Adopt the server duty draft when a save result is unknown

Why: a lost write response was keeping the old duty version, so the next save replayed it, and a busy save could stay locked if another request advanced the sequence.
Evidence: SELF vitest duty-draft 6 passed, tsc passed, knip 43, Playwright duty flows 3 passed.
Impact: an unknown save reloads server roles, confirmation resets, and busy clears even if a later read is discarded.
Refs: docs/proposals/2026-10-15-rdm-duty-matrix-rework.md
Co-authored-by: Cursor <cursoragent@cursor.com>

src/components/duties/RdmDutiesSection.tsx

@@ -69,10 +69,11 @@ export function RdmDutiesSection({ project }: { project: Project }) {
   const [legacy, setLegacy] = useState<LegacyOut['findings']>([])
   const [legacyOpen, setLegacyOpen] = useState(false)
   const seq = useRef(0)
+  const op = useRef(0)
   const docsRef = useRef(docs)
   docsRef.current = docs
 
-  const load = async (cursor: string, request = ++seq.current) => {
+  const load = async (cursor: string, request = ++seq.current, replaceDirty = false) => {
     const seenMembers: DutyMember[] = []
     const seenCells: MatrixOut['cells'] = []
     let pageDocs: MatrixDoc[] = []
@@ -96,7 +97,7 @@ export function RdmDutiesSection({ project }: { project: Project }) {
       setMembers(seenMembers)
       setCanAssign(assignable)
       setNextDoc(nextDocument)
-      setDocs(current => absorbServerDocs(current, pageDocs, seenCells))
+      setDocs(current => absorbServerDocs(current, pageDocs, seenCells, replaceDirty))
     } catch (error) {
       if (request !== seq.current) return
       setErr(String(error))
@@ -118,6 +119,7 @@ export function RdmDutiesSection({ project }: { project: Project }) {
 
   const onCell = (id: string, owner: string, duty: CellDuty) => {
     setPreview([])
+    setConfirm(false)
     setDocs(current => editCell(current, id, owner, duty))
   }
 
@@ -136,7 +138,9 @@ export function RdmDutiesSection({ project }: { project: Project }) {
       return
     }
     const request = ++seq.current
+    const ticket = ++op.current
     setBusy(true); setErr(''); setNotice('')
+    let sent = false
     try {
       const looked = await api.rdmProjectCommand<PreviewOut>(project, 'rdm.duty.preview', dutyPreviewPayload(projectId, payload.docs))
       if (request !== seq.current) return
@@ -149,18 +153,25 @@ export function RdmDutiesSection({ project }: { project: Project }) {
         setErr('在途审签将失效。确认后再保存。')
         return
       }
+      sent = true
       await api.rdmProjectCommand(project, 'rdm.review.assign.doc.batch', dutyPreviewPayload(projectId, savePayload(docsRef.current, confirm).docs))
       if (request !== seq.current) return
       setNotice('已保存文档职责')
       setPreview([])
+      setConfirm(false)
       setDocs(current => current.map(doc => ({ ...doc, dirty: false })))
       await load(docCursor, request)
     } catch (error) {
       if (request !== seq.current) return
+      if (!sent) {
+        setErr(String(error))
+        return
+      }
       setErr(`保存结果未确认：${error}`)
-      await load(docCursor, request)
+      setConfirm(false)
+      await load(docCursor, request, true)
     } finally {
-      if (request === seq.current) setBusy(false)
+      if (ticket === op.current) setBusy(false)
     }
   }
 
@@ -177,6 +188,7 @@ export function RdmDutiesSection({ project }: { project: Project }) {
 
   const applyIdentical = async () => {
     const request = ++seq.current
+    const ticket = ++op.current
     setBusy(true)
     try {
       await api.rdmProjectCommand(project, 'rdm.duty.legacy.apply', dutyLegacyPayload(projectId))
@@ -188,7 +200,7 @@ export function RdmDutiesSection({ project }: { project: Project }) {
       if (request !== seq.current) return
       setErr(String(error))
     } finally {
-      if (request === seq.current) setBusy(false)
+      if (ticket === op.current) setBusy(false)
     }
   }
 
