fix(model-config): AI 大模型配置管理全面排查修复（20 项）

后端修复：
- 修复 updateConfig 激活逻辑竞态条件：appType 变更时只停用目标类型的活跃配置
- 修复 getConfigDetail 直接修改 MyBatis 缓存实体的安全隐患，改为防御性拷贝
- 修复 persistExtraConfig 异常被静默吞掉的问题，改为抛出异常触发事务回滚
- 修复 deleteConfig 缺失 @Transactional 注解
- 修复 updatePriority 未校验配置存在性
- 修复 updateConfig 空 apiKey（trim 后）会覆盖已有值的问题
- createConfig 增加 provider 字段非空校验
- 导入接口增加 100 条数据量限制，导出接口移除 maskApiKey 参数强制脱敏
- ChatModelFactory.testConnection 使用专用线程池替代 ForkJoinPool.commonPool
- EmbeddingModelFactory RetryTemplate 显式设置最大重试次数
- ModelConfigLoader 增加 RERANK 类型启动校验
- RERANK 健康状态从误报 ONLINE 改为 UNKNOWN
- listConfigs 从原生 SQL 重构为 MyBatis Plus LambdaQueryWrapper

前端修复：
- 新建模式切换提供商时始终重置 model_name 为新提供商默认模型
- 编辑模式切换提供商时清理不属于新提供商的无效 model_name
- extraConfig 始终发送（含空对象），确保后端能清空已废弃的高级参数
- 关闭导入弹窗时重置预览和结果状态
- 健康看板支持 UNKNOWN 状态（🟡 未检测）展示

src/main/java/com/wok/supportbot/config/ChatModelFactory.java

@@ -22,6 +22,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 
 /**
@@ -237,6 +239,9 @@ public class ChatModelFactory {
     /** 连接测试超时时间（秒） */
     private static final int TEST_CONNECTION_TIMEOUT_SECONDS = 10;
 
+    /** 连接测试专用线程池，避免占用 ForkJoinPool.commonPool() */
+    private final ExecutorService testConnectionExecutor = Executors.newFixedThreadPool(3);
+
     /**
      * 测试指定配置的连接可用性
      * 创建临时 ChatModel（不走缓存），发送一条简单 prompt 验证 API Key 和模型是否可用
@@ -270,7 +275,7 @@ public class ChatModelFactory {
                     result.put("errorMessage", e.getMessage());
                 }
                 return result;
-            });
+            }, testConnectionExecutor);
             return future.get(TEST_CONNECTION_TIMEOUT_SECONDS, TimeUnit.SECONDS);
         } catch (java.util.concurrent.TimeoutException e) {
             Map<String, Object> result = new LinkedHashMap<>();

src/main/java/com/wok/supportbot/config/EmbeddingModelFactory.java

@@ -205,6 +205,8 @@ public class EmbeddingModelFactory {
      */
     private RetryTemplate createRetryTemplate() {
         RetryTemplate retryTemplate = new RetryTemplate();
+        // 显式设置最大重试次数，避免依赖隐式默认值
+        retryTemplate.setRetryPolicy(new org.springframework.retry.policy.SimpleRetryPolicy(3));
         ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
         backOffPolicy.setInitialInterval(1000);
         backOffPolicy.setMultiplier(2);

src/main/java/com/wok/supportbot/config/ModelConfigLoader.java

@@ -30,6 +30,7 @@ public class ModelConfigLoader implements ApplicationListener<ApplicationReadyEv
             checkAppTypeConfig("CHAT");
             checkAppTypeConfig("EMBEDDING");
             checkAppTypeConfig("RAG_REWRITE");
+            checkAppTypeConfig("RERANK");
             log.info("========== AI 模型配置校验完成 ==========");
         } catch (Exception e) {
             log.warn("模型配置校验异常（不影响启动）: {}", e.getMessage());

