feat: 读标补齐五类清单与项目基本信息，修复国动样本暴露的 4 个问题

- 文字层 v2：页眉页脚带单独成句；写到页尾的句子和下一页首句接续（出处两页各一条）
- 结构识别（最小版）：十进制编号、冒号引出的列表找上级条款；上级条款写明无效的，条目照样认定
- 抽取：资格、评分、日期与递交、技术参数、项目基本信息各一份提示词；实质性条款出 v2
  （认上级条款、补「做无效响应处理」等写法）；各类取值核对；按首句合并；
  拆开被合成一条的列举条款；描述标注方式的句子和表头碎片不当条款；* 号标注
- 项目：解析出的名称、编号、采购人、预算、截止时间、分包写回项目，用户改过的不覆盖
- 前端：清单项显示分值、参数要求、日期、证明材料
- 测试 40 个，新增两页虚构样例

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/lib/labels.ts

@@ -132,3 +132,41 @@ export function fmtSize(bytes: number): string {
   if (bytes < 1024 * 1024) return `${Math.max(1, Math.round(bytes / 1024))} KB`;
   return `${(bytes / 1024 / 1024).toFixed(1)} MB`;
 }
+
+/* ---------- 清单项的结构化取值（ItemSpec，openapi.yaml）：只把原文里有的值整理出来显示，不推测 ---------- */
+const PART: Record<string, string> = { price: "价格分", technical: "技术分", commercial: "商务分" };
+const QUAL_KIND: Record<string, string> = { general: "通用资格", specific: "特定资格", credit: "信用要求" };
+const OP: Record<string, string> = { ">=": "≥", "<=": "≤", "=": "=", contains: "包含", supports: "支持" };
+const DATE_KIND: Record<string, string> = {
+  question_deadline: "提疑截止",
+  bid_deadline: "投标截止",
+  opening: "开标",
+  deposit_deadline: "保证金截止",
+  validity: "有效期",
+};
+const SUBMISSION: Record<string, string> = { electronic: "电子递交", paper: "纸质递交", ca_encrypted: "CA 加密", mixed: "电子 + 纸质" };
+
+type Spec = Record<string, Record<string, unknown> | undefined>;
+const str = (v: unknown): string => (v === null || v === undefined ? "" : String(v));
+
+export function specFacts(spec: unknown): string[] {
+  const s = (spec ?? {}) as Spec;
+  const out: string[] = [];
+  const q = s.qualification;
+  if (q && QUAL_KIND[str(q.kind)]) out.push(QUAL_KIND[str(q.kind)]!);
+  const sc = s.scoring;
+  if (sc) {
+    if (sc.points) out.push(`分值 ${str(sc.points)}`);
+    if (PART[str(sc.part)]) out.push(PART[str(sc.part)]!);
+  }
+  const t = s.tech_param;
+  if (t && t.value) out.push([str(t.param), OP[str(t.op)] ?? "", `${str(t.value)}${str(t.unit)}`].filter(Boolean).join(" "));
+  const d = s.schedule;
+  if (d) {
+    if (d.at) out.push(`${DATE_KIND[str(d.date_kind)] ?? "时间"} ${fmtDateTime(str(d.at))}`);
+    else if (DATE_KIND[str(d.date_kind)]) out.push(DATE_KIND[str(d.date_kind)]!);
+    if (d.deposit_amount) out.push(`保证金 ${str(d.deposit_amount)}`);
+    if (SUBMISSION[str(d.submission_mode)]) out.push(SUBMISSION[str(d.submission_mode)]!);
+  }
+  return out;
+}