chore: improve keybind handling and debugging output

1. Add #[allow(dead_code)] attribute for ButtonConfig.label field to
suppress warnings
2. Add detailed debug printing of loaded keybind configurations
3. Implement proper Unicode character handling for keybind matching
4. Add fallback to key name matching for non-character keys
5. Include additional context in trigger debug logs

chore: 改进按键绑定处理和调试输出

1. 为 ButtonConfig.label 字段添加 #[allow(dead_code)] 属性以抑制警告
2. 添加对加载的按键绑定配置的详细调试打印
3. 实现正确的 Unicode 字符处理用于按键绑定匹配
4. 对非字符键添加键名匹配的回退机制
5. 在触发日志中包含更多上下文信息

Author: wineee

src/config.rs

@@ -2,6 +2,7 @@ use std::process::Command;
 
 #[derive(Debug, Clone)]
 pub struct ButtonConfig {
+    #[allow(dead_code)]
     pub label: String,
     pub action: String,
     pub text: String,

src/main.rs

@@ -53,6 +53,16 @@ impl SimpleComponent for App {
 
         // Load configuration
         let config = Config::load_from_kdl().expect("Failed to load configuration");
+        
+        // Debug: print loaded keybinds
+        println!("Loaded keybinds:");
+        for button_config in &config.buttons {
+            println!("  '{}' -> {} ({})", 
+                     button_config.keybind, 
+                     button_config.text, 
+                     button_config.action);
+        }
+        
         let model = App { config };
 
         // Create dynamic UI based on configuration
@@ -101,12 +111,26 @@ impl SimpleComponent for App {
             if key == gdk::Key::Escape {
                 sender_clone.input(AppInput::Quit);
             } else {
-                // Check for keybind matches
-                let key_name = key.name().unwrap_or_default().to_lowercase();
-                for button_config in &config_clone {
-                    if button_config.keybind.to_lowercase() == key_name {
-                        sender_clone.input(AppInput::ExecuteAction(button_config.action.clone()));
-                        break;
+                // Check for keybind matches using keyval
+                let key_char = key.to_unicode();
+                if let Some(ch) = key_char {
+                    let key_str = ch.to_lowercase().to_string();
+                    for button_config in &config_clone {
+                        if button_config.keybind.to_lowercase() == key_str {
+                            println!("Triggered keybind '{}' for action: {}", button_config.keybind, button_config.action);
+                            sender_clone.input(AppInput::ExecuteAction(button_config.action.clone()));
+                            break;
+                        }
+                    }
+                } else {
+                    // 对于非字符键，使用键名匹配
+                    let key_name = key.name().unwrap_or_default().to_lowercase();
+                    for button_config in &config_clone {
+                        if button_config.keybind.to_lowercase() == key_name {
+                            println!("Triggered keybind '{}' for action: {}", button_config.keybind, button_config.action);
+                            sender_clone.input(AppInput::ExecuteAction(button_config.action.clone()));
+                            break;
+                        }
                     }
                 }
             }