feat: add Swagger/OpenAPI documentation

src/main/java/com/example/bankcards/config/SecurityConfig.java

@@ -4,7 +4,6 @@ import com.example.bankcards.security.JwtAuthenticationFilter;
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.http.HttpMethod;
 import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.authentication.AuthenticationProvider;
 import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
@@ -38,6 +37,12 @@ public class SecurityConfig {
                 auth
                     .requestMatchers("/api/auth/**")
                     .permitAll()
+                    .requestMatchers(
+                        "/swagger-ui/**",
+                        "/v3/api-docs/**",
+                        "/swagger-ui.html"
+                    )
+                    .permitAll()
                     .requestMatchers("/api/admin/**")
                     .hasAuthority("ROLE_ADMIN")
                     .anyRequest()