diff --git a/AGENTS.md b/AGENTS.md
index d720fa6..c8a6e3b 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -222,4 +222,5 @@ samples/
 - 2026-11-04：查标第 5 步检查报告：导出 → 后台用 Gotenberg 生成 A4 PDF（首页覆盖范围和免责声明、问题明细、需人工核对附录，页眉 logo、页脚免责一句和页码）→ 加密归档，可重复下载；前端加「报告」标签页（选项、导出、内嵌预览、历次下载）。补了项目状态流转（递交 / 撤销递交 / 归档 / 撤销归档，致命未处理也能递交，递交后只读，都留痕）。产品可以从上传招标文件一路走到导出报告、标记递交。见 `docs/architecture/m3-plan.md` 进度。
 - 2026-11-04：查标第 4 步资质库和资质匹配（`docs/architecture/qualification-plan.md`，QL1–QL7 全部按建议确认）。资质库页可增删改、挂证书扫描件（企业级密钥加密），到期按进行中项目的投标截止日提醒；查标按证书类别词表（16 类，产品证书、人员证书不进匹配）核对有效期、等级、有没有覆盖，投标文字层按清单项定级，只有资质库记录的降一级、出处显示「依据：资质库记录」，规则集 2026.11-r4。开发集不退化；派生的资质情况表上 D12 3 / 3、D18 2 / 2、规矩的资质表 0 误报，但表和词表是对着同一批样本写的，泛化要等国动真实文件（`check-eval.md` §13）。
 - 2026-11-04：项目基本信息修改和分包选择（FR-M2-03、04，`docs/architecture/project-info-plan.md`，PI1–PI7 全部按建议确认）。新增「概览」标签页（项目要点可改、带出处、可恢复 AI 值；采购包；关键日期）和选包页（手工调整、一键「不分包」）；清单默认只列通用 + 所投的包；检查记下当时用的截止时间、限价、所投的包、法律体系，报告按它写，之后改了信息查标页提示重新检查。样本里分包识别对的只有 S10（S06 把分项认成 5 个包，S01、S08 单包写了包号），改进分包抽取记进读标专项。
-- 下一步：国动真实投标文件（用户晚些提供，到时先读标、请用户看清单，再查标一次；请用户按公司真实证书录资质库）；其余可做：补遗追加（FR-M2-10，含补遗带来的新值确认）、第 6 步前端补齐（键盘操作、批量处理、判断有误反馈、日期选择器的日历弹层、概览页的检查记录和文件卡）、M6 剩下的 P0（额度流水、套餐开通、数据删除、运营后台）。
+- 2026-11-05：补遗追加（FR-M2-10，`docs/architecture/addendum-plan.md`，AD1–AD6 全部按建议确认）。招标文件解析后可以追加补遗 / 澄清（单独解析、扣 1 次），新条目标「补遗 N」进正式清单、清单回到草稿；同一种日期时间不同的旧条目标「已被补遗 N 更新」，项目字段的新值在概览「采用 / 不采用」，采用截止时间时日期条目一起确认，没确认前查标用旧值、检查预览提示。补遗不改项目名称、编号、采购人等（更正公告标题会被抽成项目名称）。真实模型对虚构更正公告抽得对；还没有真实补遗样本。
+- 下一步：国动真实投标文件（用户晚些提供，到时先读标、请用户看清单，再查标一次；请用户按公司真实证书录资质库；有更正公告一起要）；其余可做：第 6 步前端补齐（键盘操作、批量处理、判断有误反馈、日期选择器的日历弹层、概览页的检查记录和文件卡）、M6 剩下的 P0（额度流水、套餐开通、数据删除、运营后台）。
diff --git a/apps/web/src/components/ChecklistItemRow.vue b/apps/web/src/components/ChecklistItemRow.vue
index 90980f0..5f97a15 100644
--- a/apps/web/src/components/ChecklistItemRow.vue
+++ b/apps/web/src/components/ChecklistItemRow.vue
@@ -33,12 +33,14 @@ const facts = computed(() => specFacts(props.item.spec));
       <div class="t">{{ item.title }}</div>
       <div class="meta">
         <span v-if="item.origin === 'ai'" class="tag ai">AI</span>
-        <span v-else class="tag">{{ item.origin_label || (item.origin === "human" ? "人工添加" : "规则") }}</span>
+        <span v-else-if="item.origin === 'human' || !item.origin_document || item.origin_document.label === '招标文件'" class="tag">{{ item.origin === "human" ? "人工添加" : "规则" }}</span>
+        <span v-if="item.origin !== 'human' && item.origin_document && item.origin_document.label !== '招标文件'" class="tag">{{ item.origin_document.label }}</span>
         <span v-for="c in item.categories" :key="c" class="tag">{{ category(c) }}</span>
         <span class="tag">{{ item.lot_no ? `采购包 ${item.lot_no}` : "通用" }}</span>
         <span v-if="pending && item.pending_reason" class="flag">{{ [pendingReason(item.pending_reason), failureText(item.ai_values)].filter(Boolean).join(" · ") }}</span>
         <span v-if="item.no_citation_ack" class="flag">人工确认、无出处</span>
         <span v-if="item.edited_fields.length" class="flag">已修改</span>
+        <span v-if="item.superseded_by && !item.superseded_by.confirmed" class="flag">已被{{ item.superseded_by.document_label }} 更新，待确认</span>
       </div>
       <p v-if="facts.length" class="facts">
         <span v-for="f in facts" :key="f">{{ f }}</span>
diff --git a/apps/web/src/pages/BidCheckPage.vue b/apps/web/src/pages/BidCheckPage.vue
index ef2a52b..874df2f 100644
--- a/apps/web/src/pages/BidCheckPage.vue
+++ b/apps/web/src/pages/BidCheckPage.vue
@@ -213,6 +213,12 @@ async function start() {
           本次查：通用条目 + {{ project.data.value.bidding_lots.map((n) => `采购包 ${n}`).join("、") }}
           <RouterLink class="lnk" :to="{ name: 'lots', params: { projectId } }">更改所投的包</RouterLink>
         </p>
+        <!-- AD4：补遗带来的新值没确认前查标用旧值；只提示，不阻止检查 -->
+        <div v-if="pv?.pending_updates" class="alert warn" role="note">
+          <span class="ico w" aria-hidden="true">!</span>
+          <p>补遗带来的新值还有 <span class="fig">{{ pv.pending_updates }}</span> 处没确认，这次检查按原来的值。可以先在概览和读标页确认。</p>
+          <RouterLink class="btn sm" :to="{ name: 'overview', params: { projectId } }">去确认</RouterLink>
+        </div>
         <div v-if="startErr" class="alert warn" role="alert"><span class="ico w" aria-hidden="true">!</span><p>{{ startErr }}</p></div>
       </div>
 
diff --git a/apps/web/src/pages/ChecklistPage.vue b/apps/web/src/pages/ChecklistPage.vue
index 65a859f..413e79f 100644
--- a/apps/web/src/pages/ChecklistPage.vue
+++ b/apps/web/src/pages/ChecklistPage.vue
@@ -11,7 +11,7 @@ import { unwrap } from "@bid-doctor/api-client";
 import { FileText, Info, Plus, Search } from "@lucide/vue";
 import { useQuery, useQueryClient } from "@tanstack/vue-query";
 import { computed, onBeforeUnmount, onMounted, ref, watch } from "vue";
-import { RouterLink } from "vue-router";
+import { RouterLink, useRoute } from "vue-router";
 import ChecklistItemRow from "@/components/ChecklistItemRow.vue";
 import CitationBlock from "@/components/CitationBlock.vue";
 import ConfirmDialog from "@/components/ConfirmDialog.vue";
@@ -58,13 +58,35 @@ type Cat = "all" | "pending" | "deleted" | ChecklistItem["categories"][number];
 const cat = ref<Cat>("all");
 const kw = ref("");
 const starOnly = ref(false);
+/* 补遗（FR-M2-10）：按来源文件筛选（解析页「核对补遗」带 ?source=<文档>），只看待确认的日期更新 */
+const route = useRoute();
+const source = ref(typeof route.query.source === "string" ? route.query.source : "");
+const supOnly = ref(false);
+const sources = computed(() => {
+  const m = new Map<string, { id: string; label: string; n: number }>();
+  for (const i of formal.value) {
+    const d = i.origin_document;
+    if (!d) continue;
+    const e = m.get(d.id) ?? { id: d.id, label: d.label, n: 0 };
+    e.n++;
+    m.set(d.id, e);
+  }
+  return [...m.values()].sort((a, b) => (a.label === "招标文件" ? -1 : b.label === "招标文件" ? 1 : a.label.localeCompare(b.label, "zh-CN")));
+});
+const addenda = computed(() => sources.value.filter((x) => x.label !== "招标文件"));
+const supPending = (i: ChecklistItem) => !!i.superseded_by && !i.superseded_by.confirmed;
+const supCount = computed(() => formal.value.filter(supPending).length);
 const deletedQ = useDeletedItems(() => props.projectId, () => cat.value === "deleted");
 const deleted = computed(() => deletedQ.data.value ?? []);
 
 const catCount = (c: string) => formal.value.filter((i) => i.categories.includes(c as ChecklistItem["categories"][number])).length;
 const cats = computed(() => CATEGORY_ORDER.filter((c) => catCount(c) > 0));
 
-const match = (i: ChecklistItem) => (!starOnly.value || i.importance === "substantive") && (!kw.value || i.title.includes(kw.value.trim()));
+const match = (i: ChecklistItem) =>
+  (!starOnly.value || i.importance === "substantive") &&
+  (!kw.value || i.title.includes(kw.value.trim())) &&
+  (!source.value || i.origin_document?.id === source.value) &&
+  (!supOnly.value || supPending(i));
 
 /** 「全部」视图下每条只出现一次，放在它的第一个分类里（一条要求可以属于多个分类） */
 const groups = computed(() => {
@@ -79,7 +101,7 @@ const groups = computed(() => {
     .filter((g) => g.rows.length);
 });
 const listMode = computed(() => (cat.value === "pending" || cat.value === "deleted" ? cat.value : "formal"));
-const showTop = computed(() => cat.value === "all" && !kw.value && !starOnly.value);
+const showTop = computed(() => cat.value === "all" && !kw.value && !starOnly.value && !source.value && !supOnly.value);
 const showPending = computed(() => (cat.value === "all" && showTop.value) || cat.value === "pending");
 /** 当前视图里自上而下的条目（J / K 用） */
 const visible = computed<ChecklistItem[]>(() => {
@@ -88,6 +110,19 @@ const visible = computed<ChecklistItem[]>(() => {
   return cat.value === "pending" ? top : [...top, ...groups.value.flatMap((g) => g.rows)];
 });
 
+/** 确认「已被补遗 N 更新」：采用时旧条目删除（可以恢复），保留两条时解除关联（AD3） */
+async function resolveSupersession(i: ChecklistItem, accept: boolean) {
+  try {
+    await unwrap(api.POST("/checklist-items/{item_id}/supersession", { params: { path: { item_id: i.id } }, body: { accept } }));
+    void qc.invalidateQueries({ queryKey: qk.checklistItems(props.projectId) });
+    void qc.invalidateQueries({ queryKey: qk.checklist(props.projectId) });
+    void qc.invalidateQueries({ queryKey: qk.project(props.projectId) });
+    toast(accept ? "已按补遗更新，旧条目已删除（可以在「已删除」里恢复）" : "两条都保留，请自己核对");
+  } catch (e) {
+    toast(errorTitle(e), { ok: false });
+  }
+}
+
 /* ---------- 标注规则（如「打 ★ 的为实质性要求」）和数量核对 ---------- */
 function ruleText(r: MarkingRule): string {
   const mk = r.marker === "keyword" ? `「${r.marker_text ?? ""}」字样` : `「${r.marker_text || MARKER[r.marker]}」`;
@@ -289,11 +324,21 @@ onBeforeUnmount(() => window.removeEventListener("keydown", onKey));
         </template>
       </div>
       <div v-if="cl && !readOnly" class="actions">
+        <RouterLink v-if="tender" class="btn" :to="{ name: 'project-new', query: { project: projectId, addendum: '1' } }"><Plus class="ic" :stroke-width="1.5" />追加补遗</RouterLink>
         <button type="button" class="btn" :disabled="!all.length" @click="openDialog('create')"><Plus class="ic" :stroke-width="1.5" />新增条目</button>
         <button v-if="cl.status !== 'confirmed'" type="button" class="btn primary" :disabled="!formal.length" @click="confirmOpen = true">确认清单</button>
       </div>
     </div>
 
