Add Guests page with history/ratings and booking discounts

- New /guests page: searchable guest list with stay history, payment
  summary, rating (1-5 stars), loyalty status (Базовый/Серебряный/Золотой),
  tags (VIP, Постоянный, Корпоративный, Медовый месяц, Проблемный),
  per-guest notes, inline payments tab with debt tracking
- Guest detail modal: 3 tabs — Обзор / История проживания / Платежи
- Sidebar: added "Гости" link (UsersRound icon) in Основное section
- BookingModal: discount block — % or fixed ₽ amount, free-stay checkbox
  that zeroes room cost; summary shows strikethrough original + discount line;
  total reflects discount applied before services

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/bookings/BookingModal.tsx

@@ -1,6 +1,6 @@
 import { useState } from 'react'
 import { format } from 'date-fns'
-import { Star, Banknote, CreditCard, AlertCircle, Map, Plus, Trash2, IdCard, CalendarDays } from 'lucide-react'
+import { Star, Banknote, CreditCard, AlertCircle, Map, Plus, Trash2, IdCard, CalendarDays, Percent, Tag } from 'lucide-react'
 import { Modal } from '../ui/Modal'
 import { cn, BOOKING_STATUS_LABELS } from '../../lib/utils'
 import type { Booking, DraftBooking, Room, BookingStatus } from '../../types'
@@ -82,6 +82,9 @@ export function BookingModal({ open, draft, rooms, onClose, onSave, existing }:
   const [selectedServiceId, setSelectedServiceId] = useState(ADDITIONAL_SERVICES[0].id)
   const [activeTab, setActiveTab] = useState<'booking' | 'passport'>('booking')
   const [passport, setPassport] = useState<PassportData>(EMPTY_PASSPORT)
+  const [discountType, setDiscountType] = useState<'percent' | 'fixed'>('percent')
+  const [discountValue, setDiscountValue] = useState(0)
+  const [isFreeStay, setIsFreeStay] = useState(false)
 
   const setP = <K extends keyof PassportData>(k: K, v: PassportData[K]) =>
     setPassport(prev => ({ ...prev, [k]: v }))
@@ -100,9 +103,14 @@ export function BookingModal({ open, draft, rooms, onClose, onSave, existing }:
     : 0
 
   const hourlyHours = Math.max(0, endHour - startHour)
-  const roomTotal = isHourly && room?.allowHourly
+  const roomBaseTotal = isHourly && room?.allowHourly
     ? (room.hourlyRate ?? 0) * hourlyHours
     : (room?.baseRate ?? 0) * nights
+  const discountAmount = isFreeStay ? roomBaseTotal
+    : discountType === 'percent'
+      ? Math.round(roomBaseTotal * Math.min(100, Math.max(0, discountValue)) / 100)
+      : Math.min(roomBaseTotal, Math.max(0, discountValue))
+  const roomTotal = Math.max(0, roomBaseTotal - discountAmount)
   const servicesTotal = addedServices.reduce((s, sv) => s + sv.price * sv.qty, 0)
   const total = roomTotal + servicesTotal
 