src/main/java/com/wok/supportbot/config/ModelHealthService.java

@@ -125,7 +125,8 @@ public class ModelHealthService {
                 return embeddingModelFactory.testConnection(config);
             } else if ("RERANK".equals(appType)) {
                 // RERANK 暂无通用测试方式，标记为 UNKNOWN
-                return Map.of("success", true, "latencyMs", 0);
+                return Map.of("success", false, "status", "UNKNOWN",
+                        "errorMessage", "RERANK 类型暂不支持自动探活");
             } else {
                 // CHAT / RAG_REWRITE
                 return chatModelFactory.testConnection(config);
@@ -140,7 +141,13 @@ public class ModelHealthService {
      */
     private void updateHealthStatus(Long configId, Map<String, Object> result) {
         HealthStatus status = new HealthStatus();
-        status.setStatus(Boolean.TRUE.equals(result.get("success")) ? "ONLINE" : "OFFLINE");
+        // 支持显式 UNKNOWN 状态（如 RERANK 类型暂不支持探活）
+        Object explicitStatus = result.get("status");
+        if ("UNKNOWN".equals(explicitStatus)) {
+            status.setStatus("UNKNOWN");
+        } else {
+            status.setStatus(Boolean.TRUE.equals(result.get("success")) ? "ONLINE" : "OFFLINE");
+        }
         Object latency = result.get("latencyMs");
         status.setLatencyMs(latency instanceof Number ? ((Number) latency).longValue() : null);
         status.setLastCheckTime(new Date());
@@ -204,9 +211,11 @@ public class ModelHealthService {
         // 添加汇总统计
         long online = healthCache.values().stream().filter(s -> "ONLINE".equals(s.getStatus())).count();
         long offline = healthCache.values().stream().filter(s -> "OFFLINE".equals(s.getStatus())).count();
+        long unknown = healthCache.values().stream().filter(s -> "UNKNOWN".equals(s.getStatus())).count();
         Map<String, Object> summary = new LinkedHashMap<>();
         summary.put("online", online);
         summary.put("offline", offline);
+        summary.put("unknown", unknown);
         summary.put("total", (long) healthCache.size());
         result.put("_summary", summary);
 

src/main/java/com/wok/supportbot/controller/AiModelConfigController.java

@@ -173,6 +173,12 @@ public class AiModelConfigController {
                         "message", "API Key 不能为空"
                 ));
             }
+            if (config.getProvider() == null || config.getProvider().trim().isEmpty()) {
+                return ResponseEntity.badRequest().body(Map.of(
+                        "success", false,
+                        "message", "提供商不能为空"
+                ));
+            }
 
             AiModelConfig created = aiModelConfigService.createConfig(config);
             refreshCache();
@@ -435,16 +441,13 @@ public class AiModelConfigController {
     // ==================== F7: 配置导入/导出 ====================
 
     /**
-     * 导出所有配置为 JSON
-     *
-     * @param maskApiKey 是否脱敏 API Key（默认 true）
+     * 导出所有配置为 JSON（API Key 始终脱敏）
      */
     @GetMapping("/model-config/export")
     @PreAuthorize("hasRole('admin')")
-    public ResponseEntity<Map<String, Object>> exportConfigs(
-            @RequestParam(defaultValue = "true") boolean maskApiKey) {
+    public ResponseEntity<Map<String, Object>> exportConfigs() {
         try {
-            List<AiModelConfig> configs = aiModelConfigService.exportConfigs(maskApiKey);
+            List<AiModelConfig> configs = aiModelConfigService.exportConfigs(true);
             return ResponseEntity.ok(Map.of(
                     "success", true,
                     "data", configs,
@@ -471,6 +474,10 @@ public class AiModelConfigController {
                 return ResponseEntity.badRequest().body(Map.of(
                         "success", false, "message", "导入数据不能为空"));
             }
+            if (rawConfigs.size() > 100) {
+                return ResponseEntity.badRequest().body(Map.of(
+                        "success", false, "message", "单次导入不能超过 100 条配置"));
+            }
 
