diff --git a/backend/src/Socialize.Api/Data/AppDbContext.cs b/backend/src/Socialize.Api/Data/AppDbContext.cs
index c1088c4..e4fc389 100644
--- a/backend/src/Socialize.Api/Data/AppDbContext.cs
+++ b/backend/src/Socialize.Api/Data/AppDbContext.cs
@@ -32,195 +32,13 @@ public class AppDbContext(
     {
         base.OnModelCreating(modelBuilder);
 
-        modelBuilder.Entity<Workspace>(workspace =>
-        {
-            workspace.ToTable("Workspaces");
-            workspace.HasKey(x => x.Id);
-            workspace.Property(x => x.Name).HasMaxLength(256).IsRequired();
-            workspace.Property(x => x.Slug).HasMaxLength(128).IsRequired();
-            workspace.Property(x => x.TimeZone).HasMaxLength(128).IsRequired();
-            workspace.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            workspace.HasIndex(x => x.Slug).IsUnique();
-            workspace.HasIndex(x => x.OwnerUserId);
-        });
-
-        modelBuilder.Entity<WorkspaceInvite>(workspaceInvite =>
-        {
-            workspaceInvite.ToTable("WorkspaceInvites");
-            workspaceInvite.HasKey(x => x.Id);
-            workspaceInvite.Property(x => x.Email).HasMaxLength(256).IsRequired();
-            workspaceInvite.Property(x => x.Role).HasMaxLength(64).IsRequired();
-            workspaceInvite.Property(x => x.Status).HasMaxLength(64).IsRequired();
-            workspaceInvite.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            workspaceInvite.HasIndex(x => x.WorkspaceId);
-            workspaceInvite.HasIndex(x => new { x.WorkspaceId, x.Email, x.Status });
-        });
-
-        modelBuilder.Entity<Client>(client =>
-        {
-            client.ToTable("Clients");
-            client.HasKey(x => x.Id);
-            client.Property(x => x.Name).HasMaxLength(256).IsRequired();
-            client.Property(x => x.Status).HasMaxLength(64).IsRequired();
-            client.Property(x => x.PortraitUrl).HasMaxLength(2048);
-            client.Property(x => x.PrimaryContactName).HasMaxLength(256);
-            client.Property(x => x.PrimaryContactEmail).HasMaxLength(256);
-            client.Property(x => x.PrimaryContactPortraitUrl).HasMaxLength(2048);
-            client.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            client.HasIndex(x => new { x.WorkspaceId, x.Name }).IsUnique();
-            client.HasIndex(x => x.WorkspaceId);
-        });
-
-        modelBuilder.Entity<Project>(project =>
-        {
-            project.ToTable("Projects");
-            project.HasKey(x => x.Id);
-            project.Property(x => x.Name).HasMaxLength(256).IsRequired();
-            project.Property(x => x.Description).HasMaxLength(4000);
-            project.Property(x => x.Notes).HasMaxLength(4000);
-            project.Property(x => x.Status).HasMaxLength(64).IsRequired();
-            project.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            project.HasIndex(x => new { x.ClientId, x.Name }).IsUnique();
-            project.HasIndex(x => x.WorkspaceId);
-            project.HasIndex(x => x.ClientId);
-        });
-
-        modelBuilder.Entity<ContentItem>(contentItem =>
-        {
-            contentItem.ToTable("ContentItems");
-            contentItem.HasKey(x => x.Id);
-            contentItem.Property(x => x.Title).HasMaxLength(256).IsRequired();
-            contentItem.Property(x => x.PublicationMessage).HasMaxLength(4000).IsRequired();
-            contentItem.Property(x => x.PublicationTargets).HasMaxLength(512).IsRequired();
-            contentItem.Property(x => x.Hashtags).HasMaxLength(1024);
-            contentItem.Property(x => x.Status).HasMaxLength(64).IsRequired();
-            contentItem.Property(x => x.CurrentRevisionLabel).HasMaxLength(32).IsRequired();
-            contentItem.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            contentItem.HasIndex(x => x.WorkspaceId);
-            contentItem.HasIndex(x => x.ClientId);
-            contentItem.HasIndex(x => x.ProjectId);
