continued the kita-planer

prisma/schema.prisma

@@ -32,6 +32,7 @@ enum UserRole {
   SUPERADMIN
   ADMIN
   KOORDINATOR
+  ERZIEHER
   ELTERN
 }
 
@@ -73,6 +74,18 @@ enum NotdienstAlertStatus {
   CANCELLED
 }
 
+enum DutyAssignmentStatus {
+  PLANNED
+  DONE
+  CANCELLED
+}
+
+enum AbsenceReason {
+  ILLNESS
+  VACATION
+  OTHER
+}
+
 // =====================================================================
 // TENANT
 // =====================================================================
@@ -96,10 +109,15 @@ model Kita {
 
   // Relations (Cascade auf alle Tenant-Daten)
   users                   User[]
+  families                Family[]
   children                Child[]
   educators               Educator[]
   parentDuties            ParentDuty[]
   parentDutyAssignments   ParentDutyAssignment[]
+  dutyTypes               DutyType[]
+  dutyAssignments         DutyAssignment[]
+  absences                Absence[]
+  announcements           Announcement[]
   invitations             Invitation[]
   termine                 Termin[]
   mitbringselItems        MitbringselItem[]
@@ -107,11 +125,33 @@ model Kita {
   notdienstAvailabilities NotdienstAvailability[]
   notdienstAssignments    NotdienstAssignment[]
   notdienstAlerts         NotdienstAlert[]
-  childParents            ChildParent[]
 
   @@map("kitas")
 }
 
+// =====================================================================
+// FAMILIES / HAUSHALTE
+// =====================================================================
+
+model Family {
+  id String @id @default(cuid())
+
+  kitaId String
+  kita   Kita   @relation(fields: [kitaId], references: [id], onDelete: Cascade)
+
+  name String
+
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  users           User[]
+  children        Child[]
+  dutyAssignments DutyAssignment[]
+
+  @@index([kitaId])
+  @@map("families")
+}
+
 // =====================================================================
 // USERS
 // =====================================================================
@@ -124,6 +164,11 @@ model User {
   kitaId String?
   kita   Kita?   @relation(fields: [kitaId], references: [id], onDelete: Cascade)
 
+  /// Optional, weil Admins/Superadmins keinem Haushalt angehören müssen.
+  /// Eltern-User werden beim Löschen ihrer Familie kaskadiert entfernt.
+  familyId String?
+  family   Family? @relation(fields: [familyId], references: [id], onDelete: Cascade)
+
   email        String @unique
   passwordHash String
 
@@ -157,13 +202,14 @@ model User {
   updatedAt DateTime @updatedAt
 
   // Relations
-  childLinks      ChildParent[]
   dutyAssignments ParentDutyAssignment[]
 
   notdienstAvailabilities  NotdienstAvailability[]
   notdienstAlertsAssigned  NotdienstAlert[]        @relation("NotdienstAlertParent")
   notdienstAlertsTriggered NotdienstAlert[]        @relation("NotdienstAlertTrigger")
   notdienstPlansCreated    NotdienstPlan[]         @relation("NotdienstPlanCreator")
+  announcementsAuthored    Announcement[]          @relation("AnnouncementAuthor")
+  announcementReads        AnnouncementRead[]
 
   termineCreated  Termin[] @relation("TerminCreator")
   termineApproved Termin[] @relation("TerminApprover")
@@ -172,6 +218,7 @@ model User {
   invitationsCreated Invitation[]      @relation("InvitationCreator")
 
   @@index([kitaId])
+  @@index([familyId])
   @@index([kitaId, role])
   @@map("users")
 }
@@ -185,6 +232,9 @@ model Child {
   kitaId String
   kita   Kita   @relation(fields: [kitaId], references: [id], onDelete: Cascade)
 
+  familyId String
+  family   Family @relation(fields: [familyId], references: [id], onDelete: Cascade)
+
   firstName   String
   lastName    String
   dateOfBirth DateTime?
@@ -195,34 +245,15 @@ model Child {
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
 
-  parentLinks             ChildParent[]
   notdienstAvailabilities NotdienstAvailability[]
   notdienstAssignments    NotdienstAssignment[]
+  absences                Absence[]
 