@@ -205,10 +217,10 @@ export function RdmDutiesSection({ project }: { project: Project }) {
         <button className="ad-mini" role="tab" aria-selected={view === 'matrix'} onClick={() => setView('matrix')}>矩阵</button>
       </div>
       <div className="ad-row">
-        <input aria-label="筛选文档名称或编号" value={query} placeholder="名称或编号" onChange={event => { setDocCursor(''); setQuery(event.target.value) }} />
-        <input aria-label="筛选类型" value={typeKey} placeholder="类型" onChange={event => { setDocCursor(''); setTypeKey(event.target.value) }} />
-        <input aria-label="筛选阶段" value={stage} placeholder="阶段" onChange={event => { setDocCursor(''); setStage(event.target.value) }} />
-        <select aria-label="筛选当前职责" value={assignment} onChange={event => { setDocCursor(''); setAssignment(event.target.value) }}>
+        <input aria-label="筛选文档名称或编号" value={query} placeholder="名称或编号" disabled={busy} onChange={event => { setDocCursor(''); setQuery(event.target.value) }} />
+        <input aria-label="筛选类型" value={typeKey} placeholder="类型" disabled={busy} onChange={event => { setDocCursor(''); setTypeKey(event.target.value) }} />
+        <input aria-label="筛选阶段" value={stage} placeholder="阶段" disabled={busy} onChange={event => { setDocCursor(''); setStage(event.target.value) }} />
+        <select aria-label="筛选当前职责" value={assignment} disabled={busy} onChange={event => { setDocCursor(''); setAssignment(event.target.value) }}>
           <option value="">全部</option>
           <option value="assigned">已分配</option>
           <option value="unassigned">未分配</option>
@@ -218,13 +230,13 @@ export function RdmDutiesSection({ project }: { project: Project }) {
       {view === 'document' && <DutyByDocumentView docId={docId} docs={visibleDocs} members={members} disabled={disabled} onDoc={setDocId} onCell={onCell} />}
       {view === 'matrix' && <DutyMatrixView docs={visibleDocs} members={members} disabled={disabled} narrow={narrow} onCell={onCell} />}
       <div className="ad-row">
-        {docCursor && <button className="ad-mini" onClick={() => setDocCursor('')}>文档首页</button>}
-        {nextDoc && <button className="ad-mini" onClick={() => setDocCursor(nextDoc)}>下一页文档</button>}
+        {docCursor && <button className="ad-mini" disabled={busy} onClick={() => setDocCursor('')}>文档首页</button>}
+        {nextDoc && <button className="ad-mini" disabled={busy} onClick={() => setDocCursor(nextDoc)}>下一页文档</button>}
         <Btn variant="primary" icon="check" disabled={disabled || dirtyDocs(docs).length === 0} onClick={() => { void save() }}>保存职责</Btn>
       </div>
       <DutyChangePreview impacts={preview} confirm={confirm} onConfirm={setConfirm} />
       <Collapsible id="duty-legacy" open={legacyOpen} onToggle={setLegacyOpen} trigger="旧章节职责">
-        <button className="ad-mini" onClick={() => { void scanLegacy() }}>扫描</button>
+        <button className="ad-mini" disabled={busy} onClick={() => { void scanLegacy() }}>扫描</button>
         <button className="ad-mini" disabled={disabled} onClick={() => { void applyIdentical() }}>归并无歧义覆盖</button>
         {legacy.length === 0 ? <p className="ad-hint">尚未扫描，或没有章节级覆盖。</p> : (
           <ul>

src/duties/draft.ts

@@ -132,6 +132,7 @@ export function absorbServerDocs(
     dutyVersion: number; activeRound?: number; legacySectionOverrides?: number
   }[],
   cells: { docId: string; owner: string; duty: string }[],
+  replaceDirty = false,
 ): DutyDocDraft[] {
   const byId = new Map(current.map(doc => [doc.docId, doc]))
   const pageIds = new Set(docs.map(doc => doc.docId))
@@ -139,7 +140,7 @@ export function absorbServerDocs(
   for (const doc of docs) {
     const previous = byId.get(doc.docId)
     const serverRoles = rolesFromCells(doc.docId, cells)
-    const keepDraft = previous?.dirty === true
+    const keepDraft = !replaceDirty && previous?.dirty === true
     next.push({
       docId: doc.docId,
       title: doc.title,
@@ -156,7 +157,7 @@ export function absorbServerDocs(
     })
   }
   for (const doc of current) {
-    if (doc.dirty && !pageIds.has(doc.docId)) next.push(doc)
+    if (!replaceDirty && doc.dirty && !pageIds.has(doc.docId)) next.push(doc)
   }
   return next
 }