fix(fifa17): carry observed rareflag so special cards render as specials

shape_item hardcoded rareflag=1, so all 1949 cards shaped as basic rare gold
regardless of type; informs/specials lost their card art. The dev fixture is
base-only, so this was invisible until the real profile (10 distinct rareflag
values) exposed it on .105.

rareflag is definition-level FIFA identity metadata OBSERVED from the profile
(the raw wire integer, never a guessed marketing label), so it lives in the
FIFA catalog like asset_id/version, not in generic Core:
- ObservedDefinition.rareflag + emitted into the production catalog entry.
- Fifa17CardCatalog RawCard/Fifa17CardIdentity gain rareflag (default 1 when a
  base-only catalog omits it, preserving prior wire behaviour).
- Fifa17Identity.rareflag; host resolver populates it from the catalog.
- shape_item emits id.rareflag instead of a hardcoded 1.

Verified on the real staged /club: wire rareflag distribution == source exactly
(0 per-item mismatches across 1949; e.g. rareflag 3 x591, 24 x302, 21 x256).
adapter 111 + host 24 + importer 25 tests green; clippy -D clean. rareflag lives
in the host catalog, not Core, so no re-import was needed.

openfut-import-fifa17/src/lib.rs

@@ -280,6 +280,10 @@ pub struct ObservedDefinition {
     /// pace, shooting, passing, dribbling, defending, physical (index 0..=5).
     pub attrs: [i64; 6],
     pub rarity: &'static str,
+    /// Observed FIFA wire `rareflag` (the card's rare/special TYPE, e.g. 3=inform,
+    /// 21..=24 = special programmes). Carried verbatim from the profile — the raw
+    /// integer, never a guessed marketing label — so specials render as specials.
+    pub rareflag: i64,
     /// Wire ids of the owned copies of this exact resourceId (preserved).
     pub wire_ids: Vec<i64>,
 }
@@ -508,6 +512,7 @@ pub fn plan_definitions(
             team_id,
             attrs: attrs6.unwrap(),
             rarity: tier(rating),
+            rareflag: f.rareflag.unwrap_or(1),
             wire_ids,
         });
     }
@@ -899,12 +904,12 @@ pub fn emit_content(
     let content_pack = content_dir.join("fifa17-production-cards.json");
     write_json_pretty(&content_pack, &defs)?;
 
-    // ---- PUBLIC: host identity catalog {card_id: {asset_id, version}} ----
+    // ---- PUBLIC: host identity catalog {card_id: {asset_id, version, rareflag}} ----
     let mut cards = serde_json::Map::new();
     for d in &report.definitions.supported {
         cards.insert(
             d.card_id.clone(),
-            serde_json::json!({ "asset_id": d.asset_id, "version": d.version }),
+            serde_json::json!({ "asset_id": d.asset_id, "version": d.version, "rareflag": d.rareflag }),
         );
     }
     let catalog = serde_json::json!({