market: emit FIFA 17's own forSale itemState, not the oracle's listFS

Single-field protocol-correctness fix, deployed as a candidate for a live A/B.

`itemData.itemState: "listFS"` on the seller's own auction rows is not a FIFA 17
token at all: zero occurrences in `CardsDLL_Win64_retail.dll` (md5
4de3493131d7d2ff7f8b360c5ac9b655), zero in 4.26 GiB of live client memory, and it
decodes to -1 through `FUN_180166660` — so the client was handed an unrecognised
`CARD_OFFERSTATE`. FIFA 17's value for an item offered for sale is `forSale` (5),
from the 12-row table at 0x180229cc0.

Changed only where the invalid token was emitted: `handle_market_query`
(GET …/tradePile) and `handle_market_status` (GET …/trade/status). The market
search path already emitted `forSale` and is untouched — which is also why the
risk here was lower than it looked: the client has been decoding `forSale` on a
live route all along, and only the seller's own pile carried the bad value.

Wire A/B on the same expired row: EXACTLY one field differs. tradeId, tradeState,
expires, startingBid, buyNowPrice, currentBid, bidState, sellerName,
sellerEstablished, watched, coinsProcessed, the twelve-atom count and the whole
itemData card are byte-identical; coins unchanged at 29,843,976; Fix A's zero
`inactive` rows intact.

The differential asserted PARITY on this field and therefore passed while BOTH
sides were wrong — the exact mechanism by which the defect survived every run.
`market query tradePile` is now DIFFERENT-BY-DESIGN, pinning oracle == "listFS"
and rust == "forSale" so the divergence cannot silently close again. Where the
FIFA 17 binary contradicts the Python oracle, the binary wins.

Gates: 126 host tests, 214 adapter tests, fmt clean, clippy clean.

NOT claimed: that this preserves the list -> expire -> Return-to-Club lifecycle.
That needs an operator FIFA 17 session and has NOT been observed yet. Also not
claimed: anything about the Flash action gate — `CARD_OFFERSTATE` is one of three
still-confounded candidates and this change does not test it. Revert is one line
if the live test fails.

docs/FIFA17_TRANSFER_MARKET_WIRE.md

@@ -642,10 +642,43 @@ live on our listed row. FIFA 17's value for a listed item is `forSale` (5), from
 so does the Python oracle (`utas_server.py:3921`) — which is exactly why the
 differential never caught it: **oracle parity is necessary but not sufficient.**
 
-Deliberately NOT fixed in the same change: `CARD_OFFERSTATE` (itemState) is one of the
+### Fix B — `forSale` CANDIDATE DEPLOYED, live A/B outstanding (2026-08-17)
-three unresolved gate candidates, and every actionable row observed so far carried
+
-`itemState = −1`. Flipping it to `forSale` could perturb the one flow that currently
+Shipped as a code+deploy change, deliberately alone, and **not yet live-confirmed**.
-works (expired → Return to Club), so it ships alone and gets its own live A/B.
+
+| Claim | Status |
+|---|---|
+| `listFS` is not a FIFA 17 token and decodes to −1 | **CONFIRMED** (binary + 4.26 GiB process scan + live row) |
+| `forSale` is FIFA 17-native, value 5 | **CONFIRMED** (12-row table at `0x180229cc0`) |
+| Emitting `forSale` preserves the list → expire → Return-to-Club lifecycle | **NOT YET OBSERVED** — needs an operator FIFA 17 session |
+| `CARD_OFFERSTATE` is the Flash action-gate term | **STILL UNPROVEN** — this change does not test it |
+
+Wire A/B (`docs/evidence/market-lifecycle-2026-08-17/itemstate-forsale-ab.json`): on the
+same expired row, **exactly one field changed** — `itemState` `listFS` → `forSale`.
+`tradeId`, `tradeState`, `expires`, `startingBid`, `buyNowPrice`, `currentBid`,
+`bidState`, `sellerName`, `sellerEstablished`, `watched`, `coinsProcessed`, the atom
+count (12), and the whole `itemData` card are byte-identical; coins unchanged; Fix A's
+zero `inactive` rows intact.
+
+Risk was lower than it first appeared, for a reason worth recording: the market SEARCH
+route (`/transfermarket`) **already** emitted `forSale`, so the client has been decoding
+`forSale` (5) on a live path all along — only the seller's own pile carried the invalid
+token.
+
+Differential consequence: `market query tradePile` moves from `PARITY` to
+`DIFFERENT-BY-DESIGN`, pinning `oracle == "listFS"` and `rust == "forSale"` so the
+divergence stays visible. That assertion previously demanded parity and passed while
+**both** sides were wrong — the mechanism by which this defect survived every
+differential run. **Where the FIFA 17 binary contradicts the Python oracle, the binary
+wins.**
+
+Revert is one line if the live A/B fails: both `auction_record_as(l, "forSale")` calls in
+`market.rs` back to `"listFS"`, rebuild, restart `prod-host`. On failure the rule is to
+revert and go to the AVM1 gate work — NOT to compensate with another field change.
+
+**Claim boundary:** this is protocol correctness of one token. It is not evidence about
+the Flash decision tree; `STATE`, `CARD_OFFERSTATE` and `RESERVEDPRICE`/`MAX_CREDITS`
+remain confounded.
 
