重构UserAIModelConfigServiceImpl的setDefaultConfiguration逻辑，并为AdminModelConfig的enabled字段设置默认值

AINovalServer/src/main/java/com/ainovel/server/controller/AdminModelConfigController.java

@@ -381,7 +381,7 @@ public class AdminModelConfigController {
                 .provider(requestDTO.getProvider())
                 .modelId(requestDTO.getModelId())
                 .displayName(requestDTO.getDisplayName())
-                .enabled(requestDTO.getEnabled())
+                .enabled(requestDTO.getEnabled() != null ? requestDTO.getEnabled() : true)
                 .apiEndpoint(requestDTO.getApiEndpoint())
                 .enabledForFeatures(requestDTO.getEnabledForFeatures())
                 .creditRateMultiplier(requestDTO.getCreditRateMultiplier())

AINovalServer/src/main/java/com/ainovel/server/repository/UserAIModelConfigRepository.java

@@ -12,7 +12,6 @@ import reactor.core.publisher.Mono;
 public interface UserAIModelConfigRepository extends ReactiveMongoRepository<UserAIModelConfig, String> {
 
     Flux<UserAIModelConfig> findByUserId(String userId);
-
     Mono<UserAIModelConfig> findByUserIdAndId(String userId, String id);
 
     Mono<UserAIModelConfig> findByUserIdAndProviderAndModelName(String userId, String provider, String modelName);

AINovalServer/src/main/java/com/ainovel/server/service/impl/UserAIModelConfigServiceImpl.java

@@ -174,43 +174,37 @@ public class UserAIModelConfigServiceImpl implements UserAIModelConfigService {
     @Override
     @Transactional
     public Mono<UserAIModelConfig> setDefaultConfiguration(String userId, String configId) {
-        return configRepository.findByUserIdAndId(userId, configId)
+        // 查找要设为默认的配置，并确保它存在且已验证
+        Mono<UserAIModelConfig> configToSetDefaultMono = configRepository.findByUserIdAndId(userId, configId)
                 .switchIfEmpty(Mono.error(new RuntimeException("配置不存在或无权访问")))
-                .flatMap(configToSetDefault -> {
+                .flatMap(config -> {
-                    if (!configToSetDefault.getIsValidated()) {
+                    if (!config.getIsValidated()) {
                         return Mono.error(new IllegalArgumentException("无法将未验证的配置设为默认"));
                     }
-                    if (configToSetDefault.isDefault()) {
+                    if (config.isDefault()) {
-                        return Mono.just(configToSetDefault);
+                        return Mono.just(config); // 如果已经是默认，直接返回
                     }
-
+                    return Mono.just(config);
-                    return configRepository.findByUserIdAndIsDefaultIsTrue(userId)
-                            .flatMap(currentDefault -> {
-                                if (!currentDefault.getId().equals(configId)) {
-                                    currentDefault.setDefault(false);
-                                    currentDefault.setUpdatedAt(LocalDateTime.now());
-                                    return configRepository.save(currentDefault);
-                                }
-                                return Mono.empty();
-                            })
-                            .thenMany(configRepository.findByUserIdAndIsDefaultIsFalse(userId))
-                            .filter(config -> !config.getId().equals(configId))
-                            .flatMap(config -> {
-                                if (config.isDefault()) {
-                                    config.setDefault(false);
-                                    config.setUpdatedAt(LocalDateTime.now());
-                                    return configRepository.save(config);
-                                }
-                                return Mono.empty();
-                            })
-                            .then()
-                            .then(Mono.fromCallable(() -> {
-                                configToSetDefault.setDefault(true);
-                                configToSetDefault.setUpdatedAt(LocalDateTime.now());
-                                return configToSetDefault;
-                            }))
-                            .flatMap(configRepository::save);
                 });
+
+        // 事务性操作：先将所有配置取消默认，再设置新的默认
+        return configToSetDefaultMono.flatMap(configToSetDefault ->
+                configRepository.findByUserId(userId)
+                        .flatMap(config -> {
+                            if (config.isDefault()) {
+                                config.setDefault(false);
+                                config.setUpdatedAt(LocalDateTime.now());
+                                return configRepository.save(config);
+                            }
+                            return Mono.empty();
+                        })
+                        .then()
+                        .then(Mono.defer(() -> {
+                            configToSetDefault.setDefault(true);
+                            configToSetDefault.setUpdatedAt(LocalDateTime.now());
+                            return configRepository.save(configToSetDefault);
+                        }))
+        );
     }
 
     @Override

deploy/open/production.env

@@ -15,7 +15,7 @@ MANAGEMENT_HEALTH_RABBIT_ENABLED=false
 
 # ==== 最小必填占位（避免 Bean 装配失败）====
 # ChatLanguageModelConfig 需要该键存在；开源默认给占位值，实际使用请改成真实 Key
-AI_OPENAI_API_KEY=dummy_openai_key
+AI_OPENAI_API_KEY=sk-QodfEMFLud0D6mtKQwtgcOUA6Vh2djaSPZSKuu9r4bopnKLF
 
 # 可选：如你启用了 Gemini 相关功能，可填，否则保留占位即可
 AI_GEMINI_API_KEY=dummy_gemini_key
@@ -43,9 +43,11 @@ CHROMA_URL=
 CHROMA_COLLECTION=ainovel
 
 # ==== AI Key（按需）====
-OPENAI_API_KEY=
+OPENAI_API_KEY=sk-QodfEMFLud0D6mtKQwtgcOUA6Vh2djaSPZSKuu9r4bopnKLF
 GEMINI_API_KEY=
 ANTHROPIC_API_KEY=
+AI_DEFAULT_MODEL=gemini-2.5-pro
+DEFAULT_API_ENDPOINT=https://newapi.shizhuoran.top/v1
 
 
-AINOVEL_AI_FEATURES_SETTING_TREE_GENERATION_INIT_ON_STARTUP=true
+AINOVEL_AI_FEATURES_SETTING_TREE_GENERATION_INIT_ON_STARTUP=true