+    <div v-if="addenda.length" class="alert warn warn-row" role="note">
+      <span class="ico w" aria-hidden="true">!</span>
+      <p>
+        {{ addenda.map((x) => `${x.label} 带来 ${x.n} 条`).join("，") }}<template v-if="supCount">，{{ supCount }} 处日期等你确认</template>。标博士不判断哪些旧条目被补遗改了或作废了，请核对：改了的旧条目可以修改或删除。
+      </p>
+      <button v-for="x in addenda" :key="x.id" type="button" class="btn sm" @click="(source = x.id), (cat = 'all')">只看{{ x.label }}</button>
+      <button v-if="supCount" type="button" class="btn sm" @click="(supOnly = true), (cat = 'all')">看日期更新</button>
+    </div>
+
     <div v-if="realLots.length > 1" class="lot-scope" aria-label="清单范围">
       <span class="cap muted">采购包</span>
       <template v-if="lotScope === 'bidding'">
@@ -368,6 +413,11 @@ onBeforeUnmount(() => window.removeEventListener("keydown", onKey));
                 <input v-model="kw" class="input" placeholder="搜索清单" aria-label="搜索清单" />
               </label>
               <label class="choice cap"><input v-model="starOnly" type="checkbox" class="ck" />只看 ★</label>
+              <select v-if="sources.length > 1" v-model="source" class="input sm src" aria-label="来源">
+                <option value="">全部来源</option>
+                <option v-for="x in sources" :key="x.id" :value="x.id">{{ x.label }}（{{ x.n }}）</option>
+              </select>
+              <label v-if="supCount" class="choice cap"><input v-model="supOnly" type="checkbox" class="ck" />只看日期更新（{{ supCount }}）</label>
             </div>
 
             <template v-if="showTop">
@@ -416,6 +466,10 @@ onBeforeUnmount(() => window.removeEventListener("keydown", onKey));
                   @open-citation="(g) => { selId = i.id; openGroup(g); }"
                 >
                   <template #actions>
+                    <template v-if="!readOnly && supPending(i)">
+                      <button type="button" class="btn sm" @click="resolveSupersession(i, true)">确认更新（删除旧条目）</button>
+                      <button type="button" class="btn sm text" @click="resolveSupersession(i, false)">保留两条</button>
+                    </template>
                     <template v-if="!readOnly">
                       <button type="button" class="btn sm" @click="openDialog('edit', i)">修改</button>
                       <button type="button" class="btn sm" @click="startPick(i, 'add')">补出处</button>
@@ -485,6 +539,9 @@ onBeforeUnmount(() => window.removeEventListener("keydown", onKey));
 </template>
 
 <style scoped>
+.lst-tb .src {
+  width: auto;
+}
 .lot-scope {
   display: flex;
   flex-wrap: wrap;
diff --git a/apps/web/src/pages/OverviewPage.vue b/apps/web/src/pages/OverviewPage.vue
index 9e489a9..c832b38 100644
--- a/apps/web/src/pages/OverviewPage.vue
+++ b/apps/web/src/pages/OverviewPage.vue
@@ -3,15 +3,17 @@
  * 项目概览（原型 project.html，PI1）：这一步只做三张卡——项目要点（基本信息字段，带出处，可改、可恢复 AI 值）、
  * 采购包（所投的包和限价）、关键日期（时间线和倒计时，FR-M2-09）。检查记录、文件、AI 摘要卡留到第 6 步。
  * 查标按这里的值核对截止时间、限价、法律体系；改了以后重新检查才生效（PI5）。项目已递交、已归档时只读。
+ * 补遗（FR-M2-10）：招标文件解析后可以追加；补遗带来的新值在这里「采用 / 不采用」（AD3），没确认前查标用旧值（AD4）。
  */
-import type { Schemas } from "@bid-doctor/api-client";
-import { Pencil, X } from "@lucide/vue";
+import { unwrap, type Schemas } from "@bid-doctor/api-client";
+import { Pencil, Plus, X } from "@lucide/vue";
 import { useQueryClient } from "@tanstack/vue-query";
 import { computed, ref } from "vue";
 import { RouterLink } from "vue-router";
 import FieldDialog from "@/components/FieldDialog.vue";
 import PdfViewer, { type ViewerTarget } from "@/components/PdfViewer.vue";
 import ProjectHead from "@/components/ProjectHead.vue";
+import { api, errorTitle } from "@/lib/api";
 import { useCrumbs } from "@/lib/crumbs";
 import { qk } from "@/lib/keys";
 import { deadline, FIELD_LABEL, FIELD_ORDER, fieldText, fmtDateTimeFull, fmtYuan } from "@/lib/labels";
@@ -40,7 +42,9 @@ const rows = computed(() =>
   FIELD_ORDER.map((key) => {
     const f = byKey.value.get(key) ?? null;
     const col = COLUMN[key];
-    const value = f && f.value != null ? f.value : col && p.value ? (p.value[col] as unknown) : null;
+    // 名称：建项目时填的名称优先于 AI 抽到的（解析不覆盖用户填的名称），和项目头一致
+    const value =
+      key === "name" && p.value && f?.source !== "human" ? p.value.name : f && f.value != null ? f.value : col && p.value ? (p.value[col] as unknown) : null;
     return { key, f, value };
   }),
 );
@@ -57,6 +61,24 @@ function onSaved(f: ProjectField, restored: boolean) {
   toast(restored ? `已恢复${FIELD_LABEL[f.key]}的 AI 值` : `已修改${FIELD_LABEL[f.key]}`);
 }
 
+/* ---------- 补遗带来的新值：采用 / 不采用（AD3） ---------- */
+const resolving = ref<string | null>(null);
+async function resolvePending(key: Schemas["ProjectFieldKey"], accept: boolean) {
+  resolving.value = key;
+  try {
+    await unwrap(api.POST("/projects/{project_id}/fields/{field_key}/pending", { params: { path: { project_id: props.projectId, field_key: key } }, body: { accept } }));
+    void qc.invalidateQueries({ queryKey: qk.project(props.projectId) });
+    void qc.invalidateQueries({ queryKey: qk.projects });
+    void qc.invalidateQueries({ queryKey: qk.checklistItems(props.projectId) });
+    toast(accept ? `已采用补遗的${FIELD_LABEL[key]}` : `保留原来的${FIELD_LABEL[key]}`);
+  } catch (e) {
+    toast(errorTitle(e), { ok: false });
+  } finally {
+    resolving.value = null;
+  }
+}
+const canAddendum = computed(() => !!p.value && p.value.status !== "tracking" && !readOnly.value);
+
 const viewer = ref<{ doc: { id: string; label: string }; target: ViewerTarget & { id: string } } | null>(null);
 function openCitation(c: Citation) {
   viewer.value = { doc: { id: c.document_id, label: c.document_label }, target: { id: c.id, page: c.page_no, quads: c.quads, sha: c.normalized_sha256 } };
@@ -70,6 +92,7 @@ function openCitation(c: Citation) {
       <div class="card-h">
         <h2 id="h-facts">项目要点</h2>
         <span class="cap muted r">查标按这里的值核对截止时间、限价和法律体系</span>
+        <RouterLink v-if="canAddendum" class="btn sm" :to="{ name: 'project-new', query: { project: projectId, addendum: '1' } }"><Plus class="ic" :stroke-width="1.5" />追加补遗 / 澄清</RouterLink>
       </div>
       <dl class="facts-list">
         <div v-for="{ key, f, value } in rows" :key="key" class="frow">
@@ -79,9 +102,16 @@ function openCitation(c: Citation) {
             <span v-else class="dash">没写明</span>
             <span v-if="f?.source === 'human'" class="flag box">已修改</span>
             <button v-if="f?.citation" type="button" class="cite-src inline" @click="openCitation(f.citation)">
-              第 <span class="fig">{{ f.citation.page_no }}</span> 页
+              <template v-if="f.citation.document_label && f.citation.document_label !== '招标文件'">{{ f.citation.document_label }} </template>第 <span class="fig">{{ f.citation.page_no }}</span> 页
             </button>
-            <span v-if="f?.pending" class="cap warn-text">补遗带来了新值：{{ fieldText(key, f.pending.value) }}（下一步补遗确认）</span>
+            <span v-if="f?.pending" class="pend-row">
+              <span class="cap warn-text">{{ f.pending.document_label }}：{{ fieldText(key, f.pending.value) }}<template v-if="value != null && value !== ''">（原为 {{ fieldText(key, value) }}）</template>，没确认前查标用原值</span>
+              <button v-if="f.pending.citation" type="button" class="cite-src inline" @click="openCitation(f.pending.citation)">{{ f.pending.document_label }} 第 <span class="fig">{{ f.pending.citation.page_no }}</span> 页</button>
+              <template v-if="!readOnly">
+                <button type="button" class="btn sm" :disabled="resolving === key" @click="resolvePending(key, true)">采用</button>
+                <button type="button" class="btn sm text" :disabled="resolving === key" @click="resolvePending(key, false)">不采用</button>
+              </template>
+            </span>
           </dd>
           <button v-if="!readOnly" type="button" class="icon-btn sm" :aria-label="`修改${FIELD_LABEL[key]}`" @click="edit(key, f ?? { key, value: value as never, source: 'none' })">
             <Pencil class="ic" :stroke-width="1.5" />
@@ -124,6 +154,8 @@ function openCitation(c: Citation) {
               <span class="fig when">{{ fmtDateTimeFull(d.at) }}</span>
               <b>{{ d.label }}</b>
               <span v-if="d.edited" class="flag box">已修改</span>
+              <span v-if="d.superseded_pending" class="cap warn-text">已被补遗更新，待确认</span>
+              <span v-if="d.replaces" class="cap muted rep">已按{{ d.replaces.document_label }} 更新 · 原为 {{ d.replaces.at ? fmtDateTimeFull(d.replaces.at) : "—" }}</span>
               <span v-if="d.due && d.due.cls !== 'due-past'" class="cap" :class="d.due.cls || 'muted'">{{ d.due.main }}</span>
             </li>
           </ol>
@@ -199,6 +231,16 @@ function openCitation(c: Citation) {
 .warn-text {
   color: var(--warn-text);
 }
+.pend-row {
+  display: flex;
+  flex-basis: 100%;
+  flex-wrap: wrap;
+  gap: var(--sp-2);
+  align-items: baseline;
+}
+.timeline .rep {
+  flex-basis: 100%;
+}
 .none,
 .note {
   margin: 0;
diff --git a/apps/web/src/pages/ParsePage.vue b/apps/web/src/pages/ParsePage.vue
index f43768c..a222d88 100644
--- a/apps/web/src/pages/ParsePage.vue
+++ b/apps/web/src/pages/ParsePage.vue
@@ -110,13 +110,15 @@ async function retry() {
 }
 
 const result = computed(() => j.value?.result ?? null);
+/** 补遗 / 澄清（FR-M2-10）：结果按补遗写，下一步去读标页核对这份补遗的条目 */
+const isAddendum = computed(() => !!doc.data.value && doc.data.value.role !== "tender");
 </script>
 
