fix(core): 将错误日志输出改为统一的日志框架

- 使用 log::error 替换 eprintln! 进行错误日志记录

Author: fusheng357

src/main.rs

@@ -12,11 +12,11 @@ use flexi_logger::{
 fn main() {
     init_logger();
     if let Err(e) = OmegaCode::run() {
-        eprintln!("Application error: {}", e);
+        error!("Application error: {}", e);
         // Print full error chain
         let mut current = e.source();
         while let Some(cause) = current {
-            eprintln!("Caused by: {}", cause);
+            error!("Caused by: {}", cause);
             current = cause.source();
         }
         std::process::exit(1);

src/platform/mod.rs

@@ -36,7 +36,7 @@ macro_rules! app_dir {
         match $crate::platform::get_platform_app_dir() {
             Ok(dir) => dir,
             Err(e) => {
-                eprintln!("Failed to get app directory: {}", e);
+                error!("Failed to get app directory: {}", e);
                 std::process::exit(1);
             }
         }