Use DTOs to return API requests instead of Database Schema types.

Make use of IHttpStatusCodeResults

API/Controllers/DTOs/Manga.cs

@@ -0,0 +1,66 @@
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using API.Schema.MangaContext;
+
+namespace API.Controllers.DTOs;
+
+/// <summary>
+/// <see cref="Schema.MangaContext.Manga"/> DTO
+/// </summary>
+public record Manga(string Key, string Name, string Description, MangaReleaseStatus ReleaseStatus, IEnumerable<MangaConnectorId> MangaConnectorIds, float IgnoreChaptersBefore, uint? Year, string? OriginalLanguage, IEnumerable<string> ChapterIds, IEnumerable<Author> Authors, IEnumerable<string> Tags, IEnumerable<Link> Links, IEnumerable<AltTitle> AltTitles)
+    : MinimalManga(Key, Name, Description, ReleaseStatus, MangaConnectorIds)
+{
+    /// <summary>
+    /// Chapter cutoff for Downloads (Chapters before this will not be downloaded)
+    /// </summary>
+    [Required]
+    [Description("Chapter cutoff for Downloads (Chapters before this will not be downloaded)")]
+    public float IgnoreChaptersBefore { get; init; } = IgnoreChaptersBefore;
+    
+    /// <summary>
+    /// Release Year
+    /// </summary>
+    [Description("Release Year")]
+    public uint? Year { get; init; } = Year;
+    
+    /// <summary>
+    /// Release Language
+    /// </summary>
+    [Description("Release Language")]
+    public string? OriginalLanguage { get; init; } = OriginalLanguage;
+    
+    /// <summary>
+    /// Keys of ChapterDTOs
+    /// </summary>
+    [Required]
+    [Description("Keys of ChapterDTOs")]
+    public IEnumerable<string> ChapterIds { get; init; } = ChapterIds;
+    
+    /// <summary>
+    /// Author-names
+    /// </summary>
+    [Required]
+    [Description("Author-names")]
+    public IEnumerable<Author> Authors { get; init; } = Authors;
+    
+    /// <summary>
+    /// Manga Tags
+    /// </summary>
+    [Required]
+    [Description("Manga Tags")]
+    public IEnumerable<string> Tags { get; init; } = Tags;
+    
+    /// <summary>
+    /// Links for more Metadata
+    /// </summary>
+    [Required]
+    [Description("Links for more Metadata")]
+    public IEnumerable<Link> Links { get; init; } = Links;
+    
+    /// <summary>
+    /// Alt Titles of Manga
+    /// </summary>
+    [Required]
+    [Description("Alt Titles of Manga")]
+    public IEnumerable<AltTitle> AltTitles { get; init; } = AltTitles;
+}