feat(notification): 添加微信订阅消息配置管理及幂等授权功能

- 新增微信订阅消息配置管理控制器，支持模板、场景、事件映射配置
- 实现用户通知授权服务的幂等控制，避免前端重试导致授权次数虚增
- 添加微信订阅消息发送日志记录，用于幂等与排障
- 新增视频生成完成时的订阅消息触发功能
- 实现场景模板查询接口，返回用户授权余额信息
- 添加模板V2相关数据表映射器和实体类
- 集成微信订阅消息触发服务到任务完成流程中

src/main/java/com/ycwl/basic/service/notify/WechatSubscribeNotifyConfigService.java

@@ -0,0 +1,81 @@
+package com.ycwl.basic.service.notify;
+
+import com.ycwl.basic.model.pc.notify.entity.WechatSubscribeEventTemplateEntity;
+import com.ycwl.basic.model.pc.notify.entity.WechatSubscribeSceneTemplateEntity;
+import com.ycwl.basic.model.pc.notify.entity.WechatSubscribeTemplateConfigEntity;
+import com.ycwl.basic.repository.WechatSubscribeNotifyConfigRepository;
+import org.springframework.stereotype.Service;
+import org.springframework.util.CollectionUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * 微信订阅消息配置查询服务（仅负责“配置解析”，不包含授权/发送逻辑）
+ *
+ * @Author: System
+ * @Date: 2025/12/31
+ */
+@Service
+public class WechatSubscribeNotifyConfigService {
+
+    private final WechatSubscribeNotifyConfigRepository configRepository;
+
+    public WechatSubscribeNotifyConfigService(WechatSubscribeNotifyConfigRepository configRepository) {
+        this.configRepository = configRepository;
+    }
+
+    public List<WechatSubscribeTemplateConfigEntity> listSceneTemplateConfigs(Long scenicId, String sceneKey) {
+        List<WechatSubscribeSceneTemplateEntity> mappings =
+                configRepository.listEffectiveSceneTemplateMappings(scenicId, sceneKey);
+        if (CollectionUtils.isEmpty(mappings)) {
+            return new ArrayList<>();
+        }
+
+        Set<String> templateKeys = mappings.stream()
+                .map(WechatSubscribeSceneTemplateEntity::getTemplateKey)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toSet());
+        Map<String, WechatSubscribeTemplateConfigEntity> configMap =
+                configRepository.getEffectiveTemplateConfigs(scenicId, templateKeys);
+
+        List<WechatSubscribeTemplateConfigEntity> result = new ArrayList<>();
+        for (WechatSubscribeSceneTemplateEntity mapping : mappings) {
+            WechatSubscribeTemplateConfigEntity cfg = configMap.get(mapping.getTemplateKey());
+            if (cfg == null || !Objects.equals(cfg.getEnabled(), 1)) {
+                continue;
+            }
+            result.add(cfg);
+        }
+        return result;
+    }
+
+    public List<WechatSubscribeTemplateConfigEntity> listEventTemplateConfigs(Long scenicId, String eventKey) {
+        List<WechatSubscribeEventTemplateEntity> mappings =
+                configRepository.listEffectiveEventTemplateMappings(scenicId, eventKey);
+        if (CollectionUtils.isEmpty(mappings)) {
+            return new ArrayList<>();
+        }
+
+        Set<String> templateKeys = mappings.stream()
+                .map(WechatSubscribeEventTemplateEntity::getTemplateKey)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toSet());
+        Map<String, WechatSubscribeTemplateConfigEntity> configMap =
+                configRepository.getEffectiveTemplateConfigs(scenicId, templateKeys);
+
+        List<WechatSubscribeTemplateConfigEntity> result = new ArrayList<>();
+        for (WechatSubscribeEventTemplateEntity mapping : mappings) {
+            WechatSubscribeTemplateConfigEntity cfg = configMap.get(mapping.getTemplateKey());
+            if (cfg == null || !Objects.equals(cfg.getEnabled(), 1)) {
+                continue;
+            }
+            result.add(cfg);
+        }
+        return result;
+    }
+}