added init files

backend/src/models/Shift.ts

@@ -0,0 +1,35 @@
+// backend/src/models/Shift.ts
+export interface ShiftTemplate {
+  id: string;
+  name: string;
+  shifts: TemplateShift[];
+  createdBy: string;
+}
+
+export interface TemplateShift {
+  dayOfWeek: number; // 0-6
+  name: string;
+  startTime: string; // "08:00"
+  endTime: string;   // "12:00"
+  requiredEmployees: number;
+}
+
+export interface ShiftPlan {
+  id: string;
+  name: string;
+  startDate: string;
+  endDate: string;
+  templateId?: string;
+  shifts: AssignedShift[];
+  status: 'draft' | 'published';
+  createdBy: string;
+}
+
+export interface AssignedShift {
+  id: string;
+  date: string;
+  startTime: string;
+  endTime: string;
+  requiredEmployees: number;
+  assignedEmployees: string[];
+}

backend/src/models/ShiftTemplate.ts

@@ -0,0 +1,35 @@
+// backend/src/models/ShiftTemplate.ts
+export interface ShiftTemplate {
+  id: string;
+  name: string;
+  description?: string;
+  isDefault: boolean;
+  createdBy: string;
+  createdAt: string;
+  shifts: TemplateShift[];
+}
+
+export interface TemplateShift {
+  id: string;
+  templateId: string;
+  dayOfWeek: number;
+  name: string;
+  startTime: string;
+  endTime: string;
+  requiredEmployees: number;
+  color?: string;
+}
+
+export interface CreateShiftTemplateRequest {
+  name: string;
+  description?: string;
+  isDefault: boolean;
+  shifts: Omit<TemplateShift, 'id' | 'templateId'>[];
+}
+
+export interface UpdateShiftTemplateRequest {
+  name?: string;
+  description?: string;
+  isDefault?: boolean;
+  shifts?: Omit<TemplateShift, 'id' | 'templateId'>[];
+}

backend/src/models/User.ts

@@ -0,0 +1,15 @@
+// backend/src/models/User.ts
+export interface User {
+  id: string;
+  email: string;
+  password: string; // gehashed
+  name: string;
+  role: 'admin' | 'instandhalter' | 'user';
+  createdAt: Date;
+}
+
+export interface UserSession {
+  userId: string;
+  token: string;
+  expiresAt: Date;
+}