docs(manual): bind the manual to the gap-fix commit

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

tools/web/manual/feature-matrix.json

@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
   "lastVerified": "2026-11-13",
-  "sourceCommit": "aa8cc1313",
+  "sourceCommit": "b932db764",
   "legend": {
     "usable": "可在当前 Web UI 完成",
     "partial": "可用但有明确范围/限制",

user-manual/WEB_Blender_Web_Manual_20261113/manual.json

@@ -5,7 +5,7 @@
   "title": "Web Blender 用户手册",
   "version": "1.0.0",
   "lastVerified": "2026-11-13",
-  "sourceCommit": "aa8cc1313",
+  "sourceCommit": "b932db764",
   "desktopVersion": "Blender 5.2.0 LTS",
   "intro": "本手册对标当前 Web Blender（?ui=web）的实际功能，按真实界面和真实操作步骤编写。工程保存、重开和恢复使用浏览器 OPFS；需要本地文件时使用独立的“下载”动作。手册不宣称完整桌面 Blender parity，未实现项在支持矩阵和限制章节中如实列出。",
   "storagePolicy": {