fix: update Dockerfile, application properties, and controller mappings for health check and CORS support

backend/src/main/java/com/todo/backend/config/WebConfig.java

@@ -10,8 +10,7 @@ public class WebConfig implements WebMvcConfigurer {
     @Override
     public void addCorsMappings(CorsRegistry registry) {
         registry.addMapping("/**")
-                .allowedOrigins("http://localhost:5173", "http://localhost:3000", "http://localhost:8081",
-                        "http://localhost:80", "https://todo.almazlar.com") // Typical Vite/React/Docker ports
+                .allowedOrigins("http://localhost:5173", "https://todo.almazlar.com")
                 .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
                 .allowedHeaders("*")
                 .allowCredentials(true);

backend/src/main/java/com/todo/backend/controller/VersionController.java

@@ -10,7 +10,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 @RestController
-@RequestMapping("/api/version")
+@RequestMapping("/version")
 public class VersionController {
 
     @Value("${APP_VERSION:dev}")

backend/src/main/resources/application.properties

@@ -1,9 +1,11 @@
+# backend/src/main/resources/application.properties
+
 server.port=8082
 server.servlet.context-path=/api
 spring.application.name=backend
-spring.datasource.url=jdbc:postgresql://localhost:5432/tododb
-spring.datasource.username=postgres
-spring.datasource.password=postgres
+
 spring.jpa.hibernate.ddl-auto=update
 spring.jpa.show-sql=true
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
+management.endpoints.web.exposure.include=health,info,metrics
+management.endpoint.health.show-details=always