fix(backend): add missing domain foreign keys

backend/src/Socialize.Api/Modules/Approvals/Data/ApprovalModelConfiguration.cs

@@ -1,4 +1,6 @@
 using Microsoft.EntityFrameworkCore;
+using Socialize.Api.Modules.ContentItems.Data;
+using Socialize.Api.Modules.Workspaces.Data;
 
 namespace Socialize.Api.Modules.Approvals.Data;
 
@@ -20,6 +22,14 @@ internal static class ApprovalModelConfiguration
             workflowInstance.HasIndex(x => new { x.ContentItemId, x.State })
                 .IsUnique()
                 .HasFilter("\"State\" = 'Pending'");
+            workflowInstance.HasOne<Workspace>()
+                .WithMany()
+                .HasForeignKey(x => x.WorkspaceId)
+                .OnDelete(DeleteBehavior.Restrict);
+            workflowInstance.HasOne<ContentItem>()
+                .WithMany()
+                .HasForeignKey(x => x.ContentItemId)
+                .OnDelete(DeleteBehavior.Restrict);
         });
 
         modelBuilder.Entity<ApprovalRequest>(approvalRequest =>
@@ -40,6 +50,18 @@ internal static class ApprovalModelConfiguration
             approvalRequest.HasIndex(x => x.ContentItemId);
             approvalRequest.HasIndex(x => x.WorkflowInstanceId);
             approvalRequest.HasIndex(x => x.ReviewerEmail);
+            approvalRequest.HasOne<Workspace>()
+                .WithMany()
+                .HasForeignKey(x => x.WorkspaceId)
+                .OnDelete(DeleteBehavior.Restrict);
+            approvalRequest.HasOne<ContentItem>()
+                .WithMany()
+                .HasForeignKey(x => x.ContentItemId)
+                .OnDelete(DeleteBehavior.Restrict);
+            approvalRequest.HasOne<ApprovalWorkflowInstance>()
+                .WithMany()
+                .HasForeignKey(x => x.WorkflowInstanceId)
+                .OnDelete(DeleteBehavior.Restrict);
         });
 
         modelBuilder.Entity<ApprovalDecision>(approvalDecision =>
@@ -54,6 +76,10 @@ internal static class ApprovalModelConfiguration
                 .ValueGeneratedOnAdd()
                 .HasDefaultValueSql("CURRENT_TIMESTAMP");
             approvalDecision.HasIndex(x => x.ApprovalRequestId);
+            approvalDecision.HasOne<ApprovalRequest>()
+                .WithMany()
+                .HasForeignKey(x => x.ApprovalRequestId)
+                .OnDelete(DeleteBehavior.Restrict);
         });
 
         modelBuilder.Entity<WorkspaceApprovalStepConfiguration>(approvalStep =>
@@ -69,6 +95,10 @@ internal static class ApprovalModelConfiguration
                 .HasDefaultValueSql("CURRENT_TIMESTAMP");
             approvalStep.HasIndex(x => x.WorkspaceId);
             approvalStep.HasIndex(x => new { x.WorkspaceId, x.SortOrder }).IsUnique();
+            approvalStep.HasOne<Workspace>()
+                .WithMany()
+                .HasForeignKey(x => x.WorkspaceId)
+                .OnDelete(DeleteBehavior.Restrict);
         });
 
         return modelBuilder;