Fix code quality: trailing whitespace, unused imports, clippy warnings

- Fix trailing whitespace in kex.rs and s3.rs
- Add missing KexProposal import in kex_complete.rs
- Auto-fix clippy warnings across all crates
- All 153 tests pass

markbase-smb/src/main.rs

@@ -1,5 +1,7 @@
 use clap::Parser;
-use markbase_smb::{SMBConfig, SMBManager, AccessControlList, UserPermission, AuthManager, SMBMonitor};
+use markbase_smb::{
+    AccessControlList, AuthManager, SMBConfig, SMBManager, SMBMonitor, UserPermission,
+};
 
 #[derive(Parser)]
 #[command(name = "markbase-smb")]
@@ -16,34 +18,34 @@ enum Commands {
         /// Share name
         #[arg(short, long, default_value = "markbase")]
         name: String,
-        
+
         /// Path to share
         #[arg(short, long, default_value = "/Users/accusys/momentry/var/sftpgo/data")]
         path: String,
     },
-    
+
     /// Remove SMB share
     Remove {
         /// Share name
         #[arg(short, long)]
         name: String,
     },
-    
+
     /// List existing SMB shares
     List,
-    
+
     /// Show SMB status
     Status,
-    
+
     /// Manage user permissions
     User {
         #[command(subcommand)]
         action: UserCommands,
     },
-    
+
     /// Show monitoring stats
     Stats,
-    
+
     /// Show access logs
     Logs {
         /// Number of log entries to show
@@ -58,24 +60,24 @@ enum UserCommands {
     Add {
         #[arg(short, long)]
         username: String,
-        
+
         #[arg(short, long, default_value = "readonly")]
         permission: String,
     },
-    
+
     /// Remove user permission
     Remove {
         #[arg(short, long)]
         username: String,
     },
-    
+
     /// List all user permissions
     List,
 }
 
 fn main() -> anyhow::Result<()> {
     let cli = Cli::parse();
-    
+
     match cli.command {
         Commands::Create { name, path } => {
             let config = SMBConfig::new(name, path);
@@ -104,32 +106,33 @@ fn main() -> anyhow::Result<()> {
             let status = manager.status()?;
             println!("{}", serde_json::to_string_pretty(&status)?);
         }
-        Commands::User { action } => {
-            match action {
-                UserCommands::Add { username, permission } => {
-                    let acl = AccessControlList::new();
-                    let perm = match permission.as_str() {
-                        "readonly" => UserPermission::readonly(username),
-                        "full" => UserPermission::full_access(username),
-                        "admin" => UserPermission::admin(username),
-                        _ => UserPermission::readonly(username),
-                    };
-                    
-                    println!("User permission configuration:");
-                    println!("{}", serde_json::to_string_pretty(&perm)?);
-                    println!("\nTo apply, update system SMB configuration with this user.");
-                }
-                UserCommands::Remove { username } => {
-                    println!("Removing user '{}' from ACL", username);
-                    println!("To apply, update system SMB configuration.");
-                }
-                UserCommands::List => {
-                    let acl = AccessControlList::new();
-                    println!("Default ACL configuration:");
-                    println!("{}", serde_json::to_string_pretty(&acl)?);
-                }
+        Commands::User { action } => match action {
+            UserCommands::Add {
+                username,
+                permission,
+            } => {
+                let acl = AccessControlList::new();
+                let perm = match permission.as_str() {
+                    "readonly" => UserPermission::readonly(username),
+                    "full" => UserPermission::full_access(username),
+                    "admin" => UserPermission::admin(username),
+                    _ => UserPermission::readonly(username),
+                };
+
+                println!("User permission configuration:");
+                println!("{}", serde_json::to_string_pretty(&perm)?);
+                println!("\nTo apply, update system SMB configuration with this user.");
             }
-        }
+            UserCommands::Remove { username } => {
+                println!("Removing user '{}' from ACL", username);
+                println!("To apply, update system SMB configuration.");
+            }
+            UserCommands::List => {
+                let acl = AccessControlList::new();
+                println!("Default ACL configuration:");
+                println!("{}", serde_json::to_string_pretty(&acl)?);
+            }
+        },
         Commands::Stats => {
             let monitor = SMBMonitor::new();
             let stats = monitor.get_stats();
@@ -149,6 +152,6 @@ fn main() -> anyhow::Result<()> {
             }
         }
     }
-    
+
     Ok(())
-}
+}