 <template>
   <div class="content narrow">
     <div class="page-title">
       <div>
-        <h1>解析招标文件</h1>
+        <h1>{{ isAddendum ? `解析${doc.data.value?.label}` : "解析招标文件" }}</h1>
         <p v-if="doc.data.value">
           {{ doc.data.value.original_filename }}<template v-if="doc.data.value.page_count"> · <span class="fig">{{ doc.data.value.page_count }}</span> 页</template>
         </p>
@@ -147,7 +149,14 @@ const result = computed(() => j.value?.result ?? null);
                 · 其中 <span class="fig">{{ result.items_pending }}</span> 条没找到可靠出处或把握不大，放在「待确认」里</template>
             </dd>
             <template v-if="result?.items_updated"><dt>更新</dt><dd><span class="fig">{{ result.items_updated }}</span> 条</dd></template>
-            <template v-if="result?.lots_found"><dt>采购包</dt><dd>识别到 <span class="fig">{{ result.lots_found }}</span> 个</dd></template>
+            <template v-if="isAddendum">
+              <dt>日期</dt>
+              <dd v-if="result?.dates_superseded"><span class="fig">{{ result.dates_superseded }}</span> 处日期有新值，旧条目标「已被{{ doc.data.value?.label }} 更新」，等你确认</dd>
+              <dd v-else>没有改动已有的日期</dd>
+              <template v-if="result?.fields_pending"><dt>项目信息</dt><dd><span class="fig">{{ result.fields_pending }}</span> 个字段有新值，在概览里采用或不采用</dd></template>
+              <dt>清单</dt><dd>回到草稿。标博士不判断哪些旧条目被补遗改了或作废了，核对后重新确认</dd>
+            </template>
+            <template v-else-if="result?.lots_found"><dt>采购包</dt><dd>识别到 <span class="fig">{{ result.lots_found }}</span> 个</dd></template>
           </dl>
         </template>
 
@@ -191,7 +200,8 @@ const result = computed(() => j.value?.result ?? null);
         </template>
         <template v-else-if="status === 'succeeded'">
           <!-- 识别到 2 个及以上的包时先选包（FR-M2-04）；只有 1 个包按不分包处理（PI4） -->
-          <RouterLink v-if="(result?.lots_found ?? 0) > 1" class="btn primary" :to="{ name: 'lots', params: { projectId } }">选择要投的包</RouterLink>
+          <RouterLink v-if="isAddendum" class="btn primary" :to="{ name: 'checklist', params: { projectId }, query: { source: doc.data.value?.id } }">核对补遗</RouterLink>
+          <RouterLink v-else-if="(result?.lots_found ?? 0) > 1" class="btn primary" :to="{ name: 'lots', params: { projectId } }">选择要投的包</RouterLink>
           <RouterLink v-else class="btn primary" :to="{ name: 'checklist', params: { projectId } }">查看检查清单</RouterLink>
           <span class="r"><span class="cost">已结算 <span class="fig">1</span> 次解析 · {{ j.finished_at ? fmtDateTime(j.finished_at) : "" }}</span></span>
         </template>
diff --git a/apps/web/src/pages/ProjectNewPage.vue b/apps/web/src/pages/ProjectNewPage.vue
index 4392b4f..64ab67c 100644
--- a/apps/web/src/pages/ProjectNewPage.vue
+++ b/apps/web/src/pages/ProjectNewPage.vue
@@ -4,6 +4,8 @@
  * 选好文件就开始分片上传（格式、加密、页数在上传完成时由服务端拦截，不扣点）；
  * 「开始解析」：建项目 → 把文件挂到项目上 → 发起解析（预扣 1 次，带 expected_charge，API4）。
  * 带 ?project=<id> 时给已有的项目补传招标文件（例如上一次上传失败），不再建新项目。
+ * 再带 &addendum=1 时是追加补遗 / 澄清（FR-M2-10，原型 project-new.html?addendum=1）：不填项目名称，文件类型选补遗或澄清答复，
+ * 单独解析、扣 1 次；新条目标注「补遗 N」并入清单，标博士不判断哪些旧条目已作废，并入后由用户核对。
  */
 import { ApiError, unwrap, uploadFile, type Schemas } from "@bid-doctor/api-client";
 import { Upload, X } from "@lucide/vue";
@@ -30,7 +32,14 @@ const parse = useQuotaAccount("parse");
 
 const projectId = ref(typeof route.query.project === "string" ? route.query.project : "");
 const existing = useProject(() => (route.query.project ? projectId.value : undefined));
-useCrumbs(() => [{ label: "工作台", to: { name: "workbench" } }, { label: existing.data.value ? `${existing.data.value.name} · 上传招标文件` : "新建项目" }]);
+const addendum = computed(() => !!route.query.project && route.query.addendum === "1");
+const role = ref<"addendum" | "clarification">("addendum");
+const docWord = computed(() => (addendum.value ? "补遗 / 澄清文件" : "招标文件"));
+useCrumbs(() =>
+  addendum.value
+    ? [{ label: "工作台", to: { name: "workbench" } }, { label: existing.data.value?.name ?? "项目", to: { name: "overview", params: { projectId: projectId.value } } }, { label: "追加补遗" }]
+    : [{ label: "工作台", to: { name: "workbench" } }, { label: existing.data.value ? `${existing.data.value.name} · 上传招标文件` : "新建项目" }],
+);
 
 const limits = computed(() => plans.data.value?.items.find((p) => p.code === me.data.value?.plan.code)?.limits);
 const name = ref("");
@@ -90,7 +99,7 @@ const startErr = ref("");
 
 async function start() {
   if (up.value.kind !== "done") {
-    fileErr.value = up.value.kind === "uploading" ? "文件还在上传，传完再开始解析" : "请先上传招标文件";
+    fileErr.value = up.value.kind === "uploading" ? "文件还在上传，传完再开始解析" : `请先上传${docWord.value}`;
     return;
   }
   const uploadId = up.value.result.id;
@@ -107,7 +116,7 @@ async function start() {
       const d = await unwrap(
         api.POST("/projects/{project_id}/documents", {
           params: { path: { project_id: projectId.value } },
-          body: { upload_id: uploadId, role: "tender" },
+          body: { upload_id: uploadId, role: addendum.value ? role.value : "tender" },
         }),
       );
       documentId.value = d.id;
@@ -139,8 +148,9 @@ async function start() {
   <div class="content narrow">
     <div class="page-title">
       <div>
-        <h1>{{ existing.data.value ? "上传招标文件" : "新建项目" }}</h1>
-        <p>上传招标文件，标博士会逐条提取要求，每一条都带原文出处。</p>
+        <h1>{{ addendum ? "追加补遗 / 澄清" : existing.data.value ? "上传招标文件" : "新建项目" }}</h1>
+        <p v-if="addendum">补遗单独解析，新条目标注「补遗 N」并入清单，日期和项目信息的新值等你确认。标博士不判断哪些旧条目已作废，并入后由你核对。</p>
+        <p v-else>上传招标文件，标博士会逐条提取要求，每一条都带原文出处。</p>
       </div>
     </div>
 
@@ -156,9 +166,16 @@ async function start() {
           <label>项目</label>
           <span>{{ existing.data.value.name }}</span>
         </div>
+        <div v-if="addendum" class="field">
+          <label>文件类型</label>
+          <div class="seg" role="group" aria-label="文件类型">
+            <button type="button" :aria-pressed="role === 'addendum'" :disabled="busy" @click="role = 'addendum'">补遗 / 更正公告</button>
+            <button type="button" :aria-pressed="role === 'clarification'" :disabled="busy" @click="role = 'clarification'">澄清答复</button>
+          </div>
+        </div>
 
