fix(proxy): 修复 Clippy dead_code 与 too_many_arguments 警告

apps/aether-proxy/src/app.rs

@@ -233,6 +233,7 @@ pub async fn run(mut config: Config, servers: Vec<ServerEntry>) -> anyhow::Resul
     Ok(())
 }
 
+#[allow(clippy::too_many_arguments)]
 async fn spawn_registration_recovery_tasks(
     state: Arc<AppState>,
     server_contexts: Arc<Mutex<Vec<Arc<ServerContext>>>>,
@@ -272,6 +273,7 @@ async fn spawn_registration_recovery_tasks(
 
 /// Background task that retries registration for a single server until either
 /// registration succeeds or shutdown is requested.
+#[allow(clippy::too_many_arguments)]
 async fn retry_failed_registration(
     state: Arc<AppState>,
     server_contexts: Arc<Mutex<Vec<Arc<ServerContext>>>>,

apps/aether-proxy/src/config.rs

@@ -39,6 +39,7 @@ const DELEGATE_TO_UPSTREAM: &[(&str, &str)] = &[
 /// 307/308 redirects. Kept aligned with the current admin-side request size
 /// default, but exposed as an independent proxy transport budget.
 pub const DEFAULT_HEARTBEAT_INTERVAL_SECS: u64 = 30;
+#[allow(dead_code)]
 pub const DEFAULT_REDIRECT_REPLAY_BUDGET_BYTES: usize = 5_242_880;
 pub const DEFAULT_REDIRECT_REPLAY_BUDGET_HUMAN: &str = "5M";
 pub const DEFAULT_LOG_RETENTION_DAYS: u64 = 7;

apps/aether-proxy/src/tunnel/stream_handler.rs

@@ -362,6 +362,7 @@ fn resolve_redirect<B>(
     }
 }
 
+#[allow(clippy::too_many_arguments)]
 async fn execute_upstream_request(
     state: &AppState,
     server: &ServerContext,
@@ -455,6 +456,7 @@ async fn execute_upstream_request(
     })
 }
 
+#[allow(clippy::too_many_arguments)]
 async fn relay_upstream_response(
     server: &ServerContext,
     stream_id: u32,
@@ -577,6 +579,7 @@ async fn relay_upstream_response(
     Some(total_elapsed)
 }
 
+#[cfg(test)]
 fn upstream_client_for_request<'a>(
     state: &'a AppState,
     meta: &RequestMeta,