diff --git a/web/src/App.tsx b/web/src/App.tsx
index 3fb5f2c0..09ddffd5 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -23,6 +23,10 @@ import { listProjectWorkflowDocuments } from './api/projectDocuments';
 import { patchDocumentContent, getRevisionState } from './api/documentRevision';
 import type { DiffResult, OverlayMode } from './features/documentRevision/types';
 import { applyHeadBlockMap, astToClientBlockMap } from './features/documentRevision/overlayMatch';
+import {
+  documentRevisionInactiveHint,
+  revisionToolbarMountMode,
+} from './features/documentRevision/revisionToolbarMount';
 import { createProject, fetchProjectLineage, fetchProjects, getProject } from './api/projectWorkflow';
 import {
   addProjectMember,
@@ -3887,13 +3891,44 @@ export default function App() {
               onExportXlsx={handleExportXlsx}
               onExportMarkdown={handleExportMarkdown}
             />
-            <DocumentRevisionToolbar
-              docId={activeDocId}
-              overlayMode={docRevOverlayMode}
-              onOverlayModeChange={setDocRevOverlayMode}
-              onOverlay={setDocRevOverlay}
-              revisionRefreshKey={docRevRefreshKey}
-            />
+            {(() => {
+              const revDoc =
+                deliverables.find((d) => d.docId === activeDocId) ||
+                visibleDeliverables.find((d) => d.docId === activeDocId);
+              const mode = revisionToolbarMountMode(
+                revDoc ?? { docId: activeDocId, isTemplateOnly: true },
+              );
+              if (mode === 'toolbar' && revDoc) {
+                return (
+                  <DocumentRevisionToolbar
+                    docId={activeDocId}
+                    overlayMode={docRevOverlayMode}
+                    onOverlayModeChange={setDocRevOverlayMode}
+                    onOverlay={setDocRevOverlay}
+                    revisionRefreshKey={docRevRefreshKey}
+                  />
+                );
+              }
+              const hint = documentRevisionInactiveHint(
+                revDoc ?? { docId: activeDocId, isTemplateOnly: true },
+              );
+              if (!hint) return null;
+              return (
+                <div
+                  data-testid="doc-rev-template-hint"
+                  className="doc-rev-template-hint"
+                  style={{
+                    padding: '6px 12px',
+                    borderBottom: '1px solid var(--border, #ddd)',
+                    fontSize: 12,
+                    color: 'var(--text-muted, #64748b)',
+                    background: 'var(--bg-subtle, #f8fafc)',
+                  }}
+                >
+                  {hint}
+                </div>
+              );
+            })()}
             {docRevConflict && (
               <div role="alert" style={{ padding: '8px 12px', background: '#fff3cd', borderBottom: '1px solid #e0c36a' }}>
                 {docRevConflict}
diff --git a/web/src/features/documentRevision/revisionToolbarMount.test.ts b/web/src/features/documentRevision/revisionToolbarMount.test.ts
new file mode 100644
index 00000000..9dbd472d
--- /dev/null
+++ b/web/src/features/documentRevision/revisionToolbarMount.test.ts
@@ -0,0 +1,78 @@
+import { describe, it } from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  LOCAL_REVISION_PREVIEW_HINT,
