feat：增加前端cors配置

src/main/java/com/guo/learningprogresstracker/config/WebCorsConfig.java

@@ -1,17 +1,22 @@
 package com.guo.learningprogresstracker.config;
 
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.config.annotation.CorsRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 @Configuration
 public class WebCorsConfig implements WebMvcConfigurer {
+
+    @Value("${cors.allowed-origins}")
+    private String[] allowedOrigins; // 支持多个Origin配置
+
     @Override
     public void addCorsMappings(CorsRegistry registry) {
-        registry.addMapping("/**")  // 配置所有路径
-            .allowedOrigins("http://localhost:5173")
-            .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
-            .allowedHeaders("*")
-            .allowCredentials(true);
+        registry.addMapping("/**")
+                .allowedOrigins(allowedOrigins)
+                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
+                .allowedHeaders("*")
+                .allowCredentials(true);
     }
 }