docs(evidence): capture full-length UTAS responses + userMassInfo envelope

Fix extractor truncation (bound each HTTP message by Content-Length): userMassInfo
(8 KB) and purchasegroup responses are now complete in the committed corpus, not
cut at 4 KB. Document the userMassInfo envelope contract (target shape for a future
full-Rust migration; needs the clubAbbr/established account triad Core lacks).

docs/evidence/live-captures-2026-08-15/README.md

@@ -49,6 +49,15 @@ The `mypacks` group carries the synthetic sentinel pack when My Packs is empty:
 ```
 Client renders empty My Packs AS Browse Packs (no crash) — the bug-6c resolver guard.
 
+### GET /ut/game/fifa17/userMassInfo  (RUST_OVERLAY hybrid, full 8 KB envelope captured)
+The complete envelope is in `utas-responses.sanitised.txt`: root `pileSizeClientData` +
+`userInfo` (with `clubName`, `clubAbbr`, `established`, `accountCreatedPlatformName`,
+`currencies` [Core coins overlaid by Rust], `won/draw/loss`, `clubNameChangeAllowed`,
+`divisionOffline/Online`, `purchased`, `feature`, `reliability`, `bidTokens`, `trophies`,
+`sessionCoinsBankBalance`, `actives`, `squadList`). Field spec is authoritative in
+`fifa17-recon/tools/utas_server.py::user_info()`. This is the target shape for a future
+full-Rust userMassInfo (needs the `clubAbbr`/`established` account triad, which Core lacks).
+
 ### Other captured request lines
 `POST /ut/auth`, `GET user/accountinfo`, `GET settings`, `GET phishing/trusteddevice`,
 `PUT match/reset`, `GET userMassInfo`, `PUT clientdata/userHubData`,

docs/evidence/live-captures-2026-08-15/utas-requests.sanitised.txt

@@ -43,14 +43,6 @@ Content-Type: application/json
 X-UT-SID: <SID>
 Accept-Encoding: gzip
 
-GET /ut/game/fifa17/phishing/trusteddevice?deviceId=<DEV> HTTP/1.1
-Host: 10.10.0.121:8099
-User-Agent: ProtoHttp 1.3/DS 15.1.2.1.0 (Windows)
-Accept: application/json
-Content-Type: application/json
-X-UT-SID: <SID>
-Accept-Encoding: gzip
-
 
 
 ---
@@ -75,14 +67,6 @@ Accept: application/json
 Content-Type: application/json
 X-UT-SID: <SID>
 
-GET /ut/game/fifa17/userMassInfo HTTP/1.1
-Host: 10.10.0.121:8099
-User-Agent: ProtoHttp 1.3/DS 15.1.2.1.0 (Windows)
-Accept: application/json
-Content-Type: application/json
-X-UT-SID: <SID>
-Accept-Encoding: gzip
-
 
 
 ---
@@ -107,15 +91,7 @@ Accept: application/json
 Content-Type: application/json
 X-UT-SID: <SID>
 
-{"state":"TRANSACTIONCANCEL"}GET /ut/game/fifa17/hub HTTP/1.1
-Host: 10.10.0.121:8099
-User-Agent: ProtoHttp 1.3/DS 15.1.2.1.0 (Windows)
-Accept: application/json
-Content-Type: application/json
-X-UT-SID: <SID>
-Accept-Encoding: gzip
-
-
+{"state":"TRANSACTIONCANCEL"}
 
 ---
 
@@ -127,23 +103,7 @@ Accept: application/json
 Content-Type: application/json
 X-UT-SID: <SID>
 
-{"entries":[{"key":0,"value":0},{"key":1,"value":1}]}GET /ut/game/fifa17/user/credits HTTP/1.1
-Host: 10.10.0.121:8099
-User-Agent: ProtoHttp 1.3/DS 15.1.2.1.0 (Windows)
-Accept: application/json
-Content-Type: application/json
-X-UT-SID: <SID>
-Accept-Encoding: gzip
-
-GET /ut/game/fifa17/store/purchasegroup/all?ppInfo=true HTTP/1.1
-Host: 10.10.0.121:8099
-User-Agent: ProtoHttp 1.3/DS 15.1.2.1.0 (Windows)
-Accept: application/json
-Content-Type: application/json
-X-UT-SID: <SID>
-Accept-Encoding: gzip
-
-
+{"entries":[{"key":0,"value":0},{"key":1,"value":1}]}
 
 ---