-        });
-
-        modelBuilder.Entity<ContentItemRevision>(revision =>
-        {
-            revision.ToTable("ContentItemRevisions");
-            revision.HasKey(x => x.Id);
-            revision.Property(x => x.RevisionLabel).HasMaxLength(32).IsRequired();
-            revision.Property(x => x.Title).HasMaxLength(256).IsRequired();
-            revision.Property(x => x.PublicationMessage).HasMaxLength(4000).IsRequired();
-            revision.Property(x => x.PublicationTargets).HasMaxLength(512).IsRequired();
-            revision.Property(x => x.Hashtags).HasMaxLength(1024);
-            revision.Property(x => x.ChangeSummary).HasMaxLength(1024);
-            revision.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            revision.HasIndex(x => x.ContentItemId);
-            revision.HasIndex(x => new { x.ContentItemId, x.RevisionNumber }).IsUnique();
-        });
-
-        modelBuilder.Entity<Asset>(asset =>
-        {
-            asset.ToTable("Assets");
-            asset.HasKey(x => x.Id);
-            asset.Property(x => x.AssetType).HasMaxLength(64).IsRequired();
-            asset.Property(x => x.SourceType).HasMaxLength(64).IsRequired();
-            asset.Property(x => x.DisplayName).HasMaxLength(256).IsRequired();
-            asset.Property(x => x.GoogleDriveFileId).HasMaxLength(256);
-            asset.Property(x => x.GoogleDriveLink).HasMaxLength(2048);
-            asset.Property(x => x.PreviewUrl).HasMaxLength(2048);
-            asset.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            asset.HasIndex(x => x.WorkspaceId);
-            asset.HasIndex(x => x.ContentItemId);
-        });
-
-        modelBuilder.Entity<AssetRevision>(revision =>
-        {
-            revision.ToTable("AssetRevisions");
-            revision.HasKey(x => x.Id);
-            revision.Property(x => x.SourceReference).HasMaxLength(2048).IsRequired();
-            revision.Property(x => x.PreviewUrl).HasMaxLength(2048);
-            revision.Property(x => x.Notes).HasMaxLength(1024);
-            revision.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            revision.HasIndex(x => x.AssetId);
-            revision.HasIndex(x => new { x.AssetId, x.RevisionNumber }).IsUnique();
-        });
-
-        modelBuilder.Entity<Comment>(comment =>
-        {
-            comment.ToTable("Comments");
-            comment.HasKey(x => x.Id);
-            comment.Property(x => x.AuthorDisplayName).HasMaxLength(256).IsRequired();
-            comment.Property(x => x.AuthorEmail).HasMaxLength(256).IsRequired();
-            comment.Property(x => x.Body).HasMaxLength(4000).IsRequired();
-            comment.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            comment.HasIndex(x => x.WorkspaceId);
-            comment.HasIndex(x => x.ContentItemId);
-            comment.HasIndex(x => x.ParentCommentId);
-        });
-
-        modelBuilder.Entity<ApprovalRequest>(approvalRequest =>
-        {
-            approvalRequest.ToTable("ApprovalRequests");
-            approvalRequest.HasKey(x => x.Id);
-            approvalRequest.Property(x => x.Stage).HasMaxLength(64).IsRequired();
-            approvalRequest.Property(x => x.ReviewerName).HasMaxLength(256).IsRequired();
-            approvalRequest.Property(x => x.ReviewerEmail).HasMaxLength(256).IsRequired();
-            approvalRequest.Property(x => x.State).HasMaxLength(64).IsRequired();
-            approvalRequest.Property(x => x.AccessToken).HasMaxLength(64).IsRequired();
-            approvalRequest.Property(x => x.SentAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            approvalRequest.HasIndex(x => x.WorkspaceId);
-            approvalRequest.HasIndex(x => x.ContentItemId);
-            approvalRequest.HasIndex(x => x.ReviewerEmail);
-        });
-
-        modelBuilder.Entity<ApprovalDecision>(approvalDecision =>
-        {
-            approvalDecision.ToTable("ApprovalDecisions");
-            approvalDecision.HasKey(x => x.Id);
