feat(ui): implement comprehensive dashboard and enhance frontend experience

This commit introduces a major overhaul of the user interface, transitioning from a basic structure to a feature-rich dashboard system. Key improvements include:

- **Dashboard Implementation**: Added a complete dashboard routing system with dedicated pages for Overview, Bookings, Customers, Zones, Billing, and Settings.
- **New UI Components**: Introduced a variety of high-quality components including `AnimatedList`, `FloatingDock`, `HoverFeatureCards`, `VideoPlayer` (with ambient glow effect), `PinnedList`, and `DashboardMockup`.
- **Enhanced Dashboard Features**:
    - Integrated real-time KPI cards and activity timelines.
    - Implemented a multi-view calendar system.
    - Added customer and booking management interfaces with filtering and search capabilities.
    - Added a zone/location management view with map integration.
- **Branding & Visuals**: Updated the application with new SVG logos (horizontal and vertical variants) and implemented dark/light mode optimized branding.
- **Internationalization**: Expanded i18n support with comprehensive Czech and English translations for the new dashboard and integration modules.
- **Integration Tools**: Added a new `IntegrationModal` allowing users to easily embed Bookra widgets via HTML, React, SolidJS, or PHP.
- **Backend Support**: Updated the booking service to provide comprehensive dashboard summary data, including historical booking records for charts.

apps/backend/internal/bookings/service.go

@@ -336,6 +336,25 @@ func (s *Service) DashboardSummary(ctx context.Context, principal domain.Princip
 		upcoming = upcoming[:5]
 	}
 
+	// Fetch all bookings for the last 30 days + next 30 days for chart and bookings page
+	allFrom := now.AddDate(0, 0, -30)
+	allTo := now.AddDate(0, 0, 30)
+	allRecords, err := s.repo.ListBookingsByTenantBetween(ctx, membership.Tenant.ID, allFrom, allTo)
+	if err != nil {
+		return domain.DashboardSummary{}, err
+	}
+	allBookings := make([]domain.UpcomingBooking, 0, len(allRecords))
+	for _, booking := range allRecords {
+		allBookings = append(allBookings, domain.UpcomingBooking{
+			Reference:     booking.Reference,
+			CustomerName:  booking.CustomerName,
+			CustomerEmail: booking.CustomerEmail,
+			StartsAt:      booking.StartsAt,
+			EndsAt:        booking.EndsAt,
+			Status:        booking.Status,
+		})
+	}
+
 	return domain.DashboardSummary{
 		TenantName:       membership.Tenant.Name,
 		TenantSlug:       membership.Tenant.Slug,
@@ -350,6 +369,7 @@ func (s *Service) DashboardSummary(ctx context.Context, principal domain.Princip
 			{Code: "utilization", Label: "Utilization", Value: fmt.Sprintf("%d%%", metrics.UtilizationPercent)},
 		},
 		UpcomingBookings: upcoming,
+		AllBookings:      allBookings,
 		WidgetSnippets:   widgetSnippets(membership.Tenant),
 		Tracking:         trackingStatus(s.repo, ctx, membership.Tenant),
 	}, nil