fix(import-fifa17): carry the fields a consumable needs to exist

Two defects that together made the club's 17 owned consumables invisible while
club/stats still counted them — the count gate promised 17, the item route
served 0.

1. The catalog omitted `card_asset_id`, `amount`, `contract` and `rating` for
   non-player definitions. Without an art id the adapter refuses to emit the
   card (it would draw the notfound box), and the families that read
   `amount`/`contract` would render "-1" or grant nothing. All four values are
   present in the source wire and were simply dropped on the way out.

2. Owned rows were imported without a `content_kind`, and Core defaults an
   unstated row to `player` — durably recording a fitness coach and a contract
   card as players in the ownership authority, even though the catalog-driven
   wire looked right.

These are definition-level fields, so every owned copy must agree; a group that
disagrees is deferred rather than resolved by taking the first copy's value.
Measured on the real profile: observed `amount` equals the `fcc_*` table row for
every consumable that carries one (1, 2, 4, 5, 10, 15), and a wire omission
corresponds to a table amount of 0. It is therefore NOT a stack count — two
copies of 5003068 are two instances — so the import states no `quantity` at all.

openfut-import-fifa17/src/apply.rs

@@ -70,6 +70,11 @@ pub struct GenericClub {
 pub struct GenericOwned {
     pub owned_item_id: String,
     pub card_id: String,
+    /// Generic classification for Core's ownership row. FIFA17 is the only side
+    /// that can map `cardsubtypeid` onto this, and Core defaults to `player`, so
+    /// leaving it off would durably record a coach or a contract card as a
+    /// player — wrong in the ownership authority even when the wire looks right.
+    pub content_kind: &'static str,
 }
 
 #[derive(Debug, Serialize)]
@@ -174,6 +179,7 @@ pub fn plan_apply(
             owned.push(GenericOwned {
                 owned_item_id: core_id.clone(),
                 card_id: def.card_id.clone(),
+                content_kind: "player",
             });
             mappings.push(IdentityMapping {
                 core_id,
@@ -191,6 +197,7 @@ pub fn plan_apply(
             owned.push(GenericOwned {
                 owned_item_id: core_id.clone(),
                 card_id: def.card_id.clone(),
+                content_kind: def.kind.as_str(),
             });
             mappings.push(IdentityMapping {
                 core_id,