-            approvalDecision.Property(x => x.Decision).HasMaxLength(64).IsRequired();
-            approvalDecision.Property(x => x.Comment).HasMaxLength(2048);
-            approvalDecision.Property(x => x.DecidedByName).HasMaxLength(256).IsRequired();
-            approvalDecision.Property(x => x.DecidedByEmail).HasMaxLength(256).IsRequired();
-            approvalDecision.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            approvalDecision.HasIndex(x => x.ApprovalRequestId);
-        });
-
-        modelBuilder.Entity<NotificationEvent>(notificationEvent =>
-        {
-            notificationEvent.ToTable("NotificationEvents");
-            notificationEvent.HasKey(x => x.Id);
-            notificationEvent.Property(x => x.EventType).HasMaxLength(128).IsRequired();
-            notificationEvent.Property(x => x.EntityType).HasMaxLength(128).IsRequired();
-            notificationEvent.Property(x => x.Message).HasMaxLength(1024).IsRequired();
-            notificationEvent.Property(x => x.RecipientEmail).HasMaxLength(256);
-            notificationEvent.Property(x => x.MetadataJson).HasMaxLength(4000);
-            notificationEvent.Property(x => x.CreatedAt)
-                .ValueGeneratedOnAdd()
-                .HasDefaultValueSql("CURRENT_TIMESTAMP");
-            notificationEvent.HasIndex(x => x.WorkspaceId);
-            notificationEvent.HasIndex(x => x.ContentItemId);
-            notificationEvent.HasIndex(x => x.RecipientUserId);
-            notificationEvent.HasIndex(x => x.CreatedAt);
-        });
+        modelBuilder.ConfigureWorkspacesModule();
+        modelBuilder.ConfigureClientsModule();
+        modelBuilder.ConfigureProjectsModule();
+        modelBuilder.ConfigureContentItemsModule();
+        modelBuilder.ConfigureAssetsModule();
+        modelBuilder.ConfigureCommentsModule();
+        modelBuilder.ConfigureApprovalsModule();
+        modelBuilder.ConfigureNotificationsModule();
     }
 }
diff --git a/backend/src/Socialize.Api/Modules/Approvals/Data/ApprovalModelConfiguration.cs b/backend/src/Socialize.Api/Modules/Approvals/Data/ApprovalModelConfiguration.cs
new file mode 100644
index 0000000..9120d1a
--- /dev/null
+++ b/backend/src/Socialize.Api/Modules/Approvals/Data/ApprovalModelConfiguration.cs
@@ -0,0 +1,40 @@
+namespace Socialize.Modules.Approvals.Data;
+
+public static class ApprovalModelConfiguration
+{
+    public static ModelBuilder ConfigureApprovalsModule(this ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<ApprovalRequest>(approvalRequest =>
+        {
+            approvalRequest.ToTable("ApprovalRequests");
+            approvalRequest.HasKey(x => x.Id);
+            approvalRequest.Property(x => x.Stage).HasMaxLength(64).IsRequired();
+            approvalRequest.Property(x => x.ReviewerName).HasMaxLength(256).IsRequired();
+            approvalRequest.Property(x => x.ReviewerEmail).HasMaxLength(256).IsRequired();
+            approvalRequest.Property(x => x.State).HasMaxLength(64).IsRequired();
+            approvalRequest.Property(x => x.AccessToken).HasMaxLength(64).IsRequired();
+            approvalRequest.Property(x => x.SentAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            approvalRequest.HasIndex(x => x.WorkspaceId);
+            approvalRequest.HasIndex(x => x.ContentItemId);
+            approvalRequest.HasIndex(x => x.ReviewerEmail);
+        });
+
+        modelBuilder.Entity<ApprovalDecision>(approvalDecision =>
+        {
+            approvalDecision.ToTable("ApprovalDecisions");
+            approvalDecision.HasKey(x => x.Id);
+            approvalDecision.Property(x => x.Decision).HasMaxLength(64).IsRequired();
+            approvalDecision.Property(x => x.Comment).HasMaxLength(2048);
+            approvalDecision.Property(x => x.DecidedByName).HasMaxLength(256).IsRequired();
+            approvalDecision.Property(x => x.DecidedByEmail).HasMaxLength(256).IsRequired();
+            approvalDecision.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            approvalDecision.HasIndex(x => x.ApprovalRequestId);