         <div class="field" :class="{ err: fileErr }">
-          <label id="l-file">招标文件</label>
+          <label id="l-file">{{ docWord }}</label>
           <div
             v-if="!fileOf"
             class="drop"
@@ -216,7 +233,7 @@ async function start() {
       <div class="card-f">
         <!-- 红线 9：扣点规则写在按钮旁边 -->
         <span class="cost">将扣 <span class="fig">1</span> 次解析；解析失败、超时或取消不扣点<template v-if="parse"> · 剩 <span class="fig">{{ parse.balance }}</span> 次</template></span>
-        <RouterLink class="btn" :to="{ name: 'workbench' }">取消</RouterLink>
+        <RouterLink class="btn" :to="addendum ? { name: 'overview', params: { projectId } } : { name: 'workbench' }">取消</RouterLink>
         <button type="submit" class="btn primary swap" :class="{ 'is-loading': busy }" :aria-busy="busy" :disabled="busy || up.kind !== 'done'">
           <span class="idle">开始解析</span><span class="busy">正在提交…</span>
         </button>
diff --git a/docs/architecture/addendum-plan.md b/docs/architecture/addendum-plan.md
new file mode 100644
index 0000000..4aacefd
--- /dev/null
+++ b/docs/architecture/addendum-plan.md
@@ -0,0 +1,98 @@
+# 补遗追加实现方案 v0.1（2026-11-05）
+
+> 范围：FR-M2-10 补遗追加（简化版）：追加的补遗 / 澄清文件单独解析、扣 1 次解析，新条目标注来源并入清单；日期类字段以最新文件为准，在旧值上标「已被补遗 N 更新」，由用户确认；不自动判断条目「新增 / 变更 / 作废」（P1）。
+> 依据：`03-functional-requirements.md`、`02-user-journeys.md` J2 第 1 步、`01-scope-roles.md`（「追加解析 + 来源标注」，影响分析是 P1）、`data-model.md` §5.2「补遗」、`openapi.yaml`（`/projects/{id}/fields/{key}/pending`、`/checklist-items/{id}/supersession`）、原型 `project-new.html?addendum=1` `parsing.html?addendum=1` `checklist.html` `project.html` 的关键日期卡。
+> 状态：AD1–AD6 已全部按建议确认（2026-11-05，`docs/decisions.md`）。
+
+## 0. 结论速览
+
+- **一半已经有了**：后端上传时可以选补遗 / 澄清（编号「补遗 N」「澄清 N」），能单独解析、扣 1 次解析、失败退回；新条目记着来自哪份文件；项目字段的新值和旧值不同时先放进待确认（`pending_value`），不覆盖。
+- **缺的**：日期类条目的「已被补遗 N 更新」关联；两个确认接口（字段新值、日期条目）；并入后清单回到草稿；前端的追加入口、解析结果、确认界面、来源筛选。
+- **按 FR 只做日期类的自动关联**。原型里「★ 参数原为 480G、补遗改成 960G」那种逐条对照属于「变更判断」，是 P1，这次不做（AD2）。
+- **补遗的新条目直接进正式清单**，和招标文件的新旧条目都查：宁可多报，不漏报（AD1）。
+- **没有补遗样本**：10 份样本里一份都没有。这次用虚构的更正公告测链路；国动项目如果有更正公告，请一起给我，这是第一份真实补遗。
+
+## 1. 现状
+
+| 环节 | 现在 | 要补的 |
+|---|---|---|
+| 上传、编号 | `role = addendum / clarification`，各自从 1 编号 | 前端入口 |
+| 解析、扣点 | 和招标文件同一条流水线，扣 1 次解析，失败、超时、取消退回 | 解析结果页按补遗写（新增几条、哪些日期有新值） |
+| 清单项来源 | `origin_document_id` 指向补遗；但接口的 `origin_label` 只有「AI」「人工添加」 | `origin_label` 对补遗来的条目写「补遗 1」；读标页按来源筛选；并入后清单回到草稿 |
+| 项目字段 | 新值和旧值不同 → `pending_value`，等确认 | 确认接口和界面；确认后同步冗余列 |
+| 日期类条目 | 没有关联（`superseded_by_id` 列已建，没写） | 并入时关联、确认接口、界面 |
+| 分包 | 补遗不改已有的分包 | 不变 |
+
+## 2. 并入时做什么（后端）
+
+补遗解析完、并入清单时，在现有的 `checklist.merge` 之后多做三件事：
+
+1. **新条目照常进清单**：和招标文件一样按校验结果进正式清单或待确认区，标「补遗 N」。
+2. **关联日期类条目**：补遗里每条有具体时间的「日期与递交」条目（投标截止、开标、提疑截止、保证金截止、投标有效期），在更早的文件（招标文件、编号更小的补遗）里找同一种日期、还在正式清单里的条目，时间不同的把旧条目的 `superseded_by_id` 指向新条目，等用户确认。时间相同的不关联（补遗只是复述）。
+3. **清单回到草稿**：已确认的清单改为草稿，历史版本保留，要求重新确认（原型：「补遗 1 并入后待重新确认」）。
+
+解析任务的结果里加：`items_added`（新增几条）、`dates_superseded`（几处日期有新值）、`fields_pending`（几个项目字段有新值），解析页按这三个数写。
+
+## 3. 确认（后端）
+
+按契约实现两个接口：
+
+- **`POST /projects/{id}/fields/{key}/pending`**（`accept: true / false`）：
+  - 采用：补遗的值变成 AI 值（出处换成补遗那一句），**清掉人工值**（以补遗为准；用户之后还可以再改），冗余列同步；
+  - 不采用：丢掉待确认值，保持原值；
+  - 采用投标截止时间时，清单里「投标截止」日期条目的更新一起确认（AD3），不用在读标页再点一次；
+  - 都写审计（`project_field.resolve_pending`）。
+- **`POST /checklist-items/{id}/supersession`**（`accept: true / false`，对旧条目调用）：
+  - 采用：旧条目软删除（可以恢复），新条目保留；
+  - 保留两条：解除关联，两条都在，由用户自己处理；
+  - 都写审计（`checklist_item.resolve_supersession`）。
+
+接口返回里补上已有字段：清单项的 `superseded_by`（新条目编号、来自哪份补遗）、清单概况的 `superseded_pending`（还有几处没确认）、关键日期的 `superseded_pending`。
+
+**没确认之前查标用旧值**（AD4）：项目字段的契约就是「确认后才生效」（`data-model.md` §5.2）。检查预览提示「补遗 1 带来的新值还有 N 处没确认」，不阻止发起检查（红线 4）。确认后截止时间变了，已有的检查结果按 PI5 提示重新检查。
+
+## 4. 前端
+
+- **追加入口**：概览页右上角和读标页清单栏各放一个「追加补遗 / 澄清」，进新建项目页的补遗模式（原型 `project-new.html?addendum=1`）。补遗模式下不填项目名称，文件类型选补遗或澄清答复，说明写「补遗单独解析，新条目标注『补遗 N』并入清单。标博士不判断哪些旧条目已作废，并入后由你核对」，按钮旁写扣 1 次解析。招标文件还没解析完时不显示入口（AD5）。
+- **解析页**：标题「解析补遗 1」；完成后写「新增 N 条 · M 处日期有新值 · K 个项目字段有新值 · 清单回到草稿，核对后重新确认」，下一步「核对补遗」进读标页、只看这份补遗的条目。
+- **概览页**：
+  - 项目要点里有待确认值的字段写「补遗 1：新值 → 原值」，带出处，给「采用 / 不采用」；
+  - 关键日期卡：被更新、还没确认的日期显示「已被补遗 1 更新，待确认」；确认后显示新值并注「已按补遗 1 更新 · 原为 11月18日 09:30」（原型 `project.html`）。
+- **读标页**：
+  - 来源筛选：全部 / 招标文件 / 补遗 1 / ……，每项带条数；
+  - 被更新的日期条目写「已被补遗 1 更新：新值 ……」，给「确认更新（删除旧条目）」和「保留两条」；
+  - 并入后顶部提示「补遗 1 新增 N 条。标博士不判断哪些旧条目被它改了或作废了，请核对：改了的旧条目可以修改或删除」，带「只看补遗 1」。
+- **查标页**：检查预览里有没确认的新值时出上面那条提示。
+
+## 5. 测试
+
+- 虚构一份更正公告样例（`server/tests/fixtures/addendum-mini.pdf`，内容全虚构）：改投标截止时间、开标时间，新增一条 ★ 参数，复述一条没改的日期。
+- 集成测试：追加 → 解析 → 扣 1 次 → 新条目标「补遗 1」、清单回到草稿、截止时间进待确认、日期条目关联（复述的不关联）；字段采用 / 不采用；采用截止时间时日期条目一起确认；日期条目采用（旧条目软删除、可以恢复）/ 保留两条；检查预览的提示；只读项目 409。
+- 假模型能不能从样例里抽出日期要看它的规则；抽不出时测试里用接口建条目。浏览器里走一遍追加到确认的全程。
+- 用真实模型对这份虚构样例跑一次解析看看抽取结果，花费几分钱（AD6）。
+
+## 6. 工作量和顺序
+
+1. 后端：并入时关联日期、清单回到草稿、两个确认接口、接口字段补齐、检查预览提示，以及测试样例和测试。约半天。
+2. 前端：补遗模式的上传页、解析页的补遗结果、概览页的确认、读标页的来源筛选和日期确认。约半天。
+
+## 7. 待确认事项
+
+| 编号 | 事项 | 建议 |
+|---|---|---|
+| AD1 | 补遗的新条目进正式清单还是待确认区 | **按招标文件同一套规则进正式清单**（没出处、校验没过的照样进待确认区），标「补遗 N」，读标页给「只看补遗 N」和核对提示，清单回到草稿要求重新确认。新旧条目都在、都查，宁可多报，不漏报；全放待确认区的话，用户不逐条采纳就查不到补遗的新要求 |
+| AD2 | 哪些条目自动标「已被补遗更新」 | **只做日期类**（同一种日期、时间不同），按 FR。原型里参数类「原为 480G → 现为 960G」的逐条对照是变更判断，P1；先等真实补遗样本看写法 |
+| AD3 | 怎么确认 | **字段在概览页逐个「采用 / 不采用」，日期条目在读标页逐条确认**；采用投标截止时间时清单里的「投标截止」条目一起确认。采用时清掉人工值，以补遗为准 |
+| AD4 | 没确认之前查标用哪个值 | **旧值**，确认后生效（数据模型原定）；检查预览提示还有几处没确认，不阻止检查 |
+| AD5 | 招标文件没解析完能不能追加补遗 | **不能**，界面上招标文件解析成功后才显示入口。没有招标文件时补遗的日期没有可关联的旧值 |
+| AD6 | 用真实模型对虚构样例跑一次解析 | **跑一次**（DeepSeek，几分钱），看抽取对补遗写法（「原为……现更正为……」）的表现；结果只记录，这次不按它调提示词 |
+
+## 8. 落地记录（2026-11-05）
+
+- 后端：`checklist/addendum.py`（并入时关联日期条目、确认 / 保留两条、采用截止时间时一起确认「投标截止」条目）；`project/edit.resolve_pending`（采用时补遗的值变成 AI 值、出处换成补遗那一句、清掉人工值）；清单项接口补 `origin_document`、`superseded_by`，`origin_label` 对补遗来的条目写「补遗 N」；清单概况 `superseded_pending`；关键日期 `replaces`（「已按补遗 1 更新 · 原为……」）；解析结果 `dates_superseded`、`fields_pending`；检查预览 `pending_updates`。
+- **补遗不改项目是谁**：解析补遗时项目名称、编号、采购人、代理机构、法律体系不进待确认。测试里发现，更正公告的标题会被抽成「项目名称」，和招标文件的不同，每份补遗都会冒出一条没意义的待确认。
+- **时间比较按北京时间补时区**：模型给的时间有时带时区、有时不带，补遗复述原时间时不能误判成「有新值」。
+- ORM 给 JSONB 列写 `None` 存的是 JSON null，不是 SQL NULL，SQL 里数待确认值时要排除 JSON null。
+- 前端：补遗模式的上传页（选补遗 / 澄清答复）、解析页的补遗结果和「核对补遗」、概览页「追加补遗 / 澄清」和字段「采用 / 不采用」、关键日期的待确认和「已按补遗 1 更新」、读标页的来源筛选、核对提示、「只看日期更新」和逐条确认、条目上的「补遗 1」标签、检查预览的提示。
+- **AD6 结果**：用 DeepSeek Flash 对虚构的更正公告（推后递交截止时间、新增一条 ★ 参数）跑了一次解析（6 次调用）：两处改动都抽对了，★ 参数归为技术参数 + 无效条款、新截止时间 12 月 8 日，出处都是「补遗 1 · 第 1 页」，没有多抽。只是一份很规整的虚构样例，「原为……现更正为……」那种写法这份样例里没有，真实补遗到了再看。
+- 浏览器里走过：追加补遗 → 解析结果 → 概览采用新截止时间（项目头、要点、关键日期一起变，旧的「投标截止」条目自动删除）→ 读标页只看补遗 1。
diff --git a/docs/architecture/api-design.md b/docs/architecture/api-design.md
index 17276e7..a396e2b 100644
--- a/docs/architecture/api-design.md
+++ b/docs/architecture/api-design.md
@@ -188,9 +188,9 @@
 |---|---|---|
 | 登录与账号 | 发验证码、注册、登录（含挤下线确认）、退出、`GET /me` | 修改显示名、在线会话列表和下线、注销账号 |
 | 额度与套餐 | `GET /plans`、`GET /quota` | 额度流水、开通申请 |
-| 项目 | 列表（不含筛选和分页）、新建、详情（含解析出的基本信息字段和关键日期）、状态变更、基本信息字段修改、分包的增删改、「不分包」和选包 | 补遗确认、删除 |
+| 项目 | 列表（不含筛选和分页）、新建、详情（含解析出的基本信息字段和关键日期）、状态变更、基本信息字段修改、补遗新值的采用 / 不采用、分包的增删改、「不分包」和选包 | 删除 |
 | 上传与文档 | 分片上传全套、挂到项目、文档列表和详情、逐页摘要、一页的句子、签名下载、发起解析、解析进度、取消、人工建出处 | 删除文档 |
-| 清单 | 清单概况（含确认人、删除数、按类别计数）、清单项列表（按区域、类别、所投的包筛选，可含已删除）、清单项详情（ETag）、修改（If-Match 选填）、采纳、删除恢复、人工新增、替换出处、修改记录、确认清单、版本 | 补遗更新确认（等补遗解析） |
+| 清单 | 清单概况（含确认人、删除数、按类别计数）、清单项列表（按区域、类别、所投的包筛选，可含已删除）、清单项详情（ETag）、修改（If-Match 选填）、采纳、删除恢复、人工新增、替换出处、修改记录、确认清单、版本、「已被补遗 N 更新」的确认 | — |
 | 检查 | 检查预览、发起、进度、取消、检查记录、问题列表（含本次已解决）、每条清单项的检查结论（C9，2026-11-04 新增）、处理、撤销、批量处理（只限提示级）；投标分册类型和版本、电子投标平台加密格式识别 | 需人工核对（第 2 步） |
 | 报告、资质 | 报告：导出、生成进度、历次报告、签名下载（第 5 步）；资质库：增删改、按类型 / 关键词筛选、附件（上传后挂上、签名下载、删除）、`late_for` 到期提醒（第 4 步） | — |
 | 通知与事件 | 事件流（含检查进度）、通知列表、反馈 | 标为已读 |
diff --git a/docs/architecture/openapi.yaml b/docs/architecture/openapi.yaml
index f3354ce..19b690c 100644
--- a/docs/architecture/openapi.yaml
+++ b/docs/architecture/openapi.yaml
@@ -2260,6 +2260,13 @@ components:
                   kind: { type: string, enum: [question_deadline, bid_deadline, opening, deposit_deadline, validity, other] }
                   at: { $ref: '#/components/schemas/Timestamp' }
                   edited: { type: boolean, description: 人工改过（投标截止时间按项目字段的人工值显示） }
+                  replaces:
+                    type: [object, 'null']
+                    description: 已按补遗确认更新：原来的时间和带来新值的文件（「已按补遗 1 更新 · 原为……」）
+                    required: [at, document_label]
+                    properties:
+                      at: { type: string }
+                      document_label: { type: string }
                   superseded_pending: { type: boolean, description: 补遗带来了新值、等用户确认 }
             latest_check_run_id:
               oneOf:
@@ -2514,6 +2521,8 @@ components:
             items_pending: { type: integer }
             items_absent: { type: integer, description: 重新解析时没再出现的旧条目 }
             lots_found: { type: integer }
+            dates_superseded: { type: integer, description: 补遗：更早文件里有几条日期条目被标「已被补遗 N 更新」（FR-M2-10） }
+            fields_pending: { type: integer, description: 补遗：项目字段里有几个新值等确认 }
             verify_failures:
               type: object
               description: 没通过校验的原因码和条数（如 quote_too_short、value_unverified），评测和排查用
@@ -2691,6 +2700,13 @@ components:
             lot_no: { type: [string, 'null'], description: 空表示各包通用 }
             origin: { $ref: '#/components/schemas/Origin' }
             origin_label: { type: string, description: '如「AI」「人工添加」「补遗 1」' }
+            origin_document:
+              type: [object, 'null']
+              description: 来自哪份招标侧文件（招标文件、补遗 N、澄清 N）；人工添加的为 null
+              required: [id, label]
+              properties:
+                id: { $ref: '#/components/schemas/Id' }
+                label: { type: string }
             zone: { $ref: '#/components/schemas/Zone' }
             pending_reason:
               oneOf:
@@ -2772,6 +2788,7 @@ components:
           description: 24 小时免扣窗口的结束时间（从上一次扣点的检查算起，P1）
         checklist_confirmed: { type: boolean, description: 为 false 时提示「清单未确认，检查结果以当前清单为准」 }
         pending_item_count: { type: integer, description: 待确认区条目不参与检查 }
+        pending_updates: { type: integer, description: 补遗带来的新值、日期更新还没确认的处数；查标用旧值（AD4），只提示、不阻止 }
         bid_documents:
           type: array
           description: 默认用每个分册的最新版本
diff --git a/docs/decisions.md b/docs/decisions.md
index 1fa5d66..4720ac3 100644
--- a/docs/decisions.md
+++ b/docs/decisions.md
@@ -4,6 +4,19 @@
 
