chore(sdui-parser): re-record the objectui lockstep at pin 56cf4d8e89b7

pnpm gen:sdui-lockstep against a checkout of objectui at the pin: only
rev, revDate and recordedAgainstPin move. The grammar region blob
(0131f27cf86d), the 25 diagnostic codes and the containment predicate
blob (76c18fb95d1f) are unchanged; objectui's packages/sdui-parser/src
has no diff over cf153eb2e535..56cf4d8e89b7.

Claude-Session: https://claude.ai/code/session_01AFrKwndmrCLtF5V9hNtrw3
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/sdui-parser/objectui-lockstep.json

@@ -6,8 +6,8 @@
   ],
   "objectui": {
     "repo": "https://github.com/objectstack-ai/objectui.git",
-    "rev": "cf153eb2e5351505abf3b82fb76bfdc9a841bbde",
-    "revDate": "2026-10-20T19:13:54+00:00",
+    "rev": "56cf4d8e89b71586e4d9bb9921433d44b03addf3",
+    "revDate": "2026-10-22T00:44:27+00:00",
     "source": "packages/sdui-parser/src",
     "files": [
       "packages/sdui-parser/src/body-dialect.ts",
@@ -21,7 +21,7 @@
       "packages/sdui-parser/src/validate.ts"
     ]
   },
-  "recordedAgainstPin": "cf153eb2e5351505abf3b82fb76bfdc9a841bbde",
+  "recordedAgainstPin": "56cf4d8e89b71586e4d9bb9921433d44b03addf3",
   "grammarRegion": {
     "file": "packages/sdui-parser/src/parse.ts",
     "delimiter": "/* ---------------------- the JS literal subset (#6614) ---------------------- */",