Single-player Seasons failed with "There was a problem communicating with the
FIFA Ultimate Team Servers". Two independent faults, both fixed:
1. The client never reached a season endpoint at all. It aborts on a
prerequisite web file, captured live by the deployed trace:
SEASONS_WEBFILE_URL: url="packs/loc/storepackdescriptions.en_us.xml"
SEASONS_STAGE1: status(+0x1c)=999 -> CACHE_PACKNAMES_FAILED
That is the hook's side (launcher 5294f58): the CDN base is empty in the
emulator, so the url stays relative and never reaches the POW content server
on 8085 that actually serves it.
2. `season/list` and `season/user` were not served. Only the EXACT tail
"season" was classified (as FeatureOffEmpty); every sub-path fell through to
Passthrough — the deliberately-dead Python upstream — so the mode could not
have worked even once the web file resolved.
Adds `fut::season_wire` with the reversed element schema (parser FUN_180167740,
stride 0x318; matches elements via FUN_180167fb0) and a `Route::Season` owning
`season…` for GET plus the state-storing PUT. Anything else still proxies rather
than being claimed without evidence.
Two things the types encode because getting them wrong is fatal:
* `matches` is NEVER empty. StartSeason (FUN_1800fc500) indexes
`matches[*(x+0x70)].teamId` off `elem+0x2e8`; an empty vector makes that a
NULL dereference and the client dies at CardsDLL+0xfc5b5. A full ten-round
schedule is emitted, with opponents drawn from team ids observed in this
client's own database.
* `type` MUST serialise before `divisionId`. `serde_json::Value` is a BTreeMap
here (no preserve_order), so `json!` sorts keys ALPHABETICALLY and emitted
divisionId first — caught by a test written for exactly this. The wire shapes
are therefore `#[derive(Serialize)]` structs (declaration order) rendered
straight to text via a new `json_text_status`, never round-tripped through
Value.
Verified on staging: season/list returns the ten-round OFFLINE season with
type before divisionId, season/user the round-1 position, history an empty
list, and the bare tail still {}.
Season progress is not yet persisted: the state-storing PUT is acknowledged
with {} (what the retail wire answers) rather than pretending a round advanced.