas.vue'
+import QuoteDialog from '../components/QuoteDialog.vue'
 
 const router = useRouter()
+const quoteRef = ref()
 const rows = ref<any[]>([])
 const total = ref(0)
 const page = ref(1)

frontend/src/views/WarehouseView.vue

@@ -0,0 +1,120 @@
+<template>
+  <el-card>
+    <div class="toolbar">
+      <el-input v-model="keyword" placeholder="名称/编码" clearable style="width:200px" @keyup.enter="load" />
+      <el-select v-model="material" placeholder="全部类型" clearable style="width:130px" @change="load">
+        <el-option value="profile" label="型材" /><el-option value="glass" label="玻璃" />
+        <el-option value="hardware" label="五金" /><el-option value="addon" label="配件" />
+      </el-select>
+      <el-button type="primary" @click="load">查询</el-button>
+      <div style="flex:1" />
+      <el-button type="primary" plain @click="openEdit()">新增材料</el-button>
+    </div>
+    <el-table :data="rows" v-loading="loading" stripe>
+      <el-table-column prop="bom_code" label="编码" width="90" />
+      <el-table-column prop="name" label="名称" min-width="140" />
+      <el-table-column label="类型" width="80">
+        <template #default="{ row }">{{ materialLabel(row.material) }}</template>
+      </el-table-column>
+      <el-table-column prop="spec" label="规格" width="110" />
+      <el-table-column prop="color" label="颜色" width="90" />
+      <el-table-column label="库存" width="110">
+        <template #default="{ row }">
+          <span :class="{ low: row.warning > 0 && row.count <= row.warning }">{{ row.count }}</span>
+          {{ row.unit }}
+        </template>
+      </el-table-column>
+      <el-table-column prop="price" label="单价" width="90" />
+      <el-table-column label="操作" width="170" fixed="right">
+        <template #default="{ row }">
+          <el-button size="small" type="success" plain @click="move(row, 1)">入</el-button>
+          <el-button size="small" type="warning" plain @click="move(row, -1)">出</el-button>
+          <el-button size="small" @click="openEdit(row)">编</el-button>
+        </template>
+      </el-table-column>
+    </el-table>
+    <el-pagination style="margin-top:12px; justify-content:flex-end" background layout="total, prev, pager, next"
+                   :total="total" :page-size="page_size" v-model:current-page="page" @current-change="load" />
+
+    <el-dialog v-model="editVisible" :title="form.id ? '编辑材料' : '新增材料'" width="520px">
+      <el-form :model="form" label-width="80px">
+        <el-form-item label="名称"><el-input v-model="form.name" /></el-form-item>
+        <el-form-item label="类型">
+          <el-select v-model="form.material" style="width:100%">
+            <el-option value="profile" label="型材" /><el-option value="glass" label="玻璃" />
+            <el-option value="hardware" label="五金" /><el-option value="addon" label="配件" />
+          </el-select>
+        </el-form-item>
+        <el-form-item label="规格"><el-input v-model="form.spec" /></el-form-item>
+        <el-form-item label="颜色"><el-input v-model="form.color" /></el-form-item>
+        <el-form-item label="单位"><el-input v-model="form.unit" style="width:100px" /></el-form-item>
+        <el-form-item label="单价"><el-input-number v-model="form.price" :min="0" :precision="2" /></el-form-item>
+        <el-form-item label="库存"><el-input-number v-model="form.count" :min="0" /></el-form-item>
+        <el-form-item label="预警线"><el-input-number v-model="form.warning" :min="0" /></el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="editVisible = false">取消</el-button>
+        <el-button type="primary" @click="save">保存</el-button>
+      </template>
+    </el-dialog>
+  </el-card>
+</template>
+
+<script setup lang="ts">
+import { onMounted, reactive, ref } from 'vue'
+import { ElMessage, ElMessageBox } from 'element-plus'
+import { api } from '../api'
+
+const rows = ref<any[]>([])
+const total = ref(0)
+const page = ref(1)
+const page_size = 15
+const keyword = ref('')
+const material = ref<string | undefined>()
+const loading = ref(false)
+const editVisible = ref(false)
+const form = reactive<any>({ id: 0, name: '', material: 'profile', spec: '', color: '', unit: '根', price: 0, count: 0, warning: 0 })
+
+function materialLabel(m: string) {
+  return ({ profile: '型材', glass: '玻璃', hardware: '五金', addon: '配件' } as Record<string, string>)[m] ?? m
+}
+
+async function load() {
+  loading.value = true
+  try {
+    const qs = `page=${page.value}&page_size=${page_size}&keyword=${keyword.value}${material.value ? `&material=${material.value}` : ''}`
+    const d = await api<any>('get', `/api/warehouse/list?${qs}`)
+    rows.value = d.data
+    total.value = d.total
+  } finally { loading.value = false }
+}
+
+function openEdit(row?: any) {
+  Object.assign(form, row ?? { id: 0, name: '', material: 'profile', spec: '', color: '', unit: '根', price: 0, count: 0, warning: 0 })
+  editVisible.value = true
+}
+
+async function save() {
+  if (form.id) await api('put', `/api/warehouse/${form.id}`, form)
+  else await api('post', '/api/warehouse', form)
+  ElMessage.success('已保存')
+  editVisible.value = false
+  load()
+}
+
+async function move(row: any, direction: number) {
+  const { value } = await ElMessageBox.prompt(
+    `${row.name} ${direction === 1 ? '入库' : '出库'}数量(${row.unit})`, '出入库',
+    { inputValue: '1', inputPattern: /^\d+(\.\d+)?$/, inputErrorMessage: '请输入数字' })
+  await api('post', '/api/warehouse/move', { item_id: row.id, direction, count: Number(value), note: '页面操作' })
+  ElMessage.success('操作成功')
+  load()
+}
+
+onMounted(load)
+</script>
+
+<style scoped>
+.toolbar { display: flex; gap: 10px; margin-bottom: 12px; }
+.low { color: #f56c6c; font-weight: 700; }
+</style>