feat(web): доработка UX/UI — дашборд, навигация и data foundation

Добавлены syncLog в snapshot, API статистики дашборда и маппинг цен тарифов; переработаны shell, главная страница, empty states и новые экраны журнала синка и проектов.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/queries/dashboard.ts

@@ -0,0 +1,26 @@
+import { api } from '@/lib/api-client'
+
+export interface DashboardStats {
+  activeVpsCount: number
+  totalVpsCount: number
+  providerCount: number
+  accountCount: number
+  monthlyBurnEstimate: number
+  totalBalanceApi: number
+  minRunwayDays: number | null
+  expiringWithin7Days: number
+  issuesCount: number
+  lastGlobalSyncAt: string | null
+  staleSyncAccountCount: number
+  lowBalanceAccountCount: number
+}
+
+export const dashboardKeys = {
+  stats: ['dashboard', 'stats'] as const,
+}
+
+export const dashboardStatsQueryOptions = () => ({
+  queryKey: dashboardKeys.stats,
+  queryFn: () => api.fetchDashboardStats(),
+  staleTime: 30_000,
+})