style: cargo fmt for v1.7.99-alpha release gate

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

core/archipelago/src/api/handler/content.rs

@@ -159,10 +159,7 @@ impl ApiHandler {
     /// Seller side (#46): mint a Lightning invoice for a paid catalog item so a
     /// buyer can pay from any external wallet. Path: GET /content/{id}/invoice.
     /// Records a pending entitlement keyed by the invoice's payment hash.
-    pub(super) async fn handle_content_invoice(
-        &self,
-        path: &str,
-    ) -> Result<Response<hyper::Body>> {
+    pub(super) async fn handle_content_invoice(&self, path: &str) -> Result<Response<hyper::Body>> {
         let content_id = path
             .strip_prefix("/content/")
             .and_then(|s| s.strip_suffix("/invoice"))
@@ -295,10 +292,7 @@ impl ApiHandler {
     /// Seller side (#46): issue a fresh on-chain address for a paid catalog item
     /// so a buyer can pay on-chain. Path: GET /content/{id}/onchain. Records a
     /// pending entitlement keyed by the address; price doubles as expected amount.
-    pub(super) async fn handle_content_onchain(
-        &self,
-        path: &str,
-    ) -> Result<Response<hyper::Body>> {
+    pub(super) async fn handle_content_onchain(&self, path: &str) -> Result<Response<hyper::Body>> {
         let content_id = path
             .strip_prefix("/content/")
             .and_then(|s| s.strip_suffix("/onchain"))