             String onConflict = body.getOrDefault("onConflict", "skip").toString();
 

src/main/java/com/wok/supportbot/service/AiModelConfigService.java

@@ -42,39 +42,45 @@ public class AiModelConfigService {
      * @return 分页结果
      */
     public Map<String, Object> listConfigs(String appType, int page, int size) {
-        // 构建查询条件
-        StringBuilder whereClause = new StringBuilder("WHERE is_delete = false ");
-        List<Object> params = new ArrayList<>();
-
+        // 构建查询条件（共用基础条件）
+        LambdaQueryWrapper<AiModelConfig> baseCondition = new LambdaQueryWrapper<>();
         if (appType != null && !appType.isEmpty()) {
-            whereClause.append(" AND app_type = ? ");
-            params.add(appType);
+            baseCondition.eq(AiModelConfig::getAppType, appType);
         }
 
-        // 查询总数
-        String countSql = "SELECT COUNT(*) FROM ai_model_config " + whereClause;
-        Long total = jdbcTemplate.queryForObject(countSql, Long.class, params.toArray());
+        // 查询总数（不含排序和分页）
+        Long total = aiModelConfigMapper.selectCount(baseCondition);
         if (total == null) total = 0L;
 
-        // 查询列表（按 priority 降序、create_time 降序）
-        String listSql = "SELECT * FROM ai_model_config " + whereClause +
-                " ORDER BY priority DESC, create_time DESC LIMIT ? OFFSET ?";
-
-        List<Object> queryParams = new ArrayList<>(params);
-        queryParams.add(size);
-        queryParams.add((page - 1) * size);
-
-        List<Map<String, Object>> records = jdbcTemplate.queryForList(listSql, queryParams.toArray());
+        // 查询列表（带排序和分页）
+        LambdaQueryWrapper<AiModelConfig> listWrapper = new LambdaQueryWrapper<>();
+        if (appType != null && !appType.isEmpty()) {
+            listWrapper.eq(AiModelConfig::getAppType, appType);
+        }
+        listWrapper.orderByDesc(AiModelConfig::getPriority)
+                .orderByDesc(AiModelConfig::getCreateTime);
+        listWrapper.last("LIMIT " + size + " OFFSET " + ((page - 1) * size));
+        List<AiModelConfig> records = aiModelConfigMapper.selectList(listWrapper);
 
-        // 脱敏 API Key 并格式化结果
+        // 脱敏 API Key
         List<Map<String, Object>> formattedRecords = new ArrayList<>();
-        for (Map<String, Object> record : records) {
-            Map<String, Object> formatted = new LinkedHashMap<>(record);
-            // API Key 脱敏
-            String apiKey = (String) record.get("api_key");
-            if (apiKey != null) {
-                formatted.put("api_key", maskApiKey(apiKey));
-            }
+        for (AiModelConfig record : records) {
+            Map<String, Object> formatted = new LinkedHashMap<>();
+            formatted.put("id", record.getId());
+            formatted.put("name", record.getName());
+            formatted.put("app_type", record.getAppType());
+            formatted.put("provider", record.getProvider());
+            formatted.put("model_name", record.getModelName());
+            formatted.put("temperature", record.getTemperature());
+            formatted.put("max_tokens", record.getMaxTokens());
+            formatted.put("base_url", record.getBaseUrl());
+            formatted.put("api_key", maskApiKey(record.getApiKey()));
+            formatted.put("extra_config", record.getExtraConfig());
+            formatted.put("is_active", record.getIsActive());
+            formatted.put("priority", record.getPriority());
+            formatted.put("description", record.getDescription());
+            formatted.put("create_time", record.getCreateTime());
+            formatted.put("update_time", record.getUpdateTime());
             formattedRecords.add(formatted);
         }
 
@@ -98,9 +104,27 @@ public class AiModelConfigService {
     public AiModelConfig getConfigDetail(Long id) {
         AiModelConfig config = aiModelConfigMapper.selectById(id);
         if (config != null) {
-            config.setApiKey(maskApiKey(config.getApiKey()));
+            // 防御性拷贝：不直接修改 MyBatis 一级缓存中的实体对象，避免污染后续查询
+            AiModelConfig masked = AiModelConfig.builder()
+                    .id(config.getId())
+                    .name(config.getName())
+                    .appType(config.getAppType())
+                    .provider(config.getProvider())
+                    .apiKey(maskApiKey(config.getApiKey()))
+                    .modelName(config.getModelName())
+                    .temperature(config.getTemperature())
+                    .maxTokens(config.getMaxTokens())
+                    .baseUrl(config.getBaseUrl())
+                    .extraConfig(config.getExtraConfig())
+                    .isActive(config.getIsActive())
+                    .priority(config.getPriority())
+                    .description(config.getDescription())
+                    .createTime(config.getCreateTime())
+                    .updateTime(config.getUpdateTime())
+                    .build();
+            return masked;
         }
-        return config;
+        return null;
     }
 
     // ==================== 获取活跃配置 ====================
@@ -197,22 +221,21 @@ public class AiModelConfigService {
                 .build();
         validateModelTypeMatch(merged);
 
-        // 如果要激活此配置，先禁用同类型的其他配置
+        // 如果要激活此配置，先禁用目标类型的其他配置
+        // 目标类型 = 新 appType（如有修改）或原 appType
         if (Boolean.TRUE.equals(config.getIsActive())) {
-            deactivateByAppType(existing.getAppType());
-        }
-
-        // 如果 app_type 被修改且新配置为活跃，需要禁用新类型的其他配置
-        if (config.getAppType() != null && !config.getAppType().equals(existing.getAppType())
-                && Boolean.TRUE.equals(config.getIsActive())) {
-            deactivateByAppType(config.getAppType());
+            String targetAppType = config.getAppType() != null ? config.getAppType() : existing.getAppType();
+            deactivateByAppType(targetAppType);
         }
 
         // 设置 ID 确保更新正确
         config.setId(id);
-        // 防御：trim API Key 前后空白
+        // 防御：trim API Key 前后空白，空字符串置为 null 避免覆盖已有值
         if (config.getApiKey() != null) {
             config.setApiKey(config.getApiKey().trim());
+            if (config.getApiKey().isEmpty()) {
+                config.setApiKey(null);
+            }
         }
         aiModelConfigMapper.updateById(config);
         // JSONB 字段 MyBatis Plus typeHandler 可能不触发，用 JdbcTemplate 显式写入保证可靠
@@ -278,6 +301,7 @@ public class AiModelConfigService {
      *
      * @param id 配置ID
      */
+    @Transactional(rollbackFor = Exception.class)
     public void deleteConfig(Long id) {
         AiModelConfig config = aiModelConfigMapper.selectById(id);
         if (config == null) {
@@ -362,7 +386,8 @@ public class AiModelConfigService {
                     json, id);
             log.debug("持久化 extraConfig: id={}, extraConfig={}", id, json);
         } catch (Exception e) {
-            log.warn("持久化 extraConfig 失败: id={}, error={}", id, e.getMessage());
+            log.error("持久化 extraConfig 失败: id={}, error={}", id, e.getMessage());
+            throw new RuntimeException("持久化扩展配置失败: " + e.getMessage(), e);
         }
     }
 
@@ -450,6 +475,10 @@ public class AiModelConfigService {
      * @param priority 新优先级值
      */
     public void updatePriority(Long id, Integer priority) {
+        AiModelConfig config = aiModelConfigMapper.selectById(id);
+        if (config == null) {
+            throw new RuntimeException("配置不存在");
+        }
         LambdaUpdateWrapper<AiModelConfig> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(AiModelConfig::getId, id)
                 .set(AiModelConfig::getPriority, priority);

src/main/resources/static/components/ModelConfigManager.js

@@ -148,6 +148,10 @@ export default {
           <div style="font-size:22px;font-weight:700;color:#dc2626;">{{ healthSummary.offline }}</div>
           <div style="font-size:11px;color:#991b1b;">🔴 离线</div>
         </div>
+        <div v-if="healthSummary.unknown" style="padding:10px 16px;background:#fffbeb;border:1px solid #fde68a;border-radius:8px;min-width:100px;text-align:center;">
+          <div style="font-size:22px;font-weight:700;color:#d97706;">{{ healthSummary.unknown }}</div>
+          <div style="font-size:11px;color:#92400e;">🟡 未检测</div>
+        </div>
         <div style="padding:10px 16px;background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px;min-width:100px;text-align:center;">
           <div style="font-size:22px;font-weight:700;color:#374151;">{{ healthSummary.total }}</div>
           <div style="font-size:11px;color:#6b7280;">📊 总计</div>
@@ -186,7 +190,7 @@ export default {
             <!-- F4: 健康状态指示 -->
             <span v-if="healthMap[item.id]" :title="getHealthTooltip(item.id)"
               :style="{ color: healthMap[item.id].status === 'ONLINE' ? '#16a34a' : '#dc2626' }">
-              {{ healthMap[item.id].status === 'ONLINE' ? '🟢' : '🔴' }}
+              {{ healthMap[item.id].status === 'ONLINE' ? '🟢' : healthMap[item.id].status === 'UNKNOWN' ? '🟡' : '🔴' }}
               <span v-if="healthMap[item.id].latencyMs" style="font-size:10px;">{{ healthMap[item.id].latencyMs }}ms</span>
             </span>
             <span v-else style="color:#d1d5db;" title="未检测">🟡</span>
@@ -245,8 +249,8 @@ export default {
                   <!-- 健康指示器 -->
                   <span v-if="c.is_active && healthMap[c.id]"
                     :title="getHealthTooltip(c.id)"
-                    :style="{ cursor: 'help', color: healthMap[c.id].status === 'ONLINE' ? '#16a34a' : '#dc2626' }">
-                    {{ healthMap[c.id].status === 'ONLINE' ? '●' : '●' }}
+                    :style="{ cursor: 'help', color: healthMap[c.id].status === 'ONLINE' ? '#16a34a' : healthMap[c.id].status === 'UNKNOWN' ? '#d97706' : '#dc2626' }">
+                    {{ healthMap[c.id].status === 'ONLINE' ? '●' : healthMap[c.id].status === 'UNKNOWN' ? '●' : '●' }}
                     <span v-if="healthMap[c.id].latencyMs" style="font-size:10px;">{{ healthMap[c.id].latencyMs }}ms</span>
                   </span>
                   <span v-else-if="c.is_active" style="color:#d1d5db;cursor:help;" title="未检测">●</span>
@@ -467,7 +471,7 @@ export default {
     <!-- F7: 导入弹窗 -->
     <div class="modal-overlay" :class="{ active: showImportDialog }">
       <div class="modal-box" style="max-width:600px;">
-        <button class="modal-close" @click="showImportDialog = false">×</button>
+        <button class="modal-close" @click="closeImportDialog">×</button>
         <h2>📥 导入模型配置</h2>
         <div style="margin:16px 0;">
           <label style="font-size:13px;font-weight:600;display:block;margin-bottom:8px;">选择 JSON 文件</label>
@@ -499,7 +503,7 @@ export default {
           </div>
         </div>
         <div style="display:flex;gap:10px;margin-top:20px;justify-content:flex-end;">
-          <button class="btn btn-outline" @click="showImportDialog = false">关闭</button>
+          <button class="btn btn-outline" @click="closeImportDialog">关闭</button>
           <button class="btn btn-primary" @click="doImport" :disabled="!importPreview">📥 确认导入</button>
         </div>
       </div>
@@ -593,8 +597,18 @@ export default {
       const models = isEmbedding ? (defaults.embeddingModels || []) : (defaults.chatModels || [])
       const defaultModel = isEmbedding ? (defaults.defaultEmbeddingModel || '') : (defaults.defaultChatModel || '')
 
-      if (editModal.value.mode === 'add' && !editModal.value.form.model_name) {
-        editModal.value.form.model_name = defaultModel
+      // 新建模式：始终重置 model_name 为新提供商的默认模型
+      if (editModal.value.mode === 'add') {
+        editModal.value.form.model_name = defaultModel || ''
+      } else {
+        // 编辑模式：如果当前 model_name 不在新提供商的模型列表中，重置为默认模型
+        const currentModel = editModal.value.form.model_name
+        if (currentModel && currentModel !== '__custom__' && models.length > 0) {
+          const found = models.find(m => m.name === currentModel)
+          if (!found) {
+            editModal.value.form.model_name = defaultModel || ''
+          }
+        }
       }
 
       // F5: 使用对象格式的模型列表
@@ -671,7 +685,7 @@ export default {
     function getHealthTooltip(configId) {
       const h = healthMap.value[configId]
       if (!h) return '未检测'
-      let tip = h.status === 'ONLINE' ? '在线' : '离线'
+      let tip = h.status === 'ONLINE' ? '在线' : h.status === 'UNKNOWN' ? '未支持自动检测' : '离线'
       if (h.latencyMs) tip += ` · 延迟 ${h.latencyMs}ms`
       if (h.lastCheckTime) tip += ` · 最后检测 ${new Date(h.lastCheckTime).toLocaleTimeString()}`
       if (h.errorMessage) tip += ` · ${h.errorMessage}`
@@ -793,7 +807,7 @@ export default {
         isActive: form.is_active,
         description: form.description
       }
-      // 构建 extraConfig
+      // 构建 extraConfig（始终发送，以便后端清空已废弃的高级参数）
       const extraConfig = {}
       if (form.app_type === 'EMBEDDING') {
         extraConfig.dimensions = form.embeddingDimensions || 1024
@@ -805,9 +819,7 @@ export default {
       if (form.presencePenalty != null) extraConfig.presencePenalty = form.presencePenalty
       if (form.stopSequences && form.stopSequences.trim()) extraConfig.stopSequences = form.stopSequences.trim()
 
-      if (Object.keys(extraConfig).length > 0) {
-        data.extraConfig = extraConfig
-      }
+      data.extraConfig = extraConfig
       return data
     }
 
@@ -973,7 +985,7 @@ export default {
 
     async function exportConfigs() {
       try {
-        const json = await api.exportModelConfigs(true)
+        const json = await api.exportModelConfigs()
         if (json.success) {
           const blob = new Blob([JSON.stringify(json.data, null, 2)], { type: 'application/json' })
           const url = URL.createObjectURL(blob)
@@ -1029,6 +1041,12 @@ export default {
       }
     }
 
+    function closeImportDialog() {
+      showImportDialog.value = false
+      importPreview.value = null
+      importResult.value = null
+    }
+
     // ==================== 工具函数 ====================
 
     function getAppTypeLabel(appType) {
@@ -1076,7 +1094,7 @@ export default {
       fallbackChains, onDragStart, onDrop, deactivateConfig,
       // F7
       showImportDialog, importPreview, importConflict, importResult,
-      onImportFileSelect, doImport, exportConfigs,
+      onImportFileSelect, doImport, closeImportDialog, exportConfigs,
       // 基础
       load, openAddModal, openEditModal, closeEditModal, saveConfig, activate, remove,
       onProviderChange, getAppTypeLabel, getAppTypeBadgeClass, getProviderLabel, formatDate

src/main/resources/static/js/api.js

@@ -627,10 +627,10 @@ export function deactivateModelConfig(id) {
 // ==================== F7: 配置导入/导出 ====================
 
 /**
- * 导出所有模型配置
+ * 导出所有模型配置（API Key 始终脱敏）
  */
-export function exportModelConfigs(maskApiKey = true) {
-  return getJSON(`/model-config/export?maskApiKey=${maskApiKey}`)
+export function exportModelConfigs() {
+  return getJSON('/model-config/export')
 }
 
 /**