fix: 消除 clippy 1.96 告警(沙箱多余 cast/return、既有 sort_by→sort_by_key、cache …

crates/deep-code-agent/src/sandbox/linux.rs

@@ -40,22 +40,22 @@ const LANDLOCK_ABI: ABI = ABI::V1;
 /// Always-blocked syscalls (escape / privilege / host-tampering). Limited to
 /// numbers present on both x86_64 and aarch64.
 const DANGEROUS_SYSCALLS: &[i64] = &[
-    libc::SYS_ptrace as i64,
-    libc::SYS_mount as i64,
-    libc::SYS_umount2 as i64,
-    libc::SYS_pivot_root as i64,
-    libc::SYS_chroot as i64,
-    libc::SYS_reboot as i64,
-    libc::SYS_kexec_load as i64,
-    libc::SYS_init_module as i64,
-    libc::SYS_finit_module as i64,
-    libc::SYS_delete_module as i64,
-    libc::SYS_bpf as i64,
+    libc::SYS_ptrace,
+    libc::SYS_mount,
+    libc::SYS_umount2,
+    libc::SYS_pivot_root,
+    libc::SYS_chroot,
+    libc::SYS_reboot,
+    libc::SYS_kexec_load,
+    libc::SYS_init_module,
+    libc::SYS_finit_module,
+    libc::SYS_delete_module,
+    libc::SYS_bpf,
 ];
 
 /// Blocked when the policy forbids network. Denying `socket` stops any new
 /// socket (no network of any family); `connect` is belt-and-suspenders.
-const NETWORK_SYSCALLS: &[i64] = &[libc::SYS_socket as i64, libc::SYS_connect as i64];
+const NETWORK_SYSCALLS: &[i64] = &[libc::SYS_socket, libc::SYS_connect];
 
 /// Write-class access rights: everything Landlock can govern minus the
 /// read/execute rights, so reads stay unrestricted.

crates/deep-code-agent/src/sandbox/mod.rs

@@ -72,12 +72,12 @@ pub fn detect_capabilities() -> SandboxCapabilities {
 
     #[cfg(target_os = "linux")]
     {
-        return linux::capabilities();
+        linux::capabilities()
     }
 
     #[cfg(target_os = "windows")]
     {
-        return windows::capabilities();
+        windows::capabilities()
     }
 
     #[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]

crates/deep-code-agent/src/session_store/json.rs

@@ -149,7 +149,7 @@ impl SessionStore for JsonSessionStore {
             }
         }
 
-        records.sort_by(|left, right| right.updated_at_ms.cmp(&left.updated_at_ms));
+        records.sort_by_key(|record| std::cmp::Reverse(record.updated_at_ms));
         Ok(records)
     }
 

crates/deep-code-agent/src/subagent/manager.rs

@@ -72,7 +72,7 @@ impl SubAgentManager {
             .filter(|agent| agent.session_boot_id.as_deref() == Some(self.session_boot_id.as_str()))
             .cloned()
             .collect();
-        agents.sort_by(|left, right| right.started_at_ms.cmp(&left.started_at_ms));
+        agents.sort_by_key(|agent| std::cmp::Reverse(agent.started_at_ms));
         agents
     }
 

crates/deep-code-runtime/src/threads.rs

@@ -176,7 +176,7 @@ impl RuntimeThreadStore {
 
     pub async fn list_threads(&self) -> Vec<RuntimeThread> {
         let mut threads = self.inner.lock().await.threads.clone();
-        threads.sort_by(|left, right| right.updated_at_ms.cmp(&left.updated_at_ms));
+        threads.sort_by_key(|thread| std::cmp::Reverse(thread.updated_at_ms));
         threads
     }
 

crates/deep-code-tui/src/commands.rs

@@ -404,11 +404,9 @@ impl App {
 /// Cache hit rate as a percentage, or `None` when no prompt tokens were billed.
 pub(crate) fn cache_hit_percent(hit: u32, miss: u32) -> Option<u8> {
     let total = u64::from(hit) + u64::from(miss);
-    if total == 0 {
-        None
-    } else {
-        Some((u64::from(hit) * 100 / total) as u8)
-    }
+    (u64::from(hit) * 100)
+        .checked_div(total)
+        .map(|percent| percent as u8)
 }
 
 pub(crate) fn format_turn_telemetry(telemetry: &TurnTelemetry, currency: CostCurrency) -> String {