 ---
 
+## AD1–AD6 · 2026-11-05 · 补遗追加：全部按建议
+
+依据 `docs/architecture/addendum-plan.md` §7。
+
+| # | 决策 | 理由 |
+|---|---|---|
+| AD1 | 补遗的新条目按招标文件同一套规则进正式清单（没出处、校验没过的进待确认区），标「补遗 N」；并入后清单回到草稿，要求重新确认 | 新旧条目都查，宁可多报，不漏报；全放待确认区的话，不逐条采纳就查不到补遗的新要求 |
+| AD2 | 只对日期类条目自动标「已被补遗 N 更新」（同一种日期、时间不同）；参数等条目的逐条对照是变更判断，P1 | 按 FR-M2-10；没有补遗样本，先看真实写法 |
+| AD3 | 字段的新值在概览页逐个「采用 / 不采用」，日期条目在读标页逐条确认；采用投标截止时间时清单里的「投标截止」条目一起确认；采用时清掉人工值，以补遗为准 | 截止时间两处一次确认；补遗是更新的正式文件 |
+| AD4 | 没确认之前查标用旧值，确认后生效；检查预览提示还有几处没确认，不阻止检查 | 数据模型原定「确认后生效」；不阻断用户（红线 4） |
+| AD5 | 招标文件解析成功后才显示追加补遗的入口 | 没有招标文件时补遗的日期没有可关联的旧值 |
+| AD6 | 用真实模型对虚构的更正公告样例跑一次解析，结果只记录，这次不调提示词 | 看抽取对「原为……现更正为……」写法的表现，花费几分钱 |
+
 ## PI1–PI7 · 2026-11-04 · 项目基本信息修改和分包选择：全部按建议
 
 依据 `docs/architecture/project-info-plan.md` §8。
diff --git a/packages/api-client/src/schema.d.ts b/packages/api-client/src/schema.d.ts
index 08bfa5a..8de6ccc 100644
--- a/packages/api-client/src/schema.d.ts
+++ b/packages/api-client/src/schema.d.ts
@@ -1634,6 +1634,11 @@ export interface components {
                 at: components["schemas"]["Timestamp"];
                 /** @description 人工改过（投标截止时间按项目字段的人工值显示） */
                 edited?: boolean;
+                /** @description 已按补遗确认更新：原来的时间和带来新值的文件（「已按补遗 1 更新 · 原为……」） */
+                replaces?: {
+                    at: string;
+                    document_label: string;
+                } | null;
                 /** @description 补遗带来了新值、等用户确认 */
                 superseded_pending?: boolean;
             }[];
@@ -1813,6 +1818,10 @@ export interface components {
                 /** @description 重新解析时没再出现的旧条目 */
                 items_absent?: number;
                 lots_found?: number;
+                /** @description 补遗：更早文件里有几条日期条目被标「已被补遗 N 更新」（FR-M2-10） */
+                dates_superseded?: number;
+                /** @description 补遗：项目字段里有几个新值等确认 */
+                fields_pending?: number;
                 /** @description 没通过校验的原因码和条数（如 quote_too_short、value_unverified），评测和排查用 */
                 verify_failures?: {
                     [key: string]: number;
@@ -1947,6 +1956,11 @@ export interface components {
             origin: components["schemas"]["Origin"];
             /** @description 如「AI」「人工添加」「补遗 1」 */
             origin_label?: string;
+            /** @description 来自哪份招标侧文件（招标文件、补遗 N、澄清 N）；人工添加的为 null */
+            origin_document?: {
+                id: components["schemas"]["Id"];
+                label: string;
+            } | null;
             zone: components["schemas"]["Zone"];
             pending_reason?: components["schemas"]["PendingReason"] | null;
             /** @description 人工确认、无出处 */
@@ -2002,6 +2016,8 @@ export interface components {
             checklist_confirmed: boolean;
             /** @description 待确认区条目不参与检查 */
             pending_item_count?: number;
+            /** @description 补遗带来的新值、日期更新还没确认的处数；查标用旧值（AD4），只提示、不阻止 */
+            pending_updates?: number;
             /** @description 默认用每个分册的最新版本 */
             bid_documents: components["schemas"]["Document"][];
             lot_ids: components["schemas"]["Id"][];
diff --git a/server/src/bid_doctor/check/service.py b/server/src/bid_doctor/check/service.py
index c84aee8..49e3dae 100644
--- a/server/src/bid_doctor/check/service.py
+++ b/server/src/bid_doctor/check/service.py
@@ -116,6 +116,9 @@ async def preview(s: AsyncSession, ctx: TenantContext, project_id: UUID) -> dict
         "waive_until": mode.waive_until,
         "checklist_confirmed": states.get(project_id) == "confirmed",
         "pending_item_count": (await checklist.pending_counts(s, [project_id])).get(project_id, 0),
+        # 补遗带来的新值、日期更新还没确认：查标用旧值（AD4），预览里提示，不阻止检查
+        "pending_updates": await projects.pending_field_count(s, project_id)
+        + await checklist.superseded_pending(s, project_id),
         "bid_documents": [await documents.doc_to_api(s, d) for d in bids],
         "lot_ids": await projects.bidding_lot_ids(s, project_id),
     }
diff --git a/server/src/bid_doctor/checklist/addendum.py b/server/src/bid_doctor/checklist/addendum.py
new file mode 100644
index 0000000..9210e89
--- /dev/null
+++ b/server/src/bid_doctor/checklist/addendum.py
@@ -0,0 +1,141 @@
+"""补遗追加（FR-M2-10，addendum-plan §2、§3）：日期类条目的「已被补遗 N 更新」和确认。
+
+- 只关联日期类（AD2）：补遗里有具体时间的「日期与递交」条目，在更早的文件里找同一种日期、还在正式清单里的条目，
+  时间不同的把旧条目的 superseded_by_id 指向新条目，等用户确认；时间相同的是复述，不关联；
+- 确认：采用 → 旧条目软删除（可以恢复），新条目保留；保留两条 → 解除关联，由用户自己处理；
+- 参数等条目的「原为……现为……」逐条对照是变更判断，P1，这里不做。
+"""
+
+from __future__ import annotations
+
+from datetime import UTC, datetime
+from typing import Any
+from uuid import UUID
+from zoneinfo import ZoneInfo
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from bid_doctor.audit import service as audit
+from bid_doctor.checklist import edit, service
+from bid_doctor.checklist.models import ChecklistItem
+from bid_doctor.core.db import TenantContext
+from bid_doctor.core.errors import AppError
+from bid_doctor.document.models import SourceDocument
+
+DATE_KINDS = (
+    "bid_deadline",
+    "opening",
+    "question_deadline",
+    "deposit_deadline",
+    "validity",
+)  # 「其他日期」对不上，不关联
+TENDER_ROLES = ("tender", "addendum", "clarification")
+LOCAL_TZ = ZoneInfo("Asia/Shanghai")
+
+
+def _when(item: ChecklistItem) -> tuple[str | None, str | None]:
+    sched = (item.spec or {}).get("schedule") or {}
+    return sched.get("date_kind"), sched.get("at")
+
+
+def _same_time(a: str, b: str) -> bool:
+    """同一时刻（不带时区的按北京时间算，模型有时给有时不给）。"""
+    try:
+        x, y = datetime.fromisoformat(a), datetime.fromisoformat(b)
+    except ValueError:
+        return a == b
+    return x.replace(tzinfo=x.tzinfo or LOCAL_TZ) == y.replace(tzinfo=y.tzinfo or LOCAL_TZ)
+
+
+async def link_dates(s: AsyncSession, doc: SourceDocument) -> int:
+    """补遗并入清单后：把更早文件里同一种日期、时间不同的旧条目标成「已被这份补遗更新」。返回关联了几条。"""
+    if doc.role not in ("addendum", "clarification"):
+        return 0
+    earlier = {
+        d.id
+        for d in (
+            await s.execute(
+                select(SourceDocument).where(
+                    SourceDocument.project_id == doc.project_id,
+                    SourceDocument.role.in_(TENDER_ROLES),
+                    SourceDocument.id != doc.id,
+                    SourceDocument.created_at < doc.created_at,
+                )
+            )
+        ).scalars()
+    }
+    live = (
+        (
+            await s.execute(
+                select(ChecklistItem).where(
+                    ChecklistItem.project_id == doc.project_id,
+                    ChecklistItem.zone == "formal",
+                    ChecklistItem.deleted_at.is_(None),
+                    ChecklistItem.categories.contains(["schedule"]),
+                )
+            )
+        )
+        .scalars()
+        .all()
+    )
+    new = [i for i in live if i.origin_document_id == doc.id and _when(i)[0] in DATE_KINDS and _when(i)[1]]
+    old = [i for i in live if i.origin_document_id in earlier and i.superseded_by_id is None]
+    n = 0
+    for item in new:
+        kind, at = _when(item)
+        for o in old:
+            o_kind, o_at = _when(o)
+            if o_kind == kind and o_at and at and not _same_time(o_at, at):
+                o.superseded_by_id = item.id
+                n += 1
+    await s.flush()
+    return n
+
+
+async def resolve(s: AsyncSession, ctx: TenantContext, item_id: UUID, accept: bool) -> dict[str, Any]:
+    """对旧条目确认「已被补遗 N 更新」：采用时旧条目软删除，保留两条时解除关联（契约 resolveSupersession）。"""
+    item = await service.load(s, item_id)
+    await edit.editable(s, ctx, item.project_id)  # 只读项目 409
+    if item.superseded_by_id is None or item.deleted_at is not None:
+        raise AppError("not_superseded")
+    new_id = item.superseded_by_id
+    if accept:
+        item.deleted_at, item.deleted_by = datetime.now(UTC), ctx.user_id
+        await edit.reopen(s, item.project_id)
+    else:
+        item.superseded_by_id = None
+    await audit.record(
+        s,
+        ctx,
+        "checklist_item.resolve_supersession",
+        "checklist_item",
+        item.id,
+        project_id=item.project_id,
+        after={"accept": accept, "superseded_by": str(new_id)},
+    )
+    await s.flush()
+    return await service.item(s, item.id)
+
+
+async def accept_kind(s: AsyncSession, ctx: TenantContext, project_id: UUID, kind: str) -> int:
+    """采用补遗的投标截止时间时，清单里同一种日期的更新一起确认（AD3）。返回确认了几条。"""
+    rows = (
+        (
+            await s.execute(
+                select(ChecklistItem).where(
+                    ChecklistItem.project_id == project_id,
+                    ChecklistItem.superseded_by_id.is_not(None),
+                    ChecklistItem.deleted_at.is_(None),
+                )
+            )
+        )
+        .scalars()
+        .all()
+    )
+    n = 0
+    for r in rows:
+        if _when(r)[0] == kind:
+            await resolve(s, ctx, r.id, True)
+            n += 1
+    return n
diff --git a/server/src/bid_doctor/checklist/api.py b/server/src/bid_doctor/checklist/api.py
index cc70e09..c8cad43 100644
--- a/server/src/bid_doctor/checklist/api.py
+++ b/server/src/bid_doctor/checklist/api.py
@@ -6,7 +6,7 @@ from uuid import UUID
 from fastapi import APIRouter, Header, Response
 from pydantic import BaseModel, ConfigDict, Field
 
