feat(AppVersion): Add version tracking system for frontend cache invalidation

- Add AppVersion entity with CurrentVersion, MinRequiredVersion, RequiresFullCacheClear
- Add GetAppVersion query to check app version and compare with client version
- Add GetAllAppVersions query for admin panel
- Add UpdateAppVersion command to update/create app versions
- Add appversion.proto for gRPC communication
- Add AppVersionService for gRPC endpoints
- Add database migration for AppVersions table

src/CMSMicroservice.Application/AppVersionCQ/Queries/GetAllAppVersions/GetAllAppVersionsQuery.cs

@@ -0,0 +1,23 @@
+namespace CMSMicroservice.Application.AppVersionCQ.Queries.GetAllAppVersions;
+
+/// <summary>
+/// Query برای دریافت همه نسخه‌های اپلیکیشن‌ها
+/// </summary>
+public record GetAllAppVersionsQuery(bool IncludeInactive = false) : IRequest<List<AppVersionItemDto>>;
+
+/// <summary>
+/// DTO برای هر آیتم نسخه اپلیکیشن
+/// </summary>
+public record AppVersionItemDto
+{
+    public long Id { get; init; }
+    public string AppName { get; init; } = string.Empty;
+    public string CurrentVersion { get; init; } = string.Empty;
+    public string MinRequiredVersion { get; init; } = string.Empty;
+    public bool RequiresFullCacheClear { get; init; }
+    public string? UpdateMessage { get; init; }
+    public string? ReleaseNotes { get; init; }
+    public bool IsActive { get; init; }
+    public DateTime Created { get; init; }
+    public DateTime? LastModified { get; init; }
+}

src/CMSMicroservice.Application/AppVersionCQ/Queries/GetAllAppVersions/GetAllAppVersionsQueryHandler.cs

@@ -0,0 +1,44 @@
+namespace CMSMicroservice.Application.AppVersionCQ.Queries.GetAllAppVersions;
+
+/// <summary>
+/// Handler برای دریافت همه نسخه‌های اپلیکیشن‌ها
+/// </summary>
+public class GetAllAppVersionsQueryHandler : IRequestHandler<GetAllAppVersionsQuery, List<AppVersionItemDto>>
+{
+    private readonly IApplicationDbContext _context;
+
+    public GetAllAppVersionsQueryHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<List<AppVersionItemDto>> Handle(GetAllAppVersionsQuery request, CancellationToken cancellationToken)
+    {
+        var query = _context.AppVersions
+            .Where(v => !v.IsDeleted);
+
+        if (!request.IncludeInactive)
+        {
+            query = query.Where(v => v.IsActive);
+        }
+
+        var versions = await query
+            .OrderBy(v => v.AppName)
+            .Select(v => new AppVersionItemDto
+            {
+                Id = v.Id,
+                AppName = v.AppName,
+                CurrentVersion = v.CurrentVersion,
+                MinRequiredVersion = v.MinRequiredVersion,
+                RequiresFullCacheClear = v.RequiresFullCacheClear,
+                UpdateMessage = v.UpdateMessage,
+                ReleaseNotes = v.ReleaseNotes,
+                IsActive = v.IsActive,
+                Created = v.Created,
+                LastModified = v.LastModified
+            })
+            .ToListAsync(cancellationToken);
+
+        return versions;
+    }
+}