+        });
+
+        return modelBuilder;
+    }
+}
diff --git a/backend/src/Socialize.Api/Modules/Assets/Data/AssetModelConfiguration.cs b/backend/src/Socialize.Api/Modules/Assets/Data/AssetModelConfiguration.cs
new file mode 100644
index 0000000..9be2638
--- /dev/null
+++ b/backend/src/Socialize.Api/Modules/Assets/Data/AssetModelConfiguration.cs
@@ -0,0 +1,40 @@
+namespace Socialize.Modules.Assets.Data;
+
+public static class AssetModelConfiguration
+{
+    public static ModelBuilder ConfigureAssetsModule(this ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Asset>(asset =>
+        {
+            asset.ToTable("Assets");
+            asset.HasKey(x => x.Id);
+            asset.Property(x => x.AssetType).HasMaxLength(64).IsRequired();
+            asset.Property(x => x.SourceType).HasMaxLength(64).IsRequired();
+            asset.Property(x => x.DisplayName).HasMaxLength(256).IsRequired();
+            asset.Property(x => x.GoogleDriveFileId).HasMaxLength(256);
+            asset.Property(x => x.GoogleDriveLink).HasMaxLength(2048);
+            asset.Property(x => x.PreviewUrl).HasMaxLength(2048);
+            asset.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            asset.HasIndex(x => x.WorkspaceId);
+            asset.HasIndex(x => x.ContentItemId);
+        });
+
+        modelBuilder.Entity<AssetRevision>(revision =>
+        {
+            revision.ToTable("AssetRevisions");
+            revision.HasKey(x => x.Id);
+            revision.Property(x => x.SourceReference).HasMaxLength(2048).IsRequired();
+            revision.Property(x => x.PreviewUrl).HasMaxLength(2048);
+            revision.Property(x => x.Notes).HasMaxLength(1024);
+            revision.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            revision.HasIndex(x => x.AssetId);
+            revision.HasIndex(x => new { x.AssetId, x.RevisionNumber }).IsUnique();
+        });
+
+        return modelBuilder;
+    }
+}
diff --git a/backend/src/Socialize.Api/Modules/Clients/Data/ClientModelConfiguration.cs b/backend/src/Socialize.Api/Modules/Clients/Data/ClientModelConfiguration.cs
new file mode 100644
index 0000000..a1082e5
--- /dev/null
+++ b/backend/src/Socialize.Api/Modules/Clients/Data/ClientModelConfiguration.cs
@@ -0,0 +1,26 @@
+namespace Socialize.Modules.Clients.Data;
+
+public static class ClientModelConfiguration
+{
+    public static ModelBuilder ConfigureClientsModule(this ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Client>(client =>
+        {
+            client.ToTable("Clients");
+            client.HasKey(x => x.Id);
+            client.Property(x => x.Name).HasMaxLength(256).IsRequired();
+            client.Property(x => x.Status).HasMaxLength(64).IsRequired();
+            client.Property(x => x.PortraitUrl).HasMaxLength(2048);
+            client.Property(x => x.PrimaryContactName).HasMaxLength(256);
+            client.Property(x => x.PrimaryContactEmail).HasMaxLength(256);
+            client.Property(x => x.PrimaryContactPortraitUrl).HasMaxLength(2048);
+            client.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            client.HasIndex(x => new { x.WorkspaceId, x.Name }).IsUnique();
+            client.HasIndex(x => x.WorkspaceId);
+        });
+
+        return modelBuilder;
+    }
+}
diff --git a/backend/src/Socialize.Api/Modules/Comments/Data/CommentModelConfiguration.cs b/backend/src/Socialize.Api/Modules/Comments/Data/CommentModelConfiguration.cs
new file mode 100644
index 0000000..4970daa
--- /dev/null
+++ b/backend/src/Socialize.Api/Modules/Comments/Data/CommentModelConfiguration.cs
@@ -0,0 +1,24 @@
+namespace Socialize.Modules.Comments.Data;
+
+public static class CommentModelConfiguration
+{
+    public static ModelBuilder ConfigureCommentsModule(this ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Comment>(comment =>
+        {
+            comment.ToTable("Comments");
+            comment.HasKey(x => x.Id);