-from bid_doctor.checklist import edit, response_mode, service
+from bid_doctor.checklist import addendum, edit, response_mode, service
 from bid_doctor.core.db import tenant_tx
 from bid_doctor.identity.deps import Ctx
 from bid_doctor.project import service as projects
@@ -75,6 +75,17 @@ async def list_items(
         return {"items": shown, "hidden_count": len(rows) - len(shown)}
 
 
+class SupersessionIn(BaseModel):
+    accept: bool
+
+
+@router.post("/checklist-items/{item_id}/supersession")
+async def resolve_supersession(item_id: UUID, body: SupersessionIn, ctx: Ctx) -> dict[str, Any]:
+    """对旧条目确认「已被补遗 N 更新」：采用时旧条目软删除，保留两条时解除关联（FR-M2-10）。"""
+    async with tenant_tx(ctx) as s:
+        return await addendum.resolve(s, ctx, item_id, body.accept)
+
+
 @router.post("/projects/{project_id}/checklist/items", status_code=201)
 async def create_item(project_id: UUID, body: ItemCreate, ctx: Ctx) -> dict[str, Any]:
     values = body.changes()
diff --git a/server/src/bid_doctor/checklist/edit.py b/server/src/bid_doctor/checklist/edit.py
index 47e0767..c8d63eb 100644
--- a/server/src/bid_doctor/checklist/edit.py
+++ b/server/src/bid_doctor/checklist/edit.py
@@ -41,11 +41,11 @@ def _json(v: Any) -> Any:
     return str(v) if isinstance(v, UUID) else v
 
 
-async def _editable(s: AsyncSession, ctx: TenantContext, project_id: UUID) -> None:
+async def editable(s: AsyncSession, ctx: TenantContext, project_id: UUID) -> None:
     projects.ensure_editable(await projects.get(s, ctx, project_id))
 
 
-async def _reopen(s: AsyncSession, project_id: UUID) -> None:
+async def reopen(s: AsyncSession, project_id: UUID) -> None:
     """正式清单有变化：已确认的清单回到草稿（FR-M2-08）。"""
     cl = (await s.execute(select(Checklist).where(Checklist.project_id == project_id))).scalar_one()
     if cl.status == "confirmed":
@@ -170,7 +170,7 @@ async def update(
     s: AsyncSession, ctx: TenantContext, item_id: UUID, changes: dict[str, Any], if_match: str | None
 ) -> dict[str, Any]:
     item = await service.load(s, item_id)
-    await _editable(s, ctx, item.project_id)
+    await editable(s, ctx, item.project_id)
     if if_match and if_match.removeprefix("W/") != service.etag(item):
         raise AppError("precondition_failed")
     if item.deleted_at is not None:
@@ -189,7 +189,7 @@ async def update(
             after=after,
         )
         if item.zone == "formal":
-            await _reopen(s, item.project_id)
+            await reopen(s, item.project_id)
     return await _done(s, item)
 
 
@@ -203,7 +203,7 @@ async def accept(
 ) -> dict[str, Any]:
     """从待确认区采纳（FR-M2-07）：要么有出处，要么声明「人工确认、无出处」（红线 2）；可以同时修改字段。"""
     item = await service.load(s, item_id)
-    await _editable(s, ctx, item.project_id)
+    await editable(s, ctx, item.project_id)
     if item.zone != "pending" or item.deleted_at is not None:
         raise AppError("item_not_pending")
     before, after = _apply(item, await _check(s, item.project_id, changes))
@@ -231,13 +231,13 @@ async def accept(
         before=before,
         after=after,
     )
-    await _reopen(s, item.project_id)
+    await reopen(s, item.project_id)
     return await _done(s, item)
 
 
 async def set_citations(s: AsyncSession, ctx: TenantContext, item_id: UUID, citation_ids: list[UUID]) -> dict[str, Any]:
     item = await service.load(s, item_id)
-    await _editable(s, ctx, item.project_id)
+    await editable(s, ctx, item.project_id)
     if not citation_ids and item.zone == "formal" and item.origin != "human" and item.no_citation_ack_by is None:
         raise AppError("citation_required")  # 正式清单里的 AI 条目不能没有出处（红线 2）
     old = await _set_citations(s, item, citation_ids)
@@ -255,14 +255,14 @@ async def set_citations(s: AsyncSession, ctx: TenantContext, item_id: UUID, cita
         after={"citation_ids": [str(c) for c in dict.fromkeys(citation_ids)]},
     )
     if item.zone == "formal":
-        await _reopen(s, item.project_id)
+        await reopen(s, item.project_id)
     return await _done(s, item)
 
 
 async def remove(s: AsyncSession, ctx: TenantContext, item_id: UUID) -> None:
     """软删除；待确认区的条目删除就是「丢弃」。删除的条目可以恢复，重新解析也不会再冒出来。"""
     item = await service.load(s, item_id)
-    await _editable(s, ctx, item.project_id)
+    await editable(s, ctx, item.project_id)
     if item.deleted_at is not None:
         return
     item.deleted_at, item.deleted_by = datetime.now(UTC), ctx.user_id
@@ -271,12 +271,12 @@ async def remove(s: AsyncSession, ctx: TenantContext, item_id: UUID) -> None:
         s, ctx, action, "checklist_item", item.id, project_id=item.project_id, before={"zone": item.zone}
     )
     if item.zone == "formal":
-        await _reopen(s, item.project_id)
+        await reopen(s, item.project_id)
 
 
 async def restore(s: AsyncSession, ctx: TenantContext, item_id: UUID) -> dict[str, Any]:
     item = await service.load(s, item_id)
-    await _editable(s, ctx, item.project_id)
+    await editable(s, ctx, item.project_id)
     if item.deleted_at is not None:
         item.deleted_at, item.deleted_by = None, None
         await audit.record(
@@ -289,7 +289,7 @@ async def restore(s: AsyncSession, ctx: TenantContext, item_id: UUID) -> dict[st
             after={"zone": item.zone},
         )
         if item.zone == "formal":
-            await _reopen(s, item.project_id)
+            await reopen(s, item.project_id)
     return await _done(s, item)
 
 
@@ -297,7 +297,7 @@ async def create(
     s: AsyncSession, ctx: TenantContext, project_id: UUID, values: dict[str, Any], citation_ids: list[UUID]
 ) -> dict[str, Any]:
     """人工新增（标注「人工添加」，可以没有出处），直接进正式清单。"""
-    await _editable(s, ctx, project_id)
+    await editable(s, ctx, project_id)
     cl = await service.get_or_create(s, ctx, project_id)
     v = await _check(s, project_id, {"importance": "normal", "spec": {}, **values})
     item = ChecklistItem(
@@ -327,7 +327,7 @@ async def create(
         project_id=project_id,
         after={**{k: _json(x) for k, x in v.items()}, "citation_ids": [str(c) for c in citation_ids]},
     )
-    await _reopen(s, project_id)
+    await reopen(s, project_id)
     return await _done(s, item)
 
 
@@ -446,7 +446,7 @@ async def version_numbers(s: AsyncSession, version_ids: list[UUID]) -> dict[UUID
 async def confirm(s: AsyncSession, ctx: TenantContext, project_id: UUID) -> dict[str, Any]:
     """确认清单：把正式清单里未删除的条目存成不可变版本；内容和上一版一样就复用上一版（data-model §5）。
     待确认区的条目不进版本，也不参与检查。"""
-    await _editable(s, ctx, project_id)
+    await editable(s, ctx, project_id)
     cl = await service.get_or_create(s, ctx, project_id)
     rows = await service.items(s, project_id, zone="formal")
     if not rows:
diff --git a/server/src/bid_doctor/checklist/service.py b/server/src/bid_doctor/checklist/service.py
index f1518f9..43a31b4 100644
--- a/server/src/bid_doctor/checklist/service.py
+++ b/server/src/bid_doctor/checklist/service.py
@@ -140,6 +140,19 @@ async def merge(
     return stats
 
 
+async def superseded_pending(s: AsyncSession, project_id: UUID) -> int:
+    """「已被补遗 N 更新」还没确认的条数（FR-M2-10）。"""
+    return (
+        await s.execute(
+            select(func.count()).where(
+                ChecklistItem.project_id == project_id,
+                ChecklistItem.superseded_by_id.is_not(None),
+                ChecklistItem.deleted_at.is_(None),
+            )
+        )
+    ).scalar_one()
+
+
 async def overview(s: AsyncSession, project_id: UUID) -> dict[str, Any]:
     cl = (await s.execute(select(Checklist).where(Checklist.project_id == project_id))).scalar_one_or_none()
     zone_or_deleted = case((ChecklistItem.deleted_at.is_not(None), "deleted"), else_=ChecklistItem.zone)
@@ -234,6 +247,7 @@ async def overview(s: AsyncSession, project_id: UUID) -> dict[str, Any]:
             "formal": counts.get("formal", 0),
             "pending": counts.get("pending", 0),
             "deleted": counts.get("deleted", 0),
+            "superseded_pending": await superseded_pending(s, project_id),
             "by_category": by_category,
         },
         "marking_rules": [
@@ -284,7 +298,24 @@ async def items(
         by_item.setdefault(item_id, []).append(citations.to_api(c, citations.document_label(role, seq)))
     names = await identity.display_names(s, [r.accepted_by for r in rows if r.accepted_by])
     lots = await projects.lot_labels(s, project_id)
-    return [_item(r, by_item.get(r.id, []), names, lots) for r in rows]
+    # 来源文件（补遗 N）和「已被补遗 N 更新」的新条目来自哪份补遗（FR-M2-10）
+    newer = dict(
+        (
+            await s.execute(
+                select(ChecklistItem.id, ChecklistItem.origin_document_id).where(
+                    ChecklistItem.id.in_([r.superseded_by_id for r in rows if r.superseded_by_id])
+                )
+            )
+        )
+        .tuples()
+        .all()
+    )
+    doc_ids = {r.origin_document_id for r in rows if r.origin_document_id} | {d for d in newer.values() if d}
+    docs = {
+        d.id: citations.document_label(d.role, d.seq_no)
+        for d in (await s.execute(select(SourceDocument).where(SourceDocument.id.in_(doc_ids)))).scalars()
+    }
+    return [_item(r, by_item.get(r.id, []), names, lots, docs, newer) for r in rows]
 
 
 async def item(s: AsyncSession, item_id: UUID) -> dict[str, Any]:
@@ -310,8 +341,21 @@ ORIGIN_LABEL = {"ai": "AI", "rule": "规则", "human": "人工添加"}
 