 ### Proving the gate (not yet done)
 

docs/evidence/market-lifecycle-2026-08-17/itemstate-forsale-ab.json

@@ -0,0 +1,75 @@
+{
+  "date": "2026-08-17",
+  "change": "itemData.itemState on the seller's own auction rows: listFS -> forSale",
+  "sites": [
+    "openfut-utas-host/src/market.rs handle_market_query (GET /tradePile)",
+    "openfut-utas-host/src/market.rs handle_market_status (GET /trade/status)"
+  ],
+  "why": {
+    "listFS": "not a FIFA 17 token: 0 occurrences in CardsDLL_Win64_retail.dll (md5 4de3493131d7d2ff7f8b360c5ac9b655), 0 in 4.26 GiB of live client memory, decodes to -1 via FUN_180166660",
+    "forSale": "FIFA 17 native, value 5, from the 12-row itemState table at 0x180229cc0",
+    "oracle": "the Python oracle emits listFS (utas_server.py:3921); the differential asserted PARITY and so passed while both sides were wrong"
+  },
+  "supporting_evidence_the_token_is_safe": "the market SEARCH route (/transfermarket) already emitted forSale before this change, so the client has been decoding forSale=5 on a live path all along",
+  "wire_ab": {
+    "baseline": {
+      "tradeId": 1000000155,
+      "tradeState": "expired",
+      "bidState": "none",
+      "expires": 0,
+      "startingBid": 150,
+      "buyNowPrice": 15000,
+      "currentBid": 0,
+      "sellerName": "CAGE",
+      "sellerEstablished": 1,
+      "watched": false,
+      "coinsProcessed": 0,
+      "atom_count": 12,
+      "itemState": "listFS",
+      "item_id": 100000155,
+      "resourceId": 158023,
+      "untradeable": false,
+      "rating": 93,
+      "preferredPosition": "RW"
+    },
+    "candidate": {
+      "tradeId": 1000000155,
+      "tradeState": "expired",
+      "bidState": "none",
+      "expires": 0,
+      "startingBid": 150,
+      "buyNowPrice": 15000,
+      "currentBid": 0,
+      "sellerName": "CAGE",
+      "sellerEstablished": 1,
+      "watched": false,
+      "coinsProcessed": 0,
+      "atom_count": 12,
+      "itemState": "forSale",
+      "item_id": 100000155,
+      "resourceId": 158023,
+      "untradeable": false,
+      "rating": 93,
+      "preferredPosition": "RW"
+    },
+    "fields_changed": [
+      "itemState"
+    ],
+    "fields_identical": 17,
+    "credits_before": 29843976,
+    "credits_after": 29843976,
+    "fix_a_inactive_rows_before": 0,
+    "fix_a_inactive_rows_after": 0
+  },
+  "offline_gates": {
+    "host_tests": "126 pass",
+    "adapter_tests": "214 pass",
+    "fmt": "clean",
+    "clippy": "clean",
+    "differential": "relabelled market-query tradePile PARITY -> DIFFERENT-BY-DESIGN; now pins oracle=listFS and rust=forSale so the divergence stays visible"
+  },
+  "status": "CANDIDATE DEPLOYED to prod-host, awaiting the live lifecycle A/B",
+  "live_status": "NOT YET OBSERVED \u2014 requires an operator FIFA 17 session",
+  "revert": "single-line: set both auction_record_as(l, \"forSale\") calls in market.rs back to \"listFS\", rebuild, hub restart prod-host",
+  "claim_boundary": "This validates PROTOCOL CORRECTNESS of the token only. It does NOT prove the Flash action-gate term; STATE / CARD_OFFERSTATE / RESERVEDPRICE+MAX_CREDITS remain confounded and the gate stays Category C / STRONGLY SUPPORTED / not proven."
+}