   @@index([kitaId])
+  @@index([familyId])
   @@map("children")
 }
 
-/// Verknüpfung Kind ↔ Elternteil (m:n).
-/// Kaskadiert über beide Seiten, damit das Löschen eines Users
-/// oder Kindes keine Datenleichen hinterlässt.
-model ChildParent {
-  id      String @id @default(cuid())
-  kitaId  String
-  kita    Kita   @relation(fields: [kitaId], references: [id], onDelete: Cascade)
-  childId String
-  child   Child  @relation(fields: [childId], references: [id], onDelete: Cascade)
-  userId  String
-  user    User   @relation(fields: [userId], references: [id], onDelete: Cascade)
-
-  createdAt DateTime @default(now())
-
-  @@unique([childId, userId])
-  @@index([kitaId])
-  @@index([userId])
-  @@map("child_parents")
-}
-
 // =====================================================================
 // EDUCATORS (ErzieherInnen — reine Stammdaten, keine Logins, Modul 4)
 // =====================================================================
@@ -285,6 +316,131 @@ model ParentDutyAssignment {
   @@map("parent_duty_assignments")
 }
 
+// =====================================================================
+// DUTY PLANNING (Top-Down-Dienstplan fuer Haushalte)
+// =====================================================================
+
+model DutyType {
+  id     String @id @default(cuid())
+  kitaId String
+  kita   Kita   @relation(fields: [kitaId], references: [id], onDelete: Cascade)
+
+  name        String
+  description String?
+
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  assignments DutyAssignment[]
+
+  @@unique([kitaId, name])
+  @@index([kitaId])
+  @@map("duty_types")
+}
+
+model DutyAssignment {
+  id     String @id @default(cuid())
+  kitaId String
+  kita   Kita   @relation(fields: [kitaId], references: [id], onDelete: Cascade)
+
+  familyId String
+  family   Family @relation(fields: [familyId], references: [id], onDelete: Cascade)
+
+  dutyTypeId String
+  dutyType   DutyType @relation(fields: [dutyTypeId], references: [id], onDelete: Cascade)
+
+  startDate DateTime             @db.Date
+  endDate   DateTime             @db.Date
+  status    DutyAssignmentStatus @default(PLANNED)
+
+  reminderSentAt DateTime?
+
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  @@unique([kitaId, dutyTypeId, startDate])
+  @@index([kitaId, startDate])
+  @@index([familyId, startDate])
+  @@map("duty_assignments")
+}
+
+// =====================================================================
+// ABSENCES (Abwesenheits- und Krankmeldungen)
+// =====================================================================
+
+model Absence {
+  id     String @id @default(cuid())
+  kitaId String
+  kita   Kita   @relation(fields: [kitaId], references: [id], onDelete: Cascade)
+
+  childId String
+  child   Child  @relation(fields: [childId], references: [id], onDelete: Cascade)
+
+  startDate DateTime      @db.Date
+  endDate   DateTime      @db.Date
+  reason    AbsenceReason
+  note      String?
+
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  @@index([kitaId, startDate, endDate])
+  @@index([childId, startDate])
+  @@map("absences")
+}
+
+// =====================================================================
+// ANNOUNCEMENTS (Digitales Schwarzes Brett)
+// =====================================================================
+
+model Announcement {
+  id     String @id @default(cuid())
+  kitaId String
+  kita   Kita   @relation(fields: [kitaId], references: [id], onDelete: Cascade)
+
+  title   String
+  content String
+
+  authorId String
+  author   User   @relation("AnnouncementAuthor", fields: [authorId], references: [id], onDelete: Cascade)
+
+  createdAt DateTime @default(now())
+
+  attachments Attachment[]
+  reads       AnnouncementRead[]
+
+  @@index([kitaId, createdAt])
+  @@index([authorId])
+  @@map("announcements")
+}
+
+model Attachment {
+  id             String       @id @default(cuid())
+  announcementId String
+  announcement   Announcement @relation(fields: [announcementId], references: [id], onDelete: Cascade)
+
+  fileName String
+  fileUrl  String
+  fileType String
+
+  @@index([announcementId])
+  @@map("attachments")
+}
+
+model AnnouncementRead {
+  id             String       @id @default(cuid())
+  userId         String
+  user           User         @relation(fields: [userId], references: [id], onDelete: Cascade)
+  announcementId String
+  announcement   Announcement @relation(fields: [announcementId], references: [id], onDelete: Cascade)
+
+  readAt DateTime @default(now())
+
+  @@unique([userId, announcementId])
+  @@index([announcementId])
+  @@map("announcement_reads")
+}
+
 // =====================================================================
 // INVITATIONS (Invite-Only Onboarding, Modul 3)
 // =====================================================================