Added documentation.

tests/command_test.rs

@@ -41,12 +41,12 @@ echo "Weather for $1: Sunny, 72°F"
     );
 
     let cmd_dir = CommandDir::new(temp.path());
-    let message = "!weather 73135";
+    let message = "!weather 10096";
 
     // Parse the message
     let (command_name, arg) = parse_bot_message(message).unwrap();
     assert_eq!(command_name, "weather");
-    assert_eq!(arg, "73135");
+    assert_eq!(arg, "10096");
 
     // Find and run the command
     let result = cmd_dir.run_command(command_name, arg).await;
@@ -54,7 +54,7 @@ echo "Weather for $1: Sunny, 72°F"
     assert!(result.is_ok());
     let bytes = result.unwrap();
     let output = String::from_utf8_lossy(&bytes);
-    assert!(output.contains("Weather for 73135"));
+    assert!(output.contains("Weather for 10096"));
     assert!(output.contains("Sunny"));
 }
 
@@ -253,7 +253,7 @@ echo "Why did the robot go on vacation? To recharge!"
 #[tokio::test]
 async fn test_non_bot_message_ignored() {
     // Messages not starting with ! should be ignored
-    let messages = ["hello world", "weather 73135", "?help", "/command", ""];
+    let messages = ["hello world", "weather 10096", "?help", "/command", ""];
 
     for message in messages {
         assert!(