feat: add restriction clippy lints

sequencer_runner/src/lib.rs

@@ -40,6 +40,10 @@ impl SequencerHandle {
     /// Runs the sequencer indefinitely, monitoring its tasks.
     ///
     /// If no error occurs, this function will never return.
+    #[expect(
+        clippy::integer_division_remainder_used,
+        reason = "Generated by select! macro, can't be easily rewritten to avoid this lint"
+    )]
     pub async fn run_forever(&mut self) -> Result<Never> {
         let Self {
             addr: _,
@@ -292,9 +296,10 @@ pub async fn main_runner() -> Result<()> {
 
     let app_config = SequencerConfig::from_path(&home_dir.join("sequencer_config.json"))?;
 
-    if let Some(ref rust_log) = app_config.override_rust_log {
+    if let Some(rust_log) = &app_config.override_rust_log {
         info!("RUST_LOG env var set to {rust_log:?}");
 
+        // SAFETY: there is no other threads running at this point
         unsafe {
             std::env::set_var(RUST_LOG, rust_log);
         }