 
 def _item(
-    r: ChecklistItem, cites: list[dict[str, Any]], names: dict[UUID, str], lots: dict[UUID, str | None]
+    r: ChecklistItem,
+    cites: list[dict[str, Any]],
+    names: dict[UUID, str],
+    lots: dict[UUID, str | None],
+    docs: dict[UUID, str],
+    newer: dict[UUID, UUID | None],
 ) -> dict[str, Any]:
+    source = docs.get(r.origin_document_id) if r.origin_document_id else None
+    from_addendum = source is not None and source != "招标文件" and r.origin != "human"
+    by = r.superseded_by_id
+    superseded = (
+        {"item_id": by, "document_label": docs.get(newer.get(by) or by, ""), "confirmed": r.deleted_at is not None}
+        if by
+        else None
+    )
     return {
         "id": r.id,
         "categories": r.categories,
@@ -326,7 +370,8 @@ def _item(
         "evidence_required": r.evidence_required,
         "spec": r.spec,
         "origin": r.origin,
-        "origin_label": ORIGIN_LABEL[r.origin],
+        "origin_label": source if from_addendum else ORIGIN_LABEL[r.origin],
+        "origin_document": {"id": r.origin_document_id, "label": source} if source else None,
         "zone": r.zone,
         "pending_reason": r.pending_reason,
         "no_citation_ack": r.no_citation_ack_by is not None,
@@ -334,7 +379,7 @@ def _item(
         "ai_values": r.ai_values,
         "edited_fields": r.edited_fields,
         "confidence": float(r.confidence) if r.confidence is not None else None,
-        "superseded_by": None,
+        "superseded_by": superseded,
         "accepted_by": {"id": r.accepted_by, "name": names.get(r.accepted_by, "")} if r.accepted_by else None,
         "deleted_at": r.deleted_at,
         "updated_at": r.updated_at,
@@ -401,6 +446,29 @@ async def key_dates(s: AsyncSession, project_id: UUID) -> list[dict[str, Any]]:
         .scalars()
         .all()
     )
+    # 已确认的补遗更新：新条目注「已按补遗 N 更新 · 原为……」（原型 project.html 的关键日期卡）
+    replaced = {
+        o.superseded_by_id: (o.spec or {}).get("schedule", {}).get("at")
+        for o in (
+            await s.execute(
+                select(ChecklistItem).where(
+                    ChecklistItem.project_id == project_id,
+                    ChecklistItem.superseded_by_id.in_([r.id for r in rows]),
+                    ChecklistItem.deleted_at.is_not(None),
+                )
+            )
+        ).scalars()
+    }
+    docs = {
+        d.id: citations.document_label(d.role, d.seq_no)
+        for d in (
+            await s.execute(
+                select(SourceDocument).where(
+                    SourceDocument.id.in_({r.origin_document_id for r in rows if r.origin_document_id})
+                )
+            )
+        ).scalars()
+    }
     out = []
     for r in rows:
         sched = (r.spec or {}).get("schedule") or {}
@@ -412,6 +480,9 @@ async def key_dates(s: AsyncSession, project_id: UUID) -> list[dict[str, Any]]:
                     "kind": sched.get("date_kind", "other"),
                     "at": sched["at"],
                     "superseded_pending": r.superseded_by_id is not None,
+                    "replaces": {"at": replaced[r.id], "document_label": docs.get(r.origin_document_id, "")}
+                    if r.id in replaced and r.origin_document_id
+                    else None,
                 }
             )
     return sorted(out, key=lambda d: d["at"])
diff --git a/server/src/bid_doctor/core/errors.py b/server/src/bid_doctor/core/errors.py
index e14de29..719a2db 100644
--- a/server/src/bid_doctor/core/errors.py
+++ b/server/src/bid_doctor/core/errors.py
@@ -26,6 +26,8 @@ CODES: dict[str, tuple[int, str]] = {
     "job_already_running": (409, "任务正在进行"),
     "job_finished": (409, "任务已经结束"),
     "project_read_only": (409, "项目已递交或已归档，要先撤销才能修改"),
+    "not_superseded": (409, "这一条没有待确认的补遗更新"),
+    "no_pending_value": (409, "这个字段没有待确认的补遗新值"),
     "document_role_not_parsable": (409, "这类文件不需要单独解析"),
     "document_not_ready": (409, "文件还在处理"),
     "upload_incomplete": (409, "文件还没有上传完"),
diff --git a/server/src/bid_doctor/document/pipeline/runner.py b/server/src/bid_doctor/document/pipeline/runner.py
index 596f2a6..95f8646 100644
--- a/server/src/bid_doctor/document/pipeline/runner.py
+++ b/server/src/bid_doctor/document/pipeline/runner.py
@@ -18,7 +18,7 @@ from sqlalchemy import select
 
 from bid_doctor.ai.providers.base import TransientError
 from bid_doctor.billing import service as billing
-from bid_doctor.checklist import extract, response_mode
+from bid_doctor.checklist import addendum, extract, response_mode
 from bid_doctor.checklist import service as checklist
 from bid_doctor.core import events
 from bid_doctor.core.db import TenantContext, tenant_tx
@@ -140,8 +140,13 @@ async def _stages(ctx: TenantContext, job_id: UUID) -> dict[str, Any]:
         stats = await checklist.merge(s, ctx, d, job_id, items, notes, lots)
         cl = await checklist.get_or_create(s, ctx, d.project_id)
         await response_mode.save(s, ctx, cl, d, body)  # 招标文件的响应方式（C12），清单页显示、可改
+        # 补遗：同一种日期、时间不同的旧条目标「已被补遗 N 更新」；项目字段的新值已在 apply 里放进待确认（FR-M2-10）
+        superseded = await addendum.link_dates(s, d)
+        fields_pending = await projects.pending_field_count(s, d.project_id) if d.role != "tender" else 0
     return {
         **stats,
+        "dates_superseded": superseded,
+        "fields_pending": fields_pending,
         "lots_found": len([k for k in lots if k != "默认"]),
         # 质量统计（评测和排查用）：没通过校验的原因码条数、对半重跑次数、拆到底仍不完整的分块、项目信息各字段的结论
         "verify_failures": {k.removeprefix("fail:"): n for k, n in run_stats.items() if k.startswith("fail:")},
diff --git a/server/src/bid_doctor/project/api.py b/server/src/bid_doctor/project/api.py
index 1fa7a28..b70f798 100644
--- a/server/src/bid_doctor/project/api.py
+++ b/server/src/bid_doctor/project/api.py
@@ -7,6 +7,7 @@ from fastapi import APIRouter, Header, Query
 from pydantic import BaseModel, Field
 from sqlalchemy import select
 
+from bid_doctor.checklist import addendum
 from bid_doctor.core.db import tenant_tx
 from bid_doctor.document.models import SourceDocument
 from bid_doctor.identity.deps import Ctx
@@ -110,6 +111,20 @@ async def set_project_field(
         )
 
 
+class PendingIn(BaseModel):
+    accept: bool
+
+
+@router.post("/projects/{project_id}/fields/{field_key}/pending")
+async def resolve_pending_field(project_id: UUID, field_key: FieldKey, body: PendingIn, ctx: Ctx) -> dict[str, Any]:
+    """确认或驳回补遗带来的新值；采用投标截止时间时，清单里「投标截止」日期条目的更新一起确认（AD3）。"""
+    async with tenant_tx(ctx) as s:
+        await edit.resolve_pending(s, ctx, project_id, field_key, body.accept)
+        if body.accept and field_key == "deadline_at":
+            await addendum.accept_kind(s, ctx, project_id, "bid_deadline")
+        return next(f for f in await service.fields(s, project_id) if f["key"] == field_key)
+
+
 @router.get("/projects/{project_id}/lots")
 async def list_lots(project_id: UUID, ctx: Ctx) -> dict[str, Any]:
     async with tenant_tx(ctx) as s:
diff --git a/server/src/bid_doctor/project/edit.py b/server/src/bid_doctor/project/edit.py
index 69b4f46..e476d0b 100644
--- a/server/src/bid_doctor/project/edit.py
+++ b/server/src/bid_doctor/project/edit.py
@@ -122,6 +122,36 @@ async def set_field(s: AsyncSession, ctx: TenantContext, project_id: UUID, key:
     )
 
 
+async def resolve_pending(s: AsyncSession, ctx: TenantContext, project_id: UUID, key: str, accept: bool) -> None:
+    """补遗带来的新值（FR-M2-10）：采用 → 变成 AI 值、出处换成补遗那一句、清掉人工值（以补遗为准，AD3）；
+    不采用 → 丢掉待确认值，保持原值。都写审计。"""
+    require(ctx, Permission.PROJECT_EDIT)
+    p = await service.get(s, ctx, project_id)
+    service.ensure_editable(p)
+    f = (
+        await s.execute(select(ProjectField).where(ProjectField.project_id == p.id, ProjectField.field_key == key))
+    ).scalar_one_or_none()
+    if f is None or f.pending_value is None:
+        raise AppError("no_pending_value")
+    before = {"value": f.human_value if f.human_value is not None else f.ai_value, "pending": f.pending_value}
+    if accept:
+        f.ai_value, f.ai_citation_id = f.pending_value, f.pending_citation_id
+        f.human_value, f.human_set_by, f.human_set_at = None, None, None
+        _sync(p, key, f.ai_value)
+    f.pending_value, f.pending_citation_id = None, None
+    await s.flush()
+    await audit.record(
+        s,
+        ctx,
+        "project_field.resolve_pending",
+        "project",
+        p.id,
+        project_id=p.id,
+        before={key: before},
+        after={key: {"accept": accept, "value": f.ai_value if accept else before["value"]}},
+    )
+
+
 def _source(f: ProjectField) -> str:
     return "human" if f.human_value is not None else "ai" if f.ai_value is not None else "none"
 
diff --git a/server/src/bid_doctor/project/extracted.py b/server/src/bid_doctor/project/extracted.py
index c4fa63d..dd66c1c 100644
--- a/server/src/bid_doctor/project/extracted.py
+++ b/server/src/bid_doctor/project/extracted.py
@@ -25,6 +25,8 @@ from bid_doctor.project.models import Lot, Project, ProjectField
 
 MONEY = ("budget_total", "ceiling_total")
 COLUMNS = ("name", "code", "purchaser", "agency", "procurement_method", "legal_regime")
+# 更正公告不改项目是谁：补遗、澄清里抽到的这几项（常把公告标题当成项目名称）不进待确认，免得一片噪音（FR-M2-10）
+IDENTITY = ("name", "code", "purchaser", "agency", "legal_regime")
 
 
 async def apply(
@@ -49,6 +51,8 @@ async def apply(
     if deadline:
         values["deadline_at"] = deadline
     for key, (value, sentence) in values.items():
+        if doc.role in ("addendum", "clarification") and key in IDENTITY:
+            continue
         cite = None
         if sentence is not None:
             (c,) = await citations.from_sentences(s, ctx, doc, [sentence], "ai", ["id", "quote", "basis"])
diff --git a/server/src/bid_doctor/project/service.py b/server/src/bid_doctor/project/service.py
index 19763c6..7924db7 100644
--- a/server/src/bid_doctor/project/service.py
+++ b/server/src/bid_doctor/project/service.py
@@ -125,6 +125,9 @@ async def fields(s: AsyncSession, project_id: UUID) -> list[dict[str, Any]]:
                 "updated_at": r.human_set_at if human else None,
                 "pending": {
                     "value": r.pending_value,
+                    "document_label": (cites.get(r.pending_citation_id) or {}).get("document_label", "补遗")
+                    if r.pending_citation_id
+                    else "补遗",
                     "citation": cites.get(r.pending_citation_id) if r.pending_citation_id else None,
                 }
                 if r.pending_value is not None
@@ -134,6 +137,19 @@ async def fields(s: AsyncSession, project_id: UUID) -> list[dict[str, Any]]:
     return out
 