openfut-utas-host/src/market.rs

@@ -79,9 +79,14 @@ fn trade_id_from_path(path: &str) -> Option<String> {
 /// snapshot persisted at listing time; a row written before snapshots existed
 /// degrades to the stub (honest, not fabricated).
 ///
-/// `item_state` overrides the card's `itemState`: the seller's own pile uses
+/// `item_state` overrides the card's `itemState`. FIFA 17's vocabulary is the
-/// `listFS` (list-for-sale), market search results use `forSale` — the oracle
+/// 12-row `{const char*, int}` table at `0x180229cc0`, and `forSale` (5) is its
-/// distinguishes these, so the caller passes the one its screen needs.
+/// value for an item offered for sale. The Python oracle stamps `listFS` on the
+/// seller's own pile instead — a token that does NOT EXIST in FIFA 17 (zero
+/// occurrences in `CardsDLL_Win64_retail.dll`, zero in 4.26 GiB of live process
+/// memory) and therefore decodes to `-1` through `FUN_180166660`, i.e. the client
+/// is handed an unrecognised `CARD_OFFERSTATE`. Where the binary contradicts the
+/// oracle, the binary wins.
 fn auction_record_as(l: &Listing, item_state: &str) -> Value {
     let trade_id: i64 = l.listing_id.parse().unwrap_or(0);
     // resourceId is the FIFA wire identity the client listed (never the Core
@@ -380,9 +385,9 @@ pub async fn handle_market_list(
 /// Query listings in a given `state` (e.g. the user's own sale pile is the
 /// `active` set). Returns the oracle's tradePile shape.
 ///
-/// This is the SELLER's own pile, so each card carries `itemState: "listFS"`
+/// Each card carries `itemState: "forSale"` (5) — FIFA 17's own token for an item
-/// (list-for-sale) — the state the oracle stamps on a tradePile card, distinct
+/// offered for sale. The oracle's `listFS` is not a FIFA 17 value at all and
-/// from the `forSale` used for market search results.
+/// decoded to `-1`; see [`auction_record_as`].
 ///
 /// ONLY real auctions appear here. An item sitting in the trade pile with no
 /// auction is deliberately absent: `plan-2026-08-06-transfer-market.md:731-733`
@@ -406,7 +411,7 @@ pub async fn handle_market_query(
     };
     let auctions: Vec<Value> = listings
         .iter()
-        .map(|l| auction_record_as(l, "listFS"))
+        .map(|l| auction_record_as(l, "forSale"))
         .collect();
     // GetTradePile shares one deserializer (0x18013e7f0) with ISSearch and
     // ISWatchList, over exactly four members: `auctionInfo` (array), `credits`
@@ -495,7 +500,7 @@ pub async fn handle_market_status(
     };
     let auctions: Vec<Value> = listings
         .iter()
-        .map(|l| auction_record_as(l, "listFS"))
+        .map(|l| auction_record_as(l, "forSale"))
         .collect();
     eprintln!(
         "utas-host owner=RUST route=market-status requested={} returned={} query={}",
@@ -989,10 +994,14 @@ mod tests {
         assert_eq!(snap["rating"], 84);
         assert_eq!(snap["preferredPosition"], "ST");
         assert_eq!(snap["attributeList"].as_array().unwrap().len(), 6);
-        // tradePile embeds that full card and stamps the seller-pile state.
+        // tradePile embeds that full card and stamps the seller-pile state. This
+        // asserted `listFS` until FIFA17.exe disproved it: that token appears
+        // nowhere in CardsDLL or in 4.26 GiB of live process memory and decoded to
+        // -1, so the client was handed an unrecognised CARD_OFFERSTATE. `forSale`
+        // (5) is the value in FIFA 17's own itemState table.
         let pile = handle_market_query("active", &econ, &store).await;
         let rec = parse(&pile)["auctionInfo"][0].clone();
-        assert_eq!(rec["itemData"]["itemState"], "listFS");
+        assert_eq!(rec["itemData"]["itemState"], "forSale");
         assert_eq!(rec["itemData"]["rating"], 84);
         assert_eq!(rec["itemData"]["id"], 100004617i64);
         assert_eq!(rec["itemData"]["resourceId"], 169193);