+  TEMPLATE_REVISION_PREVIEW_HINT,
+  documentRevisionInactiveHint,
+  revisionToolbarMountMode,
+  shouldMountDocumentRevisionToolbar,
+} from './revisionToolbarMount';
+
+describe('revisionToolbarMount', () => {
+  it('exposes clear non-error template preview hint copy', () => {
+    assert.equal(TEMPLATE_REVISION_PREVIEW_HINT, '模板预览：首轮编制后启用版本账本');
+  });
+
+  it('template-only slots do not mount toolbar and show template hint', () => {
+    const doc = { docId: 'doc-p6059-intake', isTemplateOnly: true as const };
+    assert.equal(shouldMountDocumentRevisionToolbar(doc), false);
+    assert.equal(revisionToolbarMountMode(doc), 'template_hint');
+    assert.equal(documentRevisionInactiveHint(doc), TEMPLATE_REVISION_PREVIEW_HINT);
+  });
+
+  it('legacy local mock docs do not mount toolbar', () => {
+    for (const docId of ['doc-001', 'doc-002', 'doc-shared-001', 'doc-private-001', 'doc-cusa-intake']) {
+      assert.equal(shouldMountDocumentRevisionToolbar({ docId, isTemplateOnly: false }), false, docId);
+      assert.equal(revisionToolbarMountMode({ docId, isTemplateOnly: false }), 'local_hint', docId);
+      assert.equal(
+        documentRevisionInactiveHint({ docId, isTemplateOnly: false }),
+        LOCAL_REVISION_PREVIEW_HINT,
+        docId,
+      );
+    }
+  });
+
+  it('generated controlled doc-p / doc_proj mount toolbar when not template-only', () => {
+    assert.equal(
+      shouldMountDocumentRevisionToolbar({ docId: 'doc-p6059-intake', isTemplateOnly: false }),
+      true,
+    );
+    assert.equal(
+      shouldMountDocumentRevisionToolbar({ docId: 'doc_proj6059_intake', isTemplateOnly: false }),
+      true,
+    );
+    assert.equal(
+      revisionToolbarMountMode({ docId: 'doc_proj56_srs', isTemplateOnly: false }),
+      'toolbar',
+    );
+    assert.equal(documentRevisionInactiveHint({ docId: 'doc_proj56_srs', isTemplateOnly: false }), null);
+  });
+
+  it('server freeform mounts toolbar; IndexedDB upload orphan does not', () => {
+    assert.equal(
+      shouldMountDocumentRevisionToolbar({
+        docId: 'doc-free-1710000000000-2',
+        isTemplateOnly: false,
+        governanceMode: 'freeform',
+      }),
+      true,
+    );
+    assert.equal(
+      shouldMountDocumentRevisionToolbar({
+        docId: 'doc-upload-1789263145197-0',
+        isTemplateOnly: false,
+        sourceType: 'uploaded_file',
+        governanceMode: 'freeform',
+      }),
+      false,
+    );
+    assert.equal(
+      revisionToolbarMountMode({
+        docId: 'doc-upload-1789263145197-0',
+        isTemplateOnly: false,
+        sourceType: 'uploaded_file',
+      }),
+      'local_hint',
+    );
+  });
+});
diff --git a/web/src/features/documentRevision/revisionToolbarMount.ts b/web/src/features/documentRevision/revisionToolbarMount.ts
new file mode 100644
index 00000000..81b82b60
--- /dev/null
+++ b/web/src/features/documentRevision/revisionToolbarMount.ts
@@ -0,0 +1,107 @@
+/**
+ * App 是否挂载 DocumentRevisionToolbar（会请求 revision-state）的可测判断。
+ *
+ * 根因：对 isTemplateOnly 新项目模板与 legacy local mock（如 doc-001）无条件挂工具条，
+ * 导致「版本账本未就绪」假错误。模板预览只显示非错误提示，不发 revision-state。
+ *
+ * UI-16：IndexedDB 孤儿上传（doc-upload-*）不得挂工具条冒充 V1。
+ * 受控生成后（isTemplateOnly=false 的 doc-p / doc_proj）与服务端 freeform 正常挂载。
+ */
+
+import type { DeliverableItem } from '../../types/workbench';
+
