Executor source-semantics check

One public read-only RPC batch requested the exact incident block header and executor bytecode. The header succeeded; bytecode retrieval returned an archive-access error. PINNED-CODE-ACCESS-RESULT.json records the request and exact code error, together with the hash of the locally retained full response. This pass establishes no executor function semantics, deployment ownership or new financial transfer. No further request or bytecode execution was attempted.
