feat: add monitoring alert read state

api/prisma/migrations/20260816100000_add_infrastructure_alert_reads/migration.sql

@@ -0,0 +1,17 @@
+CREATE TABLE "InfrastructureAlertRead" (
+  "id" TEXT NOT NULL,
+  "fingerprint" TEXT NOT NULL,
+  "activeAt" TIMESTAMP(3) NOT NULL,
+  "userId" TEXT NOT NULL,
+  "readAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  "updatedAt" TIMESTAMP(3) NOT NULL,
+  CONSTRAINT "InfrastructureAlertRead_pkey" PRIMARY KEY ("id"),
+  CONSTRAINT "InfrastructureAlertRead_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+CREATE UNIQUE INDEX "InfrastructureAlertRead_fingerprint_userId_key"
+  ON "InfrastructureAlertRead"("fingerprint", "userId");
+
+CREATE INDEX "InfrastructureAlertRead_userId_readAt_idx"
+  ON "InfrastructureAlertRead"("userId", "readAt");