Adds trade_gate_probe.py (read-only: /proc/<pid>/mem O_RDONLY + pread, slide proven
against the on-disk FNV prologue), extending gate_byte_probe.py to vtable slot
+0x270 exactly as the transfer-market analysis asked for.
Measured: IS_TRADING_ENABLED=1 (was 0 in the Python era), TRADE_PILE_SIZE=100
(was 0), watchListSize=50 (was 0), with four controls reading 1. So every
CardsDLL-supplied input that analysis named as a market blocker is now OPEN, which
the Rust host achieves by construction -- it emits userInfo.feature as {} so the
kill switch at 0x180174f19 never arms, and it already sends pileSizeClientData
keys 2 and 4.
This narrows the Actions-panel question to the exe-side UI script term, and rules
out ownership fields, the gate bytes, the cancel route and the state vocabularies
as candidates -- each on measured or PE-derived evidence rather than inference.
Records the auction-record field set, route spellings, pile encoding and the four
open UNKNOWNs so future agents neither reopen settled questions nor re-guess enum
values. Each claim tagged CONFIRMED / FIFA17-HISTORICAL / INFERRED / UNKNOWN.
Captures the key methodological lesson: oracle parity is necessary but NOT
sufficient for a flow the oracle itself never served -- our auction record matched
the oracle key-for-key while both omitted the FIFA 17 ownership fields.
funman300