feat: Add SitePageSettings - simplified page management system

- New entities: SitePageSettings + SitePageImage (4 fixed pages)
- EF Migration: AddSitePageSettings (SitePageSettings + SitePageImages tables)
- Proto: sitepagesettings.proto with 5 RPCs
- CQRS: GetPageSettings, GetAllPageSettings, SavePageSettings, SavePageImage, DeletePageImage
- gRPC Service: SitePageSettingsService (auto-registered)
- Proto NuGet bumped to 0.0.180

src/CMSMicroservice.Application/Common/Interfaces/IApplicationDbContext.cs

@@ -80,6 +80,10 @@ public interface IApplicationDbContext
     DbSet<SitePage> SitePages { get; }
     DbSet<SitePageSection> SitePageSections { get; }
     
+    // ============= Site Page Settings (Simplified) =============
+    DbSet<SitePageSettings> SitePageSettingsEntities { get; }
+    DbSet<SitePageImage> SitePageImages { get; }
+    
     /// <summary>
     /// دسترسی به DatabaseFacade برای اجرای raw SQL و Stored Procedures
     /// </summary>

src/CMSMicroservice.Application/Features/SitePageSettingsCQ/Commands/DeletePageImage/DeletePageImageCommand.cs

@@ -0,0 +1,36 @@
+using CMSMicroservice.Application.Common.Interfaces;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace CMSMicroservice.Application.SitePageSettingsCQ.Commands.DeletePageImage;
+
+// ── Command ──
+public class DeletePageImageCommand : IRequest<Unit>
+{
+    public long Id { get; set; }
+}
+
+// ── Handler ──
+public class DeletePageImageCommandHandler : IRequestHandler<DeletePageImageCommand, Unit>
+{
+    private readonly IApplicationDbContext _context;
+
+    public DeletePageImageCommandHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<Unit> Handle(DeletePageImageCommand request, CancellationToken cancellationToken)
+    {
+        var entity = await _context.SitePageImages
+            .FirstOrDefaultAsync(x => x.Id == request.Id && !x.IsDeleted, cancellationToken);
+
+        if (entity != null)
+        {
+            entity.IsDeleted = true; // Soft delete
+            await _context.SaveChangesAsync(cancellationToken);
+        }
+
+        return Unit.Value;
+    }
+}

src/CMSMicroservice.Application/Features/SitePageSettingsCQ/Commands/SavePageImage/SavePageImageCommand.cs

