fix: implement channel group routing failover

api/src/dictionaries/dictionaries.service.ts

@@ -9,6 +9,14 @@ export interface CreatePhoneSegmentDto {
   city?: string;
 }
 
+export interface CreatePhoneCarrierRuleDto {
+  carrier: string;
+  pattern: string;
+  priority?: number;
+  status?: string;
+  remark?: string;
+}
+
 export interface CreateSensitiveWordDto {
   word: string;
   level?: string;
@@ -56,6 +64,30 @@ export class DictionariesService {
     return this.prisma.phoneSegment.create({ data });
   }
 
+  listPhoneCarrierRules() {
+    return this.prisma.phoneCarrierRule.findMany({ orderBy: [{ priority: 'asc' }, { createdAt: 'desc' }], take: 200 });
+  }
+
+  createPhoneCarrierRule(data: CreatePhoneCarrierRuleDto) {
+    if (!data.carrier || !data.pattern) {
+      throw new BadRequestException('carrier and pattern are required');
+    }
+    try {
+      new RegExp(data.pattern);
+    } catch {
+      throw new BadRequestException('pattern must be a valid regular expression');
+    }
+    return this.prisma.phoneCarrierRule.create({
+      data: {
+        carrier: data.carrier,
+        pattern: data.pattern,
+        priority: data.priority ?? 100,
+        status: data.status ?? 'active',
+        remark: data.remark,
+      },
+    });
+  }
+
   listSensitiveWords(query: DictionaryListQuery = {}) {
     return this.prisma.sensitiveWord.findMany({
       where: {