fix(supervisor): keep advertisement checks clean

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

Author: TaylorMutch

crates/openshell-core/src/app_listener.rs

@@ -50,6 +50,12 @@ impl AppListenerConfig {
     }
 }
 
+/// A synchronous view of installed ingress, evaluated on the sandbox instance
+/// runtime. The requested lease must fit entirely within serving freshness.
+pub type InstallationSource = std::sync::Arc<
+    dyn Fn(std::time::Duration) -> crate::proto::SupervisorServiceAdvertisement + Send + Sync,
+>;
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -69,9 +75,3 @@ mod tests {
         assert!(config.validate().is_err());
     }
 }
-
-/// A synchronous view of installed ingress, evaluated on the sandbox instance
-/// runtime. The requested lease must fit entirely within serving freshness.
-pub type InstallationSource = std::sync::Arc<
-    dyn Fn(std::time::Duration) -> crate::proto::SupervisorServiceAdvertisement + Send + Sync,
->;

docs/how-it-works/gateways/configuration.mdx

@@ -1607,7 +1607,6 @@ the owning supervisor while preserving that hostname. Automatic discovery and
 application URL publication are separate work; current CLI URLs still identify
 the existing gateway path.
 
-
 Enabled supervisors report installed service routes through their authenticated
 gateway sessions. The gateway accepts only current configuration and ownership,
 resolves the supervisor endpoint through the compute driver, and expires