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");

api/prisma/schema.prisma

@@ -103,6 +103,7 @@ model User {
   releasedPhoneFrequencyHits            PhoneFrequencyHit[]       @relation("PhoneFrequencyHitReleaser")
   createdPhoneFrequencyWhitelistEntries PhoneFrequencyWhitelist[] @relation("PhoneFrequencyWhitelistCreator")
   updatedPhoneFrequencyWhitelistEntries PhoneFrequencyWhitelist[] @relation("PhoneFrequencyWhitelistUpdater")
+  infrastructureAlertReads              InfrastructureAlertRead[]
 }
 
 model Role {
@@ -2446,3 +2447,18 @@ model InfrastructureAlertSetting {
   createdAt           DateTime  @default(now())
   updatedAt           DateTime  @updatedAt
 }
+
+model InfrastructureAlertRead {
+  id          String   @id @default(cuid())
+  fingerprint String
+  activeAt    DateTime
+  userId      String
+  readAt      DateTime @default(now())
+  createdAt   DateTime @default(now())
+  updatedAt   DateTime @updatedAt
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@unique([fingerprint, userId])
+  @@index([userId, readAt])
+}