docs(samples): 新增苏采云 IT 集成招标文件样本清单

10 份公开采购文件的清单与来源；原始文件不入库，
由 fetch.sh 重新下载并校验 sha256。

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

samples/tenders/fetch.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# 重新下载样本招标文件并校验 sha256 前缀（见 README.md）。
+# 用法：samples/tenders/fetch.sh
+set -euo pipefail
+cd "$(dirname "$0")"
+
+BASE=http://www.ccgp-jiangsu.gov.cn/fileApi/320000
+# ID  项目编号  附件路径  sha256 前 16 位
+SAMPLES="
+S01 JSZC-320000-SHGK-G2026-0101 202610/b6adafa7ffcb4657a01a3c934b62b63d.doc 3c95deee7bdb6ec4
+S02 JSZC-320300-XZCG-G2026-0053 202610/c7752430376d4fc98aa3f40a0bd6a310.doc c46209f78e25bae7
+S03 JSZC-320404-CZZY-G2026-0029 202611/f99dcbc60cad4fcead3e31713e5d5deb.doc ac80ee1eb3d662e2
+S04 JSZC-320613-TDGW-G2026-0042 202610/f706549deb5c4aa0a96fd83f566c29a4.doc efa6a1e0b885a31b
+S05 JSZC-320200-JZCG-G2026-0089 202611/8d9136181ddb4790a2b66b02f329f1ec.doc 89d0993eecc36b35
+S06 JSZC-320700-JZCG-G2026-0150 202610/5e5b3f43e53a40568866243fdfecacce.doc 4020143e0ecfae23
+S07 JSZC-320000-HYGS-G2026-0036 202611/1e5f2270dee747feb00c7fa1649d4fd8.doc fdc34076f4033a2e
+S08 JSZC-320000-SCZX-C2026-0520 202611/c7df4b5a37ff4891910fdb2ed45ad764.doc f0294309136c843a
+S09 JSZC-320000-HWZX-C2026-0687 202611/b44d964ebe0846ea99964fdfdbb60452.doc 34db1f81260af789
+S10 JSZC-320100-JZCG-G2026-0369 202610/4eea6d022e1f4dbcb3f7f655e8808b6b.doc c4f46e53812679da
+"
+
+echo "$SAMPLES" | while read -r id code path sha; do
+  [ -z "$id" ] && continue
+  mkdir -p "$id"
+  out="$id/${code}采购文件.doc"
+  if [ ! -f "$out" ]; then
+    curl -sSf -m 60 -A 'Mozilla/5.0' -o "$out" "$BASE/$path"
+    sleep 1.5
+  fi
+  actual=$(shasum -a 256 "$out" | cut -c1-16)
+  if [ "$actual" = "$sha" ]; then echo "$id ok"; else echo "$id 校验不一致（$actual），源文件可能已更新"; fi
+  [ -f "$id/text.txt" ] || textutil -convert txt -output "$id/text.txt" "$out"
+done