fix: resolve clippy warnings for strip_prefix, cast, and const assertions

Author: bimakw

src/middleware/auth_guard.rs

@@ -14,11 +14,5 @@ pub fn extract_token_from_header(req: &ServiceRequest) -> Option<String> {
     req.headers()
         .get("Authorization")
         .and_then(|h| h.to_str().ok())
-        .and_then(|h| {
-            if h.starts_with("Bearer ") {
-                Some(h[7..].to_string())
-            } else {
-                None
-            }
-        })
+        .and_then(|h| h.strip_prefix("Bearer ").map(|s| s.to_string()))
 }

src/services/lockout_service.rs

@@ -121,7 +121,7 @@ impl LockoutService {
                 .set_ex(
                     &lockout_key,
                     locked_until.to_string(),
-                    self.lockout_duration as u64,
+                    self.lockout_duration,
                 )
                 .await?;
 

src/services/totp_service.rs

@@ -474,25 +474,13 @@ mod tests {
 
     #[test]
     fn test_backup_code_count_is_reasonable() {
-        assert!(
-            BACKUP_CODE_COUNT >= 5,
-            "Should have at least 5 backup codes"
-        );
-        assert!(
-            BACKUP_CODE_COUNT <= 20,
-            "Should have at most 20 backup codes"
-        );
+        const _: () = assert!(BACKUP_CODE_COUNT >= 5, "Should have at least 5 backup codes");
+        const _: () = assert!(BACKUP_CODE_COUNT <= 20, "Should have at most 20 backup codes");
     }
 
     #[test]
     fn test_backup_code_length_is_reasonable() {
-        assert!(
-            BACKUP_CODE_LENGTH >= 6,
-            "Backup codes should be at least 6 chars"
-        );
-        assert!(
-            BACKUP_CODE_LENGTH <= 16,
-            "Backup codes should be at most 16 chars"
-        );
+        const _: () = assert!(BACKUP_CODE_LENGTH >= 6, "Backup codes should be at least 6 chars");
+        const _: () = assert!(BACKUP_CODE_LENGTH <= 16, "Backup codes should be at most 16 chars");
     }
 }