feat(halloffame): implement image upload and enhance module functionality

- Added image upload system (JPG/PNG, max 5MB) with live preview and removal option
- Fixed Concurrency Exception during deletion (split transactions for reports and entries)
- Optimized card layout: consistent height and height-based truncation for descriptions
- Added sort direction toggle (Ascending/Descending) with arrow icons for Date, Name, and Year
- Refactored HallOfFameService to use streams for Server/Wasm compatibility
- Improved error handling and UI feedback for upload and delete operations

Shared/Models/HallOfFameReport.cs

@@ -0,0 +1,21 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using Oqtane.Models;
+
+namespace SZUAbsolventenverein.Module.HallOfFame.Models
+{
+    [Table("SZUAbsolventenvereinHallOfFameReport")]
+    public class HallOfFameReport : IAuditable
+    {
+        [Key]
+        public int HallOfFameReportId { get; set; }
+        public int HallOfFameId { get; set; }
+        public string Reason { get; set; }
+
+        public string CreatedBy { get; set; }
+        public DateTime CreatedOn { get; set; }
+        public string ModifiedBy { get; set; }
+        public DateTime ModifiedOn { get; set; }
+    }
+}