style: Fix Rust code formatting

- Sort imports alphabetically (ExternalRtcAction, RtcCommands)
- Break long method chains for better readability
- Fixes CI formatting check failures

No functional changes - formatting only.

Author: Alex J Lennon

src/main.rs

@@ -479,7 +479,7 @@ async fn execute_command(
             }
         }
         Commands::Rtc(rtc_cmd) => {
-            use cli::{RtcCommands, ExternalRtcAction};
+            use cli::{ExternalRtcAction, RtcCommands};
             match rtc_cmd {
                 RtcCommands::Status => {
                     let response = controller.rtc_status().await?;

src/power/control.rs

@@ -194,13 +194,17 @@ impl PowerController {
     /// Configure external RTC interrupt action
     pub async fn rtc_config(&mut self, action: &str) -> Result<String> {
         info!("Configuring external RTC action: {}", action);
-        self.protocol.execute_power_command("rtc_config", action).await
+        self.protocol
+            .execute_power_command("rtc_config", action)
+            .await
     }
 
     /// Show external RTC interrupt configuration
     pub async fn rtc_show_config(&mut self) -> Result<String> {
         info!("Getting external RTC configuration");
-        self.protocol.execute_power_command("rtc_config", "status").await
+        self.protocol
+            .execute_power_command("rtc_config", "status")
+            .await
     }
 
     /// Parse power statistics response