chore: Add Invitation model and migration

prisma/migrations/20240912193038_create_invitations_table/migration.sql

@@ -0,0 +1,13 @@
+-- CreateTable
+CREATE TABLE "Invitation" (
+    "id" TEXT NOT NULL,
+    "email" TEXT NOT NULL,
+    "expires" TIMESTAMP(3) NOT NULL,
+    "role" TEXT NOT NULL,
+    "templateId" TEXT NOT NULL,
+
+    CONSTRAINT "Invitation_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "Invitation" ADD CONSTRAINT "Invitation_templateId_fkey" FOREIGN KEY ("templateId") REFERENCES "Template"("id") ON DELETE CASCADE ON UPDATE NO ACTION;

prisma/schema.prisma

@@ -59,7 +59,8 @@ model Template {
   bearerToken       String?
   ttl               DateTime?
   users             User[]
-  closingDate       DateTime?       @db.Timestamptz(6)    
+  closingDate       DateTime?       @db.Timestamptz(6)
+  invitations       Invitation[]
 }
 
 model DeliveryOption {
@@ -145,3 +146,12 @@ model MagicLink {
   token      String   @unique
   expires    DateTime
 }
+
+model Invitation {
+  id           String   @id @default(cuid())
+  email        String
+  expires      DateTime
+  role         String   // future use
+  templateId   String
+  template     Template @relation(fields: [templateId], references: [id], onDelete: Cascade, onUpdate: NoAction)
+}