chore(scripts): record the new pin's engine double in the engine-double-contract ledger

Claude-Session: https://claude.ai/code/session_016tKoy8NJa35Yih1FdzrVmn
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

scripts/engine-double-contract.pinned.json

@@ -1171,6 +1171,11 @@
       "verb": "update",
       "pinned": 1
     },
+    {
+      "file": "packages/metadata-protocol/src/protocol.read-lock-flags-write-door.test.ts",
+      "verb": "findOne",
+      "pinned": 1
+    },
     {
       "file": "packages/metadata-protocol/src/protocol.read-seam-empty-accumulator.test.ts",
       "verb": "findOne",