feat: add price alert webhook registration for creator key price thresholds

prisma/schema/alert.prisma

@@ -1,16 +1,30 @@
 // prisma/schema/alert.prisma
 
-model PriceAlert {
-  id            String   @id @default(cuid())
+enum AlertDirection {
+  ABOVE
+  BELOW
+}
+
+enum AlertStatus {
+  PENDING
+  TRIGGERED
+  FAILED
+}
+
+model Alert {
+  id            String         @id @default(cuid())
   creatorId     String
   walletAddress String
-  targetPrice   Decimal
-  direction     String   // "above" | "below"
+  targetPrice   Decimal        @db.Decimal(38, 18)
+  direction     AlertDirection
   callbackUrl   String
-  isActive      Boolean  @default(true)
+  status        AlertStatus    @default(PENDING)
+  retryCount    Int            @default(0)
+  lastError     String?
   triggeredAt   DateTime?
-  createdAt     DateTime @default(now())
+  createdAt     DateTime       @default(now())
+  updatedAt     DateTime       @updatedAt
 
   @@index([creatorId])
-  @@index([walletAddress])
+  @@index([status])
 }

prisma/schema/migrations/20260619000000_add_price_alerts/migration.sql

@@ -0,0 +1,29 @@
+-- CreateEnum
+CREATE TYPE "AlertDirection" AS ENUM ('ABOVE', 'BELOW');
+
+-- CreateEnum
+CREATE TYPE "AlertStatus" AS ENUM ('PENDING', 'TRIGGERED', 'FAILED');
+
+-- CreateTable
+CREATE TABLE "Alert" (
+    "id" TEXT NOT NULL,
+    "creatorId" TEXT NOT NULL,
+    "walletAddress" TEXT NOT NULL,
+    "targetPrice" DECIMAL(38,18) NOT NULL,
+    "direction" "AlertDirection" NOT NULL,
+    "callbackUrl" TEXT NOT NULL,
+    "status" "AlertStatus" NOT NULL DEFAULT 'PENDING',
+    "retryCount" INTEGER NOT NULL DEFAULT 0,
+    "lastError" TEXT,
+    "triggeredAt" TIMESTAMP(3),
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "Alert_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "Alert_creatorId_idx" ON "Alert"("creatorId");
+
+-- CreateIndex
+CREATE INDEX "Alert_status_idx" ON "Alert"("status");