feat: P0-3 打印模板体系(区块化模板CRUD+打印中心重构)

CHANGELOG

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 # CHANGELOG
 
+- [2026-09-25 12:20] FEAT: v2.22 P0-3 打印模板体系。①OrderFormat 模型(blocks 区块 JSON: title/info/image/table/sign)+种子 2 套默认模板; ②/api/order-formats CRUD(区块类型校验+is_default 唯一默认); ③打印中心重构为模板驱动: A4 预览按 blocks 渲染(BOM 块自动拉取 /orders/{id}/bom), 模板管理对话框(区块增删/上下移/title 文本/info 字段多选/table kind 选择); 修复 move(i) v-for 索引 string|number 类型; vue-tsc 0 错+构建通过 (Files: src/huamenchuang/models/extend.py, src/huamenchuang/api/order_format.py, src/huamenchuang/api/router.py, src/huamenchuang/scripts/seed.py, frontend/src/views/PrinterView.vue, doc/API.md)
+
 - [2026-09-25 11:40] FEAT: v2.21 P0-2 订单 BOM 计算单+Excel 导出。①quote_service.bom() 从 drawing_data 重放算料输出型材下料清单(calcbomOrder 语义); ②services/excel_service.py 通用 xlsx 工具(标题/带样式表格/列宽)+order_workbook 订单导出(信息+型材清单+玻璃五金汇总+签审行); ③GET /orders/{id}/bom + GET /orders/{id}/export(attachment 下载); ④前端订单详情抽屉加"BOM 单"弹窗(汇总+下料表+合计米数)+导出 Excel(apiDownload blob 带 token); openpyxl 入依赖; vue-tsc 0 错+构建通过 (Files: pyproject.toml, src/huamenchuang/services/excel_service.py, src/huamenchuang/services/quote_service.py, src/huamenchuang/api/orders.py, frontend/src/api/index.ts, frontend/src/views/OrdersView.vue, doc/API.md)
 
 - [2026-09-25 11:00] FEAT: v2.20 P0-1 价格脚本引擎。①services/formula.py 安全公式引擎(递归下降解析, 无 eval; 四则/括号/min/max/round/abs/ceil/floor/sqrt; ALLOWED_VARS 变量白名单+validate_formula 语法校验); ②PriceScript 模型(系列名/target/frame~total 六作用项/formula/enabled)+种子 5 条示例; ③/api/scripts CRUD+preview 试算(product-test 语义); ④offer-price 集成 use_scripts/scripts 参数, 行级 scripted 标记+script_total 直取; ⑤产品管理页拆双 Tab(价格本/脚本 CRUD+试算), 报价弹窗"脚本计价"标记; 前端 vue-tsc 0 错+构建通过 (Files: src/huamenchuang/services/formula.py, src/huamenchuang/models/business.py, src/huamenchuang/api/script.py, src/huamenchuang/api/quote.py, src/huamenchuang/services/quote_service.py, src/huamenchuang/scripts/seed.py, frontend/src/views/ProductsView.vue, frontend/src/components/QuoteDialog.vue, doc/API.md)