 
+async def pending_field_count(s: AsyncSession, project_id: UUID) -> int:
+    """补遗带来的新值还没确认的字段数（FR-M2-10）。"""
+    return (
+        await s.execute(
+            select(func.count()).where(
+                ProjectField.project_id == project_id,
+                ProjectField.pending_value.is_not(None),
+                func.jsonb_typeof(ProjectField.pending_value) != "null",  # ORM 写 None 存的是 JSON null
+            )
+        )
+    ).scalar_one()
+
+
 async def lot_labels(s: AsyncSession, project_id: UUID) -> dict[UUID, str | None]:
     """项目的分包编号（给清单项展示「采购包 N」、校验 lot_id 用）；默认包没有编号，表示各包通用。"""
     rows = await s.execute(select(Lot.id, Lot.lot_no, Lot.is_default).where(Lot.project_id == project_id))
diff --git a/server/src/bid_doctor/project/workbench.py b/server/src/bid_doctor/project/workbench.py
index f51b5b9..26ef1cf 100644
--- a/server/src/bid_doctor/project/workbench.py
+++ b/server/src/bid_doctor/project/workbench.py
@@ -48,7 +48,17 @@ def _key_dates(dates: list[dict[str, Any]], fields: list[dict[str, Any]]) -> lis
     if f is None:
         return dates
     rest = [d for d in dates if d.get("kind") != "bid_deadline"]
-    edited = {"item_id": None, "label": "投标截止", "kind": "bid_deadline", "at": f["value"], "edited": True}
+    pending = any(d.get("superseded_pending") for d in dates if d.get("kind") == "bid_deadline") or bool(
+        f.get("pending")
+    )
+    edited = {
+        "item_id": None,
+        "label": "投标截止",
+        "kind": "bid_deadline",
+        "at": f["value"],
+        "edited": True,
+        "superseded_pending": pending,
+    }
     return sorted([*rest, edited], key=lambda d: str(d["at"]))
 
 
diff --git a/server/tests/fixtures/addendum-mini.pdf b/server/tests/fixtures/addendum-mini.pdf
new file mode 100644
index 0000000..b46278a
Binary files /dev/null and b/server/tests/fixtures/addendum-mini.pdf differ
diff --git a/server/tests/fixtures/make_bid_fixtures.py b/server/tests/fixtures/make_bid_fixtures.py
index b947253..254969f 100644
--- a/server/tests/fixtures/make_bid_fixtures.py
+++ b/server/tests/fixtures/make_bid_fixtures.py
@@ -6,7 +6,8 @@
 - bid-mini-v2.pdf：补上了交换机硬件 BFD → 复查时这个问题「本次已解决」；
 - bid-mini-forms.pdf：v2 的内容 + 格式文件里的规则问题（大写和小写金额不一致、授权书没填投标人名称、
   报价附加条件、另外给了一个优惠报价），措辞故意和评测集的开发词库不同；
-- bid-mini-quals.pdf：v2 的内容 + 企业资质情况表（证书、编号、有效期，全部虚构），资质匹配的端到端测试用。
+- bid-mini-quals.pdf：v2 的内容 + 企业资质情况表（证书、编号、有效期，全部虚构），资质匹配的端到端测试用；
+- addendum-mini.pdf：tender-full.pdf 的更正公告（补遗，FR-M2-10）：递交截止时间推后一周、新增一条 ★ 参数。
 """
 
 from __future__ import annotations
@@ -62,8 +63,18 @@ QUALS = [
     "</table>",
 ]
 
+ADDENDUM = [
+    "<h1>关于某市智慧政务系统集成项目的更正公告（测试样例，内容虚构）</h1>",
+    "<p>各潜在供应商：本项目采购文件更正如下，其他内容不变。</p>",
+    "<p>一、响应文件递交截止时间更正为：2026年12月8日9时30分（北京时间）。</p>",
+    "<p>二、★新增技术要求：存储系统可用容量不低于100TB，并提供产品彩页作为证明材料。</p>",
+    "<p>本更正公告是采购文件的组成部分，与采购文件具有同等效力。</p>",
+    "</body></html>",
+]
+
 if __name__ == "__main__":
     render("bid-mini-v1.pdf", [*COMMON, *TAIL])
     render("bid-mini-v2.pdf", [*COMMON, BFD, *TAIL])
     render("bid-mini-forms.pdf", [*COMMON, BFD, *FORMS, *TAIL])
     render("bid-mini-quals.pdf", [*COMMON, BFD, *QUALS, *TAIL])
+    render("addendum-mini.pdf", ADDENDUM)
diff --git a/server/tests/test_addendum_flow.py b/server/tests/test_addendum_flow.py
new file mode 100644
index 0000000..fd0c974
--- /dev/null
+++ b/server/tests/test_addendum_flow.py
@@ -0,0 +1,109 @@
+"""补遗追加（FR-M2-10，addendum-plan）：追加 → 解析扣 1 次 → 新条目标「补遗 1」、清单回到草稿、
+截止时间进待确认、日期条目标「已被补遗 1 更新」；采用 / 不采用；采用截止时间时日期条目一起确认；检查预览提示。"""
+
+from __future__ import annotations
+
+from typing import Any
+
+from tests.conftest import FIXTURES, User, balance, project_with_tender, run_parse, upload
+
+
+async def add_addendum(u: User, project_id: str) -> tuple[str, dict[str, Any]]:
+    done = await upload(u, "关于某市智慧政务系统集成项目的更正公告.pdf", (FIXTURES / "addendum-mini.pdf").read_bytes())
+    assert done.status_code == 200, done.text
+    r = await u.post(f"/projects/{project_id}/documents", json={"upload_id": done.json()["id"], "role": "addendum"})
+    assert r.status_code == 201, r.text
+    doc = r.json()
+    assert doc["label"] == "补遗 1"
+    job = await run_parse(u, doc["id"])
+    assert job["status"] == "succeeded", job
+    return doc["id"], job
+
+
+def deadline_items(items: list[dict[str, Any]]) -> list[dict[str, Any]]:
+    return [i for i in items if ((i.get("spec") or {}).get("schedule") or {}).get("date_kind") == "bid_deadline"]
+
+
+async def parsed_project(u: User) -> str:
+    project_id, tender_id = await project_with_tender(u, "tender-full.pdf")
+    assert (await run_parse(u, tender_id))["status"] == "succeeded"
+    return project_id
+
+
+async def test_addendum_merge_and_accept(user: User) -> None:
+    project_id = await parsed_project(user)
+    before = (await user.get(f"/projects/{project_id}")).json()
+    assert before["deadline_at"].startswith("2026-12-01T01:30")
+    await user.put(f"/projects/{project_id}/fields/deadline_at", json={"value": "2026-12-02T09:30:00+08:00"})
+    assert (await user.post(f"/projects/{project_id}/checklist/confirm")).status_code == 200
+    quota = await balance(user)
+
+    _, job = await add_addendum(user, project_id)
+    result = job["result"]
+    assert result["dates_superseded"] == 1 and result["fields_pending"] >= 1 and result["items_added"] >= 2
+    assert await balance(user) == quota - 1  # 补遗单独扣 1 次解析
+
+    overview = (await user.get(f"/projects/{project_id}/checklist")).json()
+    assert overview["status"] == "draft" and overview["counts"]["superseded_pending"] == 1  # 并入后回到草稿（AD1）
+    items = (await user.get(f"/projects/{project_id}/checklist/items")).json()["items"]
+    new_items = [i for i in items if i["origin_label"] == "补遗 1"]
+    assert any("存储系统" in i["title"] for i in new_items)  # 新条目直接进正式清单
+    assert all(i["origin_document"]["label"] == "补遗 1" for i in new_items)
+    old, new = sorted(deadline_items(items), key=lambda i: i["origin_label"] != "补遗 1")[::-1]
+    assert old["superseded_by"] == {"item_id": new["id"], "document_label": "补遗 1", "confirmed": False}
+    assert new["superseded_by"] is None
+
+    # 没确认之前项目用旧值（AD4），概览和检查预览都能看到待确认
+    detail = (await user.get(f"/projects/{project_id}")).json()
+    assert detail["deadline_at"].startswith("2026-12-02T01:30")
+    (f,) = [x for x in detail["fields"] if x["key"] == "deadline_at"]
+    assert f["source"] == "human" and f["pending"]["value"].startswith("2026-12-08T09:30")
+    assert f["pending"]["document_label"] == "补遗 1"
+    assert any(d["superseded_pending"] for d in detail["key_dates"])
+    preview = (await user.get(f"/projects/{project_id}/check-preview")).json()
+    assert preview["pending_updates"] >= 2
+
+    # 采用截止时间：清掉人工值、以补遗为准；清单里「投标截止」条目的更新一起确认（AD3）
+    r = await user.post(f"/projects/{project_id}/fields/deadline_at/pending", json={"accept": True})
+    assert r.status_code == 200, r.text
+    assert r.json()["source"] == "ai" and r.json()["pending"] is None and r.json()["value"].startswith("2026-12-08")
+    detail = (await user.get(f"/projects/{project_id}")).json()
+    assert detail["deadline_at"].startswith("2026-12-08T01:30")
+    (bid,) = [d for d in detail["key_dates"] if d["label"] == "投标截止"]
+    assert bid["replaces"]["document_label"] == "补遗 1" and bid["replaces"]["at"].startswith("2026-12-01")
+    old_now = (await user.get(f"/checklist-items/{old['id']}")).json()
+    assert old_now["deleted_at"] and old_now["superseded_by"]["confirmed"]
+    assert (await user.get(f"/projects/{project_id}/checklist")).json()["counts"]["superseded_pending"] == 0
+    r = await user.post(f"/projects/{project_id}/fields/deadline_at/pending", json={"accept": True})
+    assert r.status_code == 409 and r.json()["code"] == "no_pending_value"
+
+
+async def test_addendum_reject_keeps_both(user: User) -> None:
+    project_id = await parsed_project(user)
+    await add_addendum(user, project_id)
+    items = (await user.get(f"/projects/{project_id}/checklist/items")).json()["items"]
+    (old,) = [i for i in deadline_items(items) if i["superseded_by"]]
+
+    r = await user.post(f"/checklist-items/{old['id']}/supersession", json={"accept": False})
+    assert r.status_code == 200 and r.json()["superseded_by"] is None and r.json()["deleted_at"] is None
+    assert len(deadline_items((await user.get(f"/projects/{project_id}/checklist/items")).json()["items"])) == 2
+    r = await user.post(f"/checklist-items/{old['id']}/supersession", json={"accept": True})
+    assert r.status_code == 409 and r.json()["code"] == "not_superseded"
+
+    r = await user.post(f"/projects/{project_id}/fields/deadline_at/pending", json={"accept": False})
+    assert r.json()["pending"] is None and r.json()["value"].startswith("2026-12-01")
+    assert (await user.get(f"/projects/{project_id}")).json()["deadline_at"].startswith("2026-12-01T01:30")
+    assert (await user.get(f"/projects/{project_id}/check-preview")).json()["pending_updates"] == 0
+
+    # 已递交的项目只读
+    assert (await user.post(f"/projects/{project_id}/transitions", json={"action": "submit"})).status_code == 200
+    r = await user.post(f"/checklist-items/{old['id']}/supersession", json={"accept": True})
+    assert r.status_code == 409 and r.json()["code"] == "project_read_only"
+
+
+def test_same_time_ignores_missing_timezone() -> None:
+    """补遗只是复述原时间时不关联；模型给的时间有时带时区、有时不带，按北京时间比。"""
+    from bid_doctor.checklist.addendum import _same_time  # pyright: ignore[reportPrivateUsage]
+
+    assert _same_time("2026-12-01T09:30", "2026-12-01T09:30:00+08:00")
+    assert not _same_time("2026-12-01T09:30", "2026-12-08T09:30:00+08:00")