style(squad): rustfmt the squad-ext transport routes

Formatting-only follow-up to the squad-ext routes; no behavior change.
Pre-existing Core fmt drift elsewhere (e.g. app.rs route chain) predates
this branch (615c5fd is already not fmt-clean) and is intentionally left
untouched — not reformatting frozen Core beyond the squad-ext change.

src/routes/squad.rs

@@ -13,7 +13,8 @@ use crate::{
     models::squad::{SaveSquadRequest, SlotAssignment, SquadReplacement},
     services::{
         club as club_svc, profile as profile_svc, squad as squad_svc,
-        squad::SquadExtState, squad_rules::{ClientReportedEvaluation, DefaultSquadRules},
+        squad::SquadExtState,
+        squad_rules::{ClientReportedEvaluation, DefaultSquadRules},
     },
 };
 
@@ -104,7 +105,6 @@ fn squad_response(
     })
 }
 
-
 // ─────────── Game-extension-aware squad transport (host composition) ─────────
 //
 // These two routes expose the already-existing extension services
@@ -140,7 +140,10 @@ pub async fn get_squad_ext(
             "payload": row.payload,
             "stored_fingerprint": row.canonical_fingerprint,
         }),
-        SquadExtState::Stale { stored, current_fingerprint } => json!({
+        SquadExtState::Stale {
+            stored,
+            current_fingerprint,
+        } => json!({
             "state": "stale",
             "schema_version": stored.schema_version,
             "payload": stored.payload,
@@ -231,4 +234,4 @@ pub async fn put_squad_replace(
         "canonical_fingerprint": out.canonical_fingerprint,
         "slots_written": out.slots_written,
     })))
-}
+}