feat: scaffold MUI theme, providers, color mode and i18n

src/types/index.ts

@@ -0,0 +1,59 @@
+export type Role = 'admin' | 'staff' | 'user' | 'guest';
+
+export type ToolCategory =
+  | 'power'
+  | 'measurement'
+  | 'hand'
+  | 'electronics'
+  | 'workshop'
+  | 'garden'
+  | 'sewing'
+  | 'bike';
+
+export interface User {
+  id: string;
+  username: string;
+  role: Role;
+  trainings: string[];
+  email?: string;
+}
+
+export interface Tool {
+  id: string;
+  name: string;
+  description: string;
+  location: string;
+  category: ToolCategory;
+  trainingRequired: boolean;
+  requiredTrainingId?: string;
+  homeAllowed: boolean;
+  maxRentalDays: number;
+  emoji: string;
+}
+
+export interface Reservation {
+  id: string;
+  userId: string;
+  toolId: string;
+  startDate: string;
+  endDate: string;
+  status: 'requested' | 'approved' | 'active' | 'completed' | 'overdue';
+  note?: string;
+}
+
+export interface Manual {
+  toolId: string;
+  title?: string;
+  content: string;
+}
+
+export const CATEGORY_LABEL: Record<ToolCategory, string> = {
+  power: 'Elektrowerkzeuge',
+  measurement: 'Messen',
+  hand: 'Handwerkzeug',
+  electronics: 'Elektronik',
+  workshop: 'Werkstatt',
+  garden: 'Garten',
+  sewing: 'Nähen',
+  bike: 'Fahrrad',
+};