feat: Implement Commission and Network Statistics Pages with DTOs and Services

- Added CommissionDashboardPage and CommissionHistoryPage for displaying commission payouts and history.
- Implemented WeeklyBalancePage to show weekly balance details.
- Created NetworkStatisticsPage to display network statistics and tree structure.
- Developed corresponding services (CommissionService, NetworkMembershipService) for data retrieval.
- Introduced DTOs for Commission and Network data structures (CommissionPayoutDto, WeeklyBalanceDto, NetworkStatisticsDto).
- Added mock data generation for testing purposes in services.
- Enhanced UI with MudBlazor components for better user experience.

src/FrontOffice.Main/Utilities/NetworkMembershipDtos.cs

@@ -0,0 +1,50 @@
+namespace FrontOffice.Main.Utilities;
+
+/// <summary>
+/// DTO for Network Tree node
+/// </summary>
+public class NetworkNodeDto
+{
+    public long UserId { get; set; }
+    public string FullName { get; set; } = string.Empty;
+    public string Mobile { get; set; } = string.Empty;
+    public string? Avatar { get; set; }
+    public string Position { get; set; } = string.Empty; // "Left" or "Right"
+    public NetworkNodeDto? LeftChild { get; set; }
+    public NetworkNodeDto? RightChild { get; set; }
+    public int Level { get; set; }
+}
+
+/// <summary>
+/// DTO for Network Tree response
+/// </summary>
+public class NetworkTreeDto
+{
+    public NetworkNodeDto? RootNode { get; set; }
+    public int TotalMembers { get; set; }
+    public int CurrentDepth { get; set; }
+}
+
+/// <summary>
+/// DTO for Last Member info
+/// </summary>
+public class LastMemberDto
+{
+    public long UserId { get; set; }
+    public string FullName { get; set; } = string.Empty;
+    public string Position { get; set; } = string.Empty;
+    public DateTime JoinedAt { get; set; }
+}
+
+/// <summary>
+/// DTO for Network Statistics
+/// </summary>
+public class NetworkStatisticsDto
+{
+    public int LeftLegCount { get; set; }
+    public int RightLegCount { get; set; }
+    public int TotalMembers { get; set; }
+    public int TreeDepth { get; set; }
+    public string WeakerLeg { get; set; } = string.Empty; // "Left" or "Right"
+    public LastMemberDto? LastMember { get; set; }
+}