fix: implement channel group routing failover

api/prisma/migrations/20260703110000_add_channel_group_routing_rules/migration.sql

@@ -0,0 +1,20 @@
+-- Channel-group routing rules for first-version send-chain failover.
+ALTER TABLE "SmsChannel" ADD COLUMN "sendRegion" TEXT NOT NULL DEFAULT '全国';
+
+ALTER TABLE "SmsChannelGroup" ADD COLUMN "retryEnabled" BOOLEAN NOT NULL DEFAULT true;
+ALTER TABLE "SmsChannelGroup" ADD COLUMN "retryTimeLimitHours" INTEGER NOT NULL DEFAULT 72;
+
+CREATE TABLE "PhoneCarrierRule" (
+  "id" TEXT NOT NULL,
+  "carrier" TEXT NOT NULL,
+  "pattern" TEXT NOT NULL,
+  "priority" INTEGER NOT NULL DEFAULT 100,
+  "status" TEXT NOT NULL DEFAULT 'active',
+  "remark" TEXT,
+  "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  "updatedAt" TIMESTAMP(3) NOT NULL,
+
+  CONSTRAINT "PhoneCarrierRule_pkey" PRIMARY KEY ("id")
+);
+
+CREATE INDEX "PhoneCarrierRule_status_priority_idx" ON "PhoneCarrierRule"("status", "priority");

api/prisma/schema.prisma

@@ -173,6 +173,19 @@ model PhoneSegment {
   updatedAt DateTime @updatedAt
 }
 
+model PhoneCarrierRule {
+  id        String   @id @default(cuid())
+  carrier   String
+  pattern   String
+  priority  Int      @default(100)
+  status    String   @default("active")
+  remark    String?
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  @@index([status, priority])
+}
+
 model SensitiveWord {
   id        String   @id @default(cuid())
   word      String   @unique
@@ -453,6 +466,7 @@ model SmsChannel {
   code           String   @unique
   name           String
   carrier        String?
+  sendRegion     String   @default("全国")
   protocol       String   @default("CMPP")
   gatewayHost    String
   gatewayPort    Int
@@ -514,6 +528,8 @@ model SmsChannelGroup {
   name        String
   description String?
   status      String   @default("active")
+  retryEnabled Boolean  @default(true)
+  retryTimeLimitHours Int @default(72)
   createdAt   DateTime @default(now())
   updatedAt   DateTime @updatedAt