@@ -0,0 +1,96 @@
+using CMSMicroservice.Application.Common.FileManager;
+using CMSMicroservice.Application.Common.Interfaces;
+using CMSMicroservice.Domain.Entities.Content;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace CMSMicroservice.Application.SitePageSettingsCQ.Commands.SavePageImage;
+
+// ── Command ──
+public class SavePageImageCommand : IRequest<SavePageImageResult>
+{
+    public long Id { get; set; }  // 0 = ایجاد جدید
+    public long SitePageSettingsId { get; set; }
+    public string ImageGroup { get; set; } = default!;
+    public string? Title { get; set; }
+    public string? Subtitle { get; set; }
+    public string? Description { get; set; }
+    public string? LinkUrl { get; set; }
+    public string? IconName { get; set; }
+    public int SortOrder { get; set; }
+    public bool IsActive { get; set; } = true;
+
+    // Image upload
+    public byte[]? ImageFileBytes { get; set; }
+    public string? ImageFileMime { get; set; }
+    public string? ImageFileName { get; set; }
+}
+
+public class SavePageImageResult
+{
+    public long Id { get; set; }
+    public bool Success { get; set; }
+}
+
+// ── Handler ──
+public class SavePageImageCommandHandler : IRequestHandler<SavePageImageCommand, SavePageImageResult>
+{
+    private readonly IApplicationDbContext _context;
+    private readonly IFileManager _fileManager;
+
+    public SavePageImageCommandHandler(IApplicationDbContext context, IFileManager fileManager)
+    {
+        _context = context;
+        _fileManager = fileManager;
+    }
+
+    public async Task<SavePageImageResult> Handle(SavePageImageCommand request, CancellationToken cancellationToken)
+    {
+        SitePageImage entity;
+
+        if (request.Id > 0)
+        {
+            // ویرایش
+            entity = await _context.SitePageImages
+                .FirstOrDefaultAsync(x => x.Id == request.Id && !x.IsDeleted, cancellationToken)
+                ?? throw new Exception($"تصویر با شناسه {request.Id} یافت نشد");
+        }
+        else
+        {
+            // ایجاد جدید
+            entity = new SitePageImage
+            {
+                SitePageSettingsId = request.SitePageSettingsId,
+                ImageGroup = request.ImageGroup,
+                ImagePath = string.Empty // placeholder — will be set below
+            };
+            _context.SitePageImages.Add(entity);
+        }
+
+        entity.Title = request.Title;
+        entity.Subtitle = request.Subtitle;
+        entity.Description = request.Description;
+        entity.LinkUrl = request.LinkUrl;
+        entity.IconName = request.IconName;
+        entity.SortOrder = request.SortOrder;
+        entity.IsActive = request.IsActive;
+
+        // آپلود تصویر
+        if (request.ImageFileBytes is { Length: > 0 })
+        {
+            var result = await _fileManager.UploadImageAsync(
+                $"Images/SitePageSettings/{request.ImageGroup}",
+                request.ImageFileBytes,
+                request.ImageFileMime ?? "image/jpeg",
+                request.ImageFileName,
+                cancellationToken);
+
+            entity.ImagePath = result.Main.Path;
+            entity.ThumbnailPath = result.Thumbnail.Path;
+        }
+
+        await _context.SaveChangesAsync(cancellationToken);
+
+        return new SavePageImageResult { Id = entity.Id, Success = true };
+    }
+}

src/CMSMicroservice.Application/Features/SitePageSettingsCQ/Commands/SavePageSettings/SavePageSettingsCommand.cs

@@ -0,0 +1,83 @@
+using CMSMicroservice.Application.Common.FileManager;
+using CMSMicroservice.Application.Common.Interfaces;
+using CMSMicroservice.Domain.Entities.Content;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace CMSMicroservice.Application.SitePageSettingsCQ.Commands.SavePageSettings;
+
+// ── Command ──
+public class SavePageSettingsCommand : IRequest<SavePageSettingsResult>
+{
+    public string PageKey { get; set; } = default!;
+    public string Title { get; set; } = default!;
+    public string? MetaDescription { get; set; }
+    public string? HeroTitle { get; set; }
+    public string? HeroSubtitle { get; set; }
+    public bool IsActive { get; set; }
+    public string? SettingsJson { get; set; }
+
+    // Hero image upload
+    public byte[]? ImageFileBytes { get; set; }
+    public string? ImageFileMime { get; set; }
+    public string? ImageFileName { get; set; }
+}
+
+public class SavePageSettingsResult
+{
+    public long Id { get; set; }
+    public bool Success { get; set; }
+}
+
+// ── Handler ──
+public class SavePageSettingsCommandHandler : IRequestHandler<SavePageSettingsCommand, SavePageSettingsResult>
+{
+    private readonly IApplicationDbContext _context;
+    private readonly IFileManager _fileManager;
+
+    public SavePageSettingsCommandHandler(IApplicationDbContext context, IFileManager fileManager)
+    {
+        _context = context;
+        _fileManager = fileManager;
+    }
+
+    public async Task<SavePageSettingsResult> Handle(SavePageSettingsCommand request, CancellationToken cancellationToken)
+    {
+        var entity = await _context.SitePageSettingsEntities
+            .FirstOrDefaultAsync(x => x.PageKey == request.PageKey && !x.IsDeleted, cancellationToken);
+
+        if (entity == null)
+        {
+            // ایجاد صفحه جدید (فقط برای seed اولیه — صفحات ثابت هستند)
+            entity = new SitePageSettings
+            {
+                PageKey = request.PageKey,
+            };
+            _context.SitePageSettingsEntities.Add(entity);
+        }
+
+        entity.Title = request.Title;
+        entity.MetaDescription = request.MetaDescription;
+        entity.HeroTitle = request.HeroTitle;
+        entity.HeroSubtitle = request.HeroSubtitle;
+        entity.IsActive = request.IsActive;
+        entity.SettingsJson = request.SettingsJson;
+
+        // آپلود تصویر هیرو
+        if (request.ImageFileBytes is { Length: > 0 })
+        {
+            var result = await _fileManager.UploadImageAsync(
+                "Images/SitePageSettings",
+                request.ImageFileBytes,
+                request.ImageFileMime ?? "image/jpeg",
+                request.ImageFileName,
+                cancellationToken);
+
+            entity.HeroImagePath = result.Main.Path;
+        }
+
+        await _context.SaveChangesAsync(cancellationToken);
+
+        return new SavePageSettingsResult { Id = entity.Id, Success = true };
+    }
+}