@@ -479,6 +487,67 @@ export function BookingModal({ open, draft, rooms, onClose, onSave, existing }:
                       </button>
                     </div>
                   </div>
+                  {/* Discount */}
+                  <div>
+                    <label className="block text-xs text-slate-500 dark:text-slate-400 mb-1.5">Скидка</label>
+                    <div className="flex items-center gap-2">
+                      <label className="flex items-center gap-1.5 cursor-pointer select-none">
+                        <input
+                          type="checkbox"
+                          className="w-3.5 h-3.5 rounded accent-brand-600"
+                          checked={isFreeStay}
+                          onChange={e => { setIsFreeStay(e.target.checked); if (e.target.checked) setDiscountValue(0) }}
+                        />
+                        <span className="text-xs text-slate-600 dark:text-slate-300 flex items-center gap-1">
+                          <Tag size={11} /> Бесплатное проживание
+                        </span>
+                      </label>
+                    </div>
+                    {!isFreeStay && (
+                      <div className="flex gap-1.5 mt-2">
+                        <button
+                          type="button"
+                          onClick={() => setDiscountType('percent')}
+                          className={cn(
+                            'px-2.5 py-1.5 rounded-lg text-xs font-medium border transition-colors flex items-center gap-1',
+                            discountType === 'percent'
+                              ? 'bg-brand-600 text-white border-brand-600'
+                              : 'bg-white dark:bg-slate-700 text-slate-600 dark:text-slate-300 border-slate-200 dark:border-slate-600',
+                          )}
+                        >
+                          <Percent size={11} /> %
+                        </button>
+                        <button
+                          type="button"
+                          onClick={() => setDiscountType('fixed')}
+                          className={cn(
+                            'px-2.5 py-1.5 rounded-lg text-xs font-medium border transition-colors',
+                            discountType === 'fixed'
+                              ? 'bg-brand-600 text-white border-brand-600'
+                              : 'bg-white dark:bg-slate-700 text-slate-600 dark:text-slate-300 border-slate-200 dark:border-slate-600',
+                          )}
+                        >
+                          ₽
+                        </button>
+                        <input
+                          type="number"
+                          min={0}
+                          max={discountType === 'percent' ? 100 : roomBaseTotal}
+                          className="input flex-1 text-sm"
+                          placeholder={discountType === 'percent' ? '0–100 %' : '0 ₽'}
+                          value={discountValue || ''}
+                          onChange={e => setDiscountValue(Math.max(0, parseInt(e.target.value) || 0))}
+                        />
+                      </div>
+                    )}
+                    {(isFreeStay || discountAmount > 0) && (
+                      <p className="text-xs text-emerald-600 dark:text-emerald-400 mt-1">
+                        Скидка: −{discountAmount.toLocaleString('ru-RU')} ₽
+                        {isFreeStay ? ' (бесплатное проживание)' : discountType === 'percent' ? ` (${discountValue}%)` : ''}
+                      </p>
+                    )}
+                  </div>
+
                   {/* Additional services */}
                   <div>
                     <label className="block text-xs text-slate-500 dark:text-slate-400 mb-1.5">Дополнительные услуги</label>
@@ -547,15 +616,15 @@ export function BookingModal({ open, draft, rooms, onClose, onSave, existing }:
               onChange={e => set('notes', e.target.value)}
             />
           </div>
-          {total > 0 && room && (
+          {(total > 0 || isFreeStay || discountAmount > 0) && room && (
             <div className="flex-1 rounded-xl bg-slate-50 dark:bg-slate-700/50 px-4 py-3 space-y-1.5 self-end">
               {isHourly && room.allowHourly ? (
                 <div className="flex items-center justify-between">
                   <span className="text-sm text-slate-600 dark:text-slate-300">
                     {hourlyHours} {hourlyHours === 1 ? 'час' : hourlyHours < 5 ? 'часа' : 'часов'} × {(room.hourlyRate ?? 0).toLocaleString('ru-RU')} ₽
                   </span>
-                  <span className="font-semibold text-slate-900 dark:text-slate-100">
-                    {roomTotal.toLocaleString('ru-RU')} ₽
+                  <span className={cn('font-semibold', discountAmount > 0 ? 'line-through text-slate-400' : 'text-slate-900 dark:text-slate-100')}>
+                    {roomBaseTotal.toLocaleString('ru-RU')} ₽
                   </span>
                 </div>
               ) : (
@@ -563,8 +632,18 @@ export function BookingModal({ open, draft, rooms, onClose, onSave, existing }:
                   <span className="text-sm text-slate-600 dark:text-slate-300">
                     {nights} {nights === 1 ? 'ночь' : nights < 5 ? 'ночи' : 'ночей'} × {room.baseRate.toLocaleString('ru-RU')} ₽
                   </span>
-                  <span className="font-semibold text-slate-900 dark:text-slate-100">
-                    {roomTotal.toLocaleString('ru-RU')} ₽
+                  <span className={cn('font-semibold', discountAmount > 0 ? 'line-through text-slate-400' : 'text-slate-900 dark:text-slate-100')}>
+                    {roomBaseTotal.toLocaleString('ru-RU')} ₽
+                  </span>
+                </div>
+              )}
+              {discountAmount > 0 && (
+                <div className="flex items-center justify-between text-sm">
+                  <span className="text-emerald-600 dark:text-emerald-400">
+                    {isFreeStay ? 'Бесплатное проживание' : `Скидка${discountType === 'percent' ? ` ${discountValue}%` : ''}`}
+                  </span>
+                  <span className="font-semibold text-emerald-600 dark:text-emerald-400">
+                    −{discountAmount.toLocaleString('ru-RU')} ₽
                   </span>
                 </div>
               )}
@@ -574,13 +653,13 @@ export function BookingModal({ open, draft, rooms, onClose, onSave, existing }:
                   <span className="font-semibold text-slate-900 dark:text-slate-100">{servicesTotal.toLocaleString('ru-RU')} ₽</span>
                 </div>
               )}
-              {servicesTotal > 0 && (
+              {(servicesTotal > 0 || discountAmount > 0) && (
                 <div className="flex items-center justify-between border-t border-slate-200 dark:border-slate-600 pt-1.5">
                   <span className="text-sm font-medium text-slate-700 dark:text-slate-200">Итого</span>
                   <span className="text-xl font-bold text-slate-900 dark:text-slate-100">{total.toLocaleString('ru-RU')} ₽</span>
                 </div>
               )}
-              {servicesTotal === 0 && (
+              {servicesTotal === 0 && discountAmount === 0 && (
                 <div className="text-xl font-bold text-slate-900 dark:text-slate-100 text-right">{total.toLocaleString('ru-RU')} ₽</div>
               )}
               {paidAmount > 0 && (

src/components/layout/Sidebar.tsx

@@ -1,7 +1,7 @@
 import { NavLink, useNavigate } from 'react-router-dom'
 import {
   CalendarDays, BookOpen, BedDouble, Globe, Settings,
-  FileText, LayoutDashboard, Building2, Users, X, Hotel, Puzzle, CalendarRange, Map, LayoutGrid, UserCog,
+  FileText, LayoutDashboard, Building2, Users, X, Hotel, Puzzle, CalendarRange, Map, LayoutGrid, UserCog, UsersRound,
 } from 'lucide-react'
 import { useAuth } from '../../contexts/AuthContext'
 import { useModules } from '../../contexts/ModulesContext'
@@ -120,6 +120,7 @@ export function Sidebar({ open, onClose }: SidebarProps) {
               {!isHousekeeper && (
                 <>
                   <NavItem to="/bookings"        icon={BookOpen}     label="Бронирования"      onClick={onClose} />
+                  <NavItem to="/guests"          icon={UsersRound}   label="Гости"             onClick={onClose} />
                   <NavItem to="/rooms"            icon={BedDouble}    label="Номера"            onClick={onClose} />
                   <NavItem to="/room-categories" icon={LayoutGrid}   label="Категории номеров" onClick={onClose} />
                   <NavItem to="/availability"    icon={CalendarRange} label="Доступность"      onClick={onClose} />