feat(frontend): add full reservation workflow, timeline gantt, and booking modal

frontend/src/types/index.ts

@@ -0,0 +1,39 @@
+export type TableStatus = 'FREE' | 'OCCUPIED' | 'RESERVED' | 'BILL';
+export type TableShape = 'RECT' | 'ROUND';
+export type ReservationStatus = 'PENDING' | 'CONFIRMED' | 'ARRIVED' | 'FINISHED' | 'NO_SHOW' | 'CANCELLED';
+export type ViewMode = 'floor' | 'timeline' | 'list';
+
+export interface RestaurantTable {
+  id: string;
+  number: string;
+  seats: number;
+  minCapacity: number;
+  maxCapacity: number;
+  status: TableStatus;
+  x: number;
+  y: number;
+  shape: TableShape;
+  area: string;
+}
+
+export interface Guest {
+  id: string;
+  firstName: string;
+  lastName: string;
+  phone?: string;
+  email?: string;
+}
+
+export interface Reservation {
+  id: string;
+  guest: Guest;
+  tableIds: string[];
+  date: string;
+  startTime: string;
+  endTime: string;
+  guestCount: number;
+  status: ReservationStatus;
+  notes: string;
+  tags: string[];
+  createdAt: string;
+}