src/CMSMicroservice.Application/Features/SitePageSettingsCQ/Commands/SavePageSettings/SavePageSettingsCommandValidator.cs

@@ -0,0 +1,30 @@
+using FluentValidation;
+
+namespace CMSMicroservice.Application.SitePageSettingsCQ.Commands.SavePageSettings;
+
+public class SavePageSettingsCommandValidator : AbstractValidator<SavePageSettingsCommand>
+{
+    private static readonly string[] ValidPageKeys = { "landing", "about", "contact", "licenses" };
+
+    public SavePageSettingsCommandValidator()
+    {
+        RuleFor(x => x.PageKey)
+            .NotEmpty().WithMessage("کلید صفحه الزامی است")
+            .MaximumLength(50)
+            .Must(key => ValidPageKeys.Contains(key))
+            .WithMessage("کلید صفحه باید یکی از مقادیر landing, about, contact, licenses باشد");
+
+        RuleFor(x => x.Title)
+            .NotEmpty().WithMessage("عنوان صفحه الزامی است")
+            .MaximumLength(200).WithMessage("عنوان صفحه حداکثر ۲۰۰ کاراکتر");
+
+        RuleFor(x => x.MetaDescription)
+            .MaximumLength(300).WithMessage("توضیحات متا حداکثر ۳۰۰ کاراکتر");
+
+        RuleFor(x => x.HeroTitle)
+            .MaximumLength(200).WithMessage("عنوان هیرو حداکثر ۲۰۰ کاراکتر");
+
+        RuleFor(x => x.HeroSubtitle)
+            .MaximumLength(500).WithMessage("زیرعنوان هیرو حداکثر ۵۰۰ کاراکتر");
+    }
+}

src/CMSMicroservice.Application/Features/SitePageSettingsCQ/Queries/GetAllPageSettings/GetAllPageSettingsQuery.cs

@@ -0,0 +1,49 @@
+using CMSMicroservice.Application.Common.Interfaces;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace CMSMicroservice.Application.SitePageSettingsCQ.Queries.GetAllPageSettings;
+
+// ── Query ──
+public class GetAllPageSettingsQuery : IRequest<List<PageSettingsSummaryDto>>
+{
+}
+
+// ── Handler ──
+public class GetAllPageSettingsQueryHandler : IRequestHandler<GetAllPageSettingsQuery, List<PageSettingsSummaryDto>>
+{
+    private readonly IApplicationDbContext _context;
+
+    public GetAllPageSettingsQueryHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<List<PageSettingsSummaryDto>> Handle(GetAllPageSettingsQuery request, CancellationToken cancellationToken)
+    {
+        return await _context.SitePageSettingsEntities
+            .Where(x => !x.IsDeleted)
+            .OrderBy(x => x.Id)
+            .Select(x => new PageSettingsSummaryDto
+            {
+                Id = x.Id,
+                PageKey = x.PageKey,
+                Title = x.Title,
+                IsActive = x.IsActive,
+                ImageCount = x.Images.Count(i => !i.IsDeleted),
+                LastModified = x.LastModified ?? x.Created
+            })
+            .ToListAsync(cancellationToken);
+    }
+}
+
+// ── DTO ──
+public class PageSettingsSummaryDto
+{
+    public long Id { get; set; }
+    public string PageKey { get; set; } = string.Empty;
+    public string Title { get; set; } = string.Empty;
+    public bool IsActive { get; set; }
+    public int ImageCount { get; set; }
+    public DateTime LastModified { get; set; }
+}