+            comment.Property(x => x.AuthorDisplayName).HasMaxLength(256).IsRequired();
+            comment.Property(x => x.AuthorEmail).HasMaxLength(256).IsRequired();
+            comment.Property(x => x.Body).HasMaxLength(4000).IsRequired();
+            comment.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            comment.HasIndex(x => x.WorkspaceId);
+            comment.HasIndex(x => x.ContentItemId);
+            comment.HasIndex(x => x.ParentCommentId);
+        });
+
+        return modelBuilder;
+    }
+}
diff --git a/backend/src/Socialize.Api/Modules/ContentItems/Data/ContentItemModelConfiguration.cs b/backend/src/Socialize.Api/Modules/ContentItems/Data/ContentItemModelConfiguration.cs
new file mode 100644
index 0000000..087ac90
--- /dev/null
+++ b/backend/src/Socialize.Api/Modules/ContentItems/Data/ContentItemModelConfiguration.cs
@@ -0,0 +1,44 @@
+namespace Socialize.Modules.ContentItems.Data;
+
+public static class ContentItemModelConfiguration
+{
+    public static ModelBuilder ConfigureContentItemsModule(this ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<ContentItem>(contentItem =>
+        {
+            contentItem.ToTable("ContentItems");
+            contentItem.HasKey(x => x.Id);
+            contentItem.Property(x => x.Title).HasMaxLength(256).IsRequired();
+            contentItem.Property(x => x.PublicationMessage).HasMaxLength(4000).IsRequired();
+            contentItem.Property(x => x.PublicationTargets).HasMaxLength(512).IsRequired();
+            contentItem.Property(x => x.Hashtags).HasMaxLength(1024);
+            contentItem.Property(x => x.Status).HasMaxLength(64).IsRequired();
+            contentItem.Property(x => x.CurrentRevisionLabel).HasMaxLength(32).IsRequired();
+            contentItem.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            contentItem.HasIndex(x => x.WorkspaceId);
+            contentItem.HasIndex(x => x.ClientId);
+            contentItem.HasIndex(x => x.ProjectId);
+        });
+
+        modelBuilder.Entity<ContentItemRevision>(revision =>
+        {
+            revision.ToTable("ContentItemRevisions");
+            revision.HasKey(x => x.Id);
+            revision.Property(x => x.RevisionLabel).HasMaxLength(32).IsRequired();
+            revision.Property(x => x.Title).HasMaxLength(256).IsRequired();
+            revision.Property(x => x.PublicationMessage).HasMaxLength(4000).IsRequired();
+            revision.Property(x => x.PublicationTargets).HasMaxLength(512).IsRequired();
+            revision.Property(x => x.Hashtags).HasMaxLength(1024);
+            revision.Property(x => x.ChangeSummary).HasMaxLength(1024);
+            revision.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            revision.HasIndex(x => x.ContentItemId);
+            revision.HasIndex(x => new { x.ContentItemId, x.RevisionNumber }).IsUnique();
+        });
+
+        return modelBuilder;
+    }
+}
diff --git a/backend/src/Socialize.Api/Modules/Notifications/Data/NotificationModelConfiguration.cs b/backend/src/Socialize.Api/Modules/Notifications/Data/NotificationModelConfiguration.cs
new file mode 100644
index 0000000..9c4c1e1
--- /dev/null
+++ b/backend/src/Socialize.Api/Modules/Notifications/Data/NotificationModelConfiguration.cs
@@ -0,0 +1,27 @@
+namespace Socialize.Modules.Notifications.Data;
+
+public static class NotificationModelConfiguration
+{
+    public static ModelBuilder ConfigureNotificationsModule(this ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<NotificationEvent>(notificationEvent =>
+        {
+            notificationEvent.ToTable("NotificationEvents");
+            notificationEvent.HasKey(x => x.Id);
+            notificationEvent.Property(x => x.EventType).HasMaxLength(128).IsRequired();
+            notificationEvent.Property(x => x.EntityType).HasMaxLength(128).IsRequired();
+            notificationEvent.Property(x => x.Message).HasMaxLength(1024).IsRequired();
+            notificationEvent.Property(x => x.RecipientEