feat(sync): 添加配置路径删除功能并优化同步逻辑

添加DeleteConfigMap方法支持删除单个配置路径，在UploadConfig中增加清理不存在路径的逻辑，同时优化ExtensionRules的JSON解析处理

Author: woodchen-ink

internal/config/config.go

@@ -182,7 +182,7 @@ func (cm *ConfigManager) createDefaultConfig() error {
 	// 创建默认配置
 	defaultConfig := Config{
 		MAP: map[string]PathConfig{
-			"/": {
+			"/test": {
 				DefaultTarget: "http://localhost:8080",
 				// 添加新式扩展名规则映射示例
 				ExtensionMap: []ExtRuleConfig{

pkg/sync/d1_client.go

@@ -304,6 +304,32 @@ func (c *D1Client) BatchUpsertConfigMaps(ctx context.Context, maps []ConfigMap)
 	return nil
 }
 
+// DeleteConfigMap 删除单个配置路径
+func (c *D1Client) DeleteConfigMap(ctx context.Context, path string) error {
+	url := fmt.Sprintf("%s/config-maps/%s", c.endpoint, path)
+	req, err := http.NewRequestWithContext(ctx, "DELETE", url, nil)
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+
+	if c.token != "" {
+		req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.token))
+	}
+
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to send request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("D1 API error (status %d): %s", resp.StatusCode, string(body))
+	}
+
+	return nil
+}
+
 // ============================================
 // Config Other
 // ============================================

pkg/sync/d1_manager.go

@@ -145,6 +145,35 @@ func (m *D1Manager) UploadConfig(ctx context.Context, config any) error {
 		return fmt.Errorf("failed to convert config: %w", err)
 	}
 
+	// 获取 D1 中现有的所有路径
+	existingMaps, err := m.storage.GetConfigMaps(ctx, false)
+	if err != nil {
+		log.Printf("[D1Sync] Warning: failed to get existing config maps: %v", err)
+		// 继续执行,不影响上传
+	} else {
+		// 构建新配置中的路径集合
+		newPaths := make(map[string]bool)
+		for _, m := range maps {
+			newPaths[m.Path] = true
+		}
+
+		// 删除 D1 中已不存在的路径
+		deletedCount := 0
+		for _, existing := range existingMaps {
+			if !newPaths[existing.Path] {
+				if err := m.storage.DeleteConfigMap(ctx, existing.Path); err != nil {
+					log.Printf("[D1Sync] Warning: failed to delete config map %s: %v", existing.Path, err)
+				} else {
+					deletedCount++
+					log.Printf("[D1Sync] Deleted config map: %s", existing.Path)
+				}
+			}
+		}
+		if deletedCount > 0 {
+			log.Printf("[D1Sync] Deleted %d config maps", deletedCount)
+		}
+	}
+
 	// 批量上传 ConfigMaps
 	if len(maps) > 0 {
 		if err := m.storage.BatchUpsertConfigMaps(ctx, maps); err != nil {
@@ -349,11 +378,13 @@ func (m *D1Manager) downloadConfigWithFallback(ctx context.Context) (map[string]
 				"Enabled":       cm.IsEnabled(), // 使用方法转换为 bool
 			}
 
-			// 解析 ExtensionRules JSON
+			// 解析 ExtensionRules JSON (应该是数组格式)
 			if cm.ExtensionRules != "" {
-				var extRules map[string]any
+				var extRules []any
 				if err := json.Unmarshal([]byte(cm.ExtensionRules), &extRules); err == nil {
 					pathConfig["ExtensionMap"] = extRules
+				} else {
+					log.Printf("[D1Sync] Warning: failed to parse ExtensionRules for path %s: %v", cm.Path, err)
 				}
 			}