src/CMSMicroservice.Application/Features/SitePageSettingsCQ/Queries/GetPageSettings/GetPageSettingsQuery.cs

@@ -0,0 +1,92 @@
+using CMSMicroservice.Application.Common.Interfaces;
+using CMSMicroservice.Domain.Entities.Content;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace CMSMicroservice.Application.SitePageSettingsCQ.Queries.GetPageSettings;
+
+// ── Query ──
+public class GetPageSettingsQuery : IRequest<PageSettingsDto?>
+{
+    public string PageKey { get; set; } = default!;
+}
+
+// ── Handler ──
+public class GetPageSettingsQueryHandler : IRequestHandler<GetPageSettingsQuery, PageSettingsDto?>
+{
+    private readonly IApplicationDbContext _context;
+
+    public GetPageSettingsQueryHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<PageSettingsDto?> Handle(GetPageSettingsQuery request, CancellationToken cancellationToken)
+    {
+        var entity = await _context.SitePageSettingsEntities
+            .Include(x => x.Images.Where(i => !i.IsDeleted && i.IsActive).OrderBy(i => i.SortOrder))
+            .FirstOrDefaultAsync(x => x.PageKey == request.PageKey && !x.IsDeleted, cancellationToken);
+
+        if (entity == null)
+            return null;
+
+        return MapToDto(entity);
+    }
+
+    public static PageSettingsDto MapToDto(SitePageSettings entity) => new()
+    {
+        Id = entity.Id,
+        PageKey = entity.PageKey,
+        Title = entity.Title,
+        MetaDescription = entity.MetaDescription,
+        HeroTitle = entity.HeroTitle,
+        HeroSubtitle = entity.HeroSubtitle,
+        HeroImagePath = entity.HeroImagePath,
+        IsActive = entity.IsActive,
+        SettingsJson = entity.SettingsJson,
+        Images = entity.Images.Select(i => new PageImageDto
+        {
+            Id = i.Id,
+            ImageGroup = i.ImageGroup,
+            Title = i.Title,
+            Subtitle = i.Subtitle,
+            Description = i.Description,
+            ImagePath = i.ImagePath,
+            ThumbnailPath = i.ThumbnailPath,
+            LinkUrl = i.LinkUrl,
+            IconName = i.IconName,
+            SortOrder = i.SortOrder,
+            IsActive = i.IsActive
+        }).ToList()
+    };
+}
+
+// ── DTOs ──
+public class PageSettingsDto
+{
+    public long Id { get; set; }
+    public string PageKey { get; set; } = string.Empty;
+    public string Title { get; set; } = string.Empty;
+    public string? MetaDescription { get; set; }
+    public string? HeroTitle { get; set; }
+    public string? HeroSubtitle { get; set; }
+    public string? HeroImagePath { get; set; }
+    public bool IsActive { get; set; }
+    public string? SettingsJson { get; set; }
+    public List<PageImageDto> Images { get; set; } = new();
+}
+
+public class PageImageDto
+{
+    public long Id { get; set; }
+    public string ImageGroup { get; set; } = string.Empty;
+    public string? Title { get; set; }
+    public string? Subtitle { get; set; }
+    public string? Description { get; set; }
+    public string ImagePath { get; set; } = string.Empty;
+    public string? ThumbnailPath { get; set; }
+    public string? LinkUrl { get; set; }
+    public string? IconName { get; set; }
+    public int SortOrder { get; set; }
+    public bool IsActive { get; set; }
+}