feat: Implement OAuth2 authentication with Microsoft, Google, and PocketId

- Added JWT configuration to appsettings.json for secure token handling.
- Updated config.json to include OAuth provider details for Microsoft, Google, and PocketId.
- Added Microsoft icon SVG for UI representation.
- Refactored app.config.ts to use a custom AuthInterceptor for managing access tokens.
- Enhanced auth route guard to handle asynchronous authentication checks.
- Created new auth models for structured request and response handling.
- Developed a callback component to manage user login states and transitions.
- Updated side-login component to support multiple OAuth providers with loading states.
- Implemented authentication service methods for handling OAuth login flows and token management.
- Added error handling and user feedback for authentication processes.

Api/Migrations/AppDbContextModelSnapshot.cs

@@ -1,4 +1,5 @@
 // <auto-generated />
+using System;
 using Api.Models;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
@@ -48,6 +49,91 @@ namespace Api.Migrations
                         });
                 });
 
+            modelBuilder.Entity("Api.Models.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("nvarchar(255)");
+
+                    b.Property<string>("FirstName")
+                        .HasMaxLength(255)
+                        .HasColumnType("nvarchar(255)");
+
+                    b.Property<bool>("IsActive")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("LastLoginAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("LastName")
+                        .HasMaxLength(255)
+                        .HasColumnType("nvarchar(255)");
+
+                    b.Property<string>("ProfilePictureUrl")
+                        .HasMaxLength(500)
+                        .HasColumnType("nvarchar(500)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Email")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("Api.Models.UserOAuthProvider", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("LastUsedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Provider")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ProviderEmail")
+                        .HasMaxLength(255)
+                        .HasColumnType("nvarchar(255)");
+
+                    b.Property<string>("ProviderId")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("nvarchar(255)");
+
+                    b.Property<string>("ProviderName")
+                        .HasMaxLength(255)
+                        .HasColumnType("nvarchar(255)");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.HasIndex("Provider", "ProviderId")
+                        .IsUnique();
+
+                    b.ToTable("UserOAuthProviders");
+                });
+
             modelBuilder.Entity("WebMessage", b =>
                 {
                     b.Property<int>("Id")
@@ -78,6 +164,22 @@ namespace Api.Migrations
 
                     b.ToTable("WebMessages");
                 });
+
+            modelBuilder.Entity("Api.Models.UserOAuthProvider", b =>
+                {
+                    b.HasOne("Api.Models.User", "User")
+                        .WithMany("OAuthProviders")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Api.Models.User", b =>
+                {
+                    b.Navigation("OAuthProviders");
+                });
 #pragma warning restore 612, 618
         }
     }