+export const TEMPLATE_REVISION_PREVIEW_HINT = '模板预览：首轮编制后启用版本账本';
+export const LOCAL_REVISION_PREVIEW_HINT = '本地预览：尚未接入服务端版本账本';
+
+export type RevisionMountDoc = Pick<DeliverableItem, 'docId' | 'isTemplateOnly'> &
+  Partial<
+    Pick<
+      DeliverableItem,
+      'governanceMode' | 'sourceType' | 'fileMeta' | 'space' | 'isFixedWorkflow' | 'taskKey'
+    >
+  >;
+
+export type RevisionToolbarMountMode = 'toolbar' | 'template_hint' | 'local_hint' | 'none';
+
+/** 前端种子/演示交付物 ID（无服务端账本）。 */
+export function isLegacyLocalMockDocId(docId: string): boolean {
+  const id = (docId || '').trim();
+  if (!id) return true;
+  if (/^doc-\d{3}$/.test(id)) return true;
+  if (/^doc-shared-\d+$/.test(id)) return true;
+  if (/^doc-private-\d{1,3}$/.test(id)) return true;
+  if (id.startsWith('doc-cusa-')) return true;
+  return false;
+}
+
+/** 仅 IndexedDB、从未服务端注册的上传预览（UI-16）。 */
+export function isIndexedDbUploadOrphanDocId(docId: string): boolean {
+  return /^doc-upload-/.test((docId || '').trim());
+}
+
+/** 服务端受控 / freeform 事实源 ID。 */
+export function isServerBackedRevisionDocId(docId: string): boolean {
+  const id = (docId || '').trim();
+  if (!id || isLegacyLocalMockDocId(id) || isIndexedDbUploadOrphanDocId(id)) return false;
+  if (/^doc_proj\d+_/.test(id)) return true;
+  if (/^doc-free-\d+/.test(id)) return true;
+  return false;
+}
+
+/**
+ * 生成后的受控槽位（isTemplateOnly 已清）可用 doc-p / doc_proj 连字符形态挂载。
+ * 模板槽位由 isTemplateOnly 拦截，不会走到这里。
+ */
+export function isGeneratedControlledDocId(docId: string): boolean {
+  const id = (docId || '').trim();
+  if (!id || isLegacyLocalMockDocId(id)) return false;
+  if (/^doc_proj\d+_/.test(id)) return true;
+  if (/^doc-p\d+-/.test(id)) return true;
+  if (/^doc-proj\d+-/.test(id)) return true;
+  return false;
+}
+
+/** 仅真实可接入账本且非模板槽位才挂工具条并发起 revision-state。 */
+export function shouldMountDocumentRevisionToolbar(
+  doc: RevisionMountDoc | null | undefined,
+): boolean {
+  if (!doc?.docId) return false;
+  if (doc.isTemplateOnly) return false;
+  if (isLegacyLocalMockDocId(doc.docId)) return false;
+  if (isIndexedDbUploadOrphanDocId(doc.docId)) return false;
+
+  if (isServerBackedRevisionDocId(doc.docId)) return true;
+  if (isGeneratedControlledDocId(doc.docId)) return true;
+
+  // 服务端 freeform：ID 可能非 doc-free 前缀，但带 freeform 事实字段且非本地孤儿
+  if (doc.governanceMode === 'freeform' && doc.sourceType !== 'uploaded_file') {
+    return !isLegacyLocalMockDocId(doc.docId);
+  }
+
+  return false;
+}
+
+export function revisionToolbarMountMode(
+  doc: RevisionMountDoc | null | undefined,
+): RevisionToolbarMountMode {
+  if (!doc?.docId) return 'none';
+  if (doc.isTemplateOnly) return 'template_hint';
+  if (shouldMountDocumentRevisionToolbar(doc)) return 'toolbar';
+  if (isLegacyLocalMockDocId(doc.docId) || isIndexedDbUploadOrphanDocId(doc.docId)) {
+    return 'local_hint';
+  }
+  if (/^doc-p\d+-/.test(doc.docId) || /^doc-proj\d+-/.test(doc.docId)) {
+    return 'template_hint';
+  }
+  return 'local_hint';
+}
+
+/** 未挂载工具条时的非错误提示（不得写成账本未就绪）。 */
+export function documentRevisionInactiveHint(
+  doc: RevisionMountDoc | null | undefined,
+): string | null {
+  const mode = revisionToolbarMountMode(doc);
+  if (mode === 'toolbar' || mode === 'none') return null;
+  if (mode === 'template_hint') return TEMPLATE_REVISION_PREVIEW_HINT;
+  return LOCAL_REVISION_PREVIEW_HINT;
+}