openfut-utas-host/tests/economy_differential.rs

@@ -51,7 +51,12 @@
 //! | market list POST /ah   | PARITY             | 200; `{"id":<tradeId>}` (a positive listing id). Id SPACES   |
 //! |                        |                    | differ (Rust MarketStore vs oracle 900500000+seq) — a        |
 //! |                        |                    | wire-insignificant server-private handle.                    |
-//! | market query tradePile | PARITY             | after list -> `auctionInfo` len 1, `tradeState:"active"`.    |
+//! | market query tradePile | DIFFERENT-BY-DESIGN| after list -> `auctionInfo` len 1, `tradeState:"active"`.     |
+//! |                        |                    | ONE field diverges deliberately: `itemData.itemState`. The    |
+//! |                        |                    | oracle emits `listFS`, which does not exist in FIFA 17 (0 in  |
+//! |                        |                    | CardsDLL, 0 in 4.26 GiB of client memory) and decodes to -1;  |
+//! |                        |                    | Rust emits `forSale` (5), the client's own token. Parity here |
+//! |                        |                    | passed while BOTH were wrong, which is why it survived.       |
 //! | market buy POST /trade | DIFFERENT-BY-DESIGN| first buy debits exactly `buyNowPrice` & closes on BOTH, but |
 //! |                        |                    | Rust's MarketStore is STATEFUL single-debit (a second buy of |
 //! |                        |                    | a sold listing is a no-op: 0 delta, empty `auctionInfo`)     |
@@ -91,8 +96,8 @@
 
 use openfut_adapter_fifa17::fut::catalog::Fifa17CardCatalog;
 use openfut_adapter_fifa17::fut::entities::Fifa17Entities;
-use openfut_adapter_fifa17::fut::store_session::{SessionStore, StoreMode, SENTINEL_PACK_ID};
 use openfut_adapter_fifa17::fut::non_economy::PERSONA_DISPLAY_NAME;
+use openfut_adapter_fifa17::fut::store_session::{SessionStore, StoreMode, SENTINEL_PACK_ID};
 use openfut_identity::JsonIdentityStore;
 use openfut_utas_host::async_bridge::AsyncBridge;
 use openfut_utas_host::market_store::MarketStore;
@@ -942,15 +947,32 @@ fn run_differential(core_base: &str, oracle: &Oracle, dir: &std::path::Path) {
         "an active auction has positive seconds remaining"
     );
     // itemData must be the full shaped card on both sides; a stub cannot render.
+    //
+    // DELIBERATE DIVERGENCE — the one field on this route where the oracle is
+    // WRONG. It stamps `listFS`, which is not a FIFA 17 token at all: zero
+    // occurrences in `CardsDLL_Win64_retail.dll` (md5
+    // 4de3493131d7d2ff7f8b360c5ac9b655), zero in 4.26 GiB of live client memory,
+    // and it decodes to -1 through the itemState table walk, so the client is
+    // handed an unrecognised `CARD_OFFERSTATE`. FIFA 17's value for an item
+    // offered for sale is `forSale` (5), from the 12-row table at 0x180229cc0.
+    //
+    // This assertion used to demand parity, and passed while BOTH sides were
+    // wrong — the reason the defect survived every differential run. Oracle parity
+    // is necessary but not sufficient; where the binary contradicts the oracle,
+    // the binary wins.
     assert_eq!(
-        o_rec["itemData"]["itemState"], r_rec["itemData"]["itemState"],
+        o_rec["itemData"]["itemState"], "listFS",
-        "own-pile itemState parity (listFS)"
+        "pins what the oracle actually emits, so this divergence stays visible"
+    );
+    assert_eq!(
+        r_rec["itemData"]["itemState"], "forSale",
+        "Rust emits FIFA 17's own token, not the oracle's non-existent one"
     );
     assert!(
         r_rec["itemData"]["rating"].is_i64() && r_rec["itemData"]["attributeList"].is_array(),
         "rust tradePile itemData is the full card, not a stub"
     );
-    matrix.push(("market query tradePile", "PARITY"));
+    matrix.push(("market query tradePile", "DIFFERENT-BY-DESIGN"));
 
     // ── OP 13: market buy (POST /trade/<id>) — DIFFERENT-BY-DESIGN ─────────
     // Shared invariant: the first buy debits exactly buyNowPrice and closes the