Found while implementing sale settlement, and reproduced before fixing:
sell_item(pool, "club", "item-x", 250)
-> Database(SqliteError { code: 787, message: "FOREIGN KEY constraint failed" })
squad_players.owned_card_id is a FK onto owned_cards(id) and db.rs enables
foreign_keys, so DELETEing an item that sits in any lineup is refused outright.
services::economy::sell_item never cleared the lineup, and this is the LIVE FIFA 17
quick-sell path (host economy_store -> econ.sell_item -> POST /economy/sell-item).
Selling a card that happens to be in your squad is ordinary, not an edge case.
sell_item now evicts the item from every lineup first, inside its existing
transaction, so a wrong-owner sale rolls the eviction back with everything else
(asserted, not assumed).
Also folds routes/cards.rs::delete_owned_card into the same authority. It
hand-rolled DELETE + club::add_coins directly on the pool, which had BOTH defects:
no transaction, so a failed credit destroyed the card for nothing, and the same
missing squad eviction. Its response shape is unchanged and the pre-existing route
test still passes.
Tests: selling_a_squadded_item_succeeds_and_frees_the_slot (the repro) and
a_rejected_quick_sell_leaves_the_lineup_intact. Core 55 lib + 123 integration pass,
clippy clean.
Not deployed — production is mid live-test.
funman300
637a21eac1