style(sandbox): satisfy rustfmt and clippy doc_markdown

Match the pinned rustfmt (Rust 1.95.0) line-wrapping for the write_task_output
call, and backtick `legacy_read_only` in the qualification-report doc comment
so clippy::doc_markdown (-D warnings) passes.

Signed-off-by: Akram <akram.benaissi@gmail.com>

Author: akram

crates/openshell-sandbox/src/main.rs

@@ -146,8 +146,8 @@ struct QualificationReport {
     tcp_allow_round_trip: bool,
     tcp_deny_round_trip: bool,
     wait_killable_recv: bool,
-    /// Selected seccomp listener cancellation mode: "killable" (>= 5.19) or
-    /// "legacy_read_only" (< 5.19, broker output writes disabled).
+    /// Selected seccomp listener cancellation mode: `killable` (>= 5.19) or
+    /// `legacy_read_only` (< 5.19, broker output writes disabled).
     seccomp_listener_mode: &'static str,
     /// Whether the broker disables task-memory output writes (legacy mode).
     task_memory_writes_disabled: bool,

crates/openshell-sandbox/src/network_broker.rs

@@ -1698,7 +1698,12 @@ fn write_socket_addr(
     if copied != 0 {
         listener.write_task_output(notification_id, tid, address, &bytes[..copied])?;
     }
-    listener.write_task_output(notification_id, tid, length_address, &actual_length.to_ne_bytes())
+    listener.write_task_output(
+        notification_id,
+        tid,
+        length_address,
+        &actual_length.to_ne_bytes(),
+    )
 }
 
 fn sockaddr_bytes(address: SocketAddr) -> io::Result<(Vec<u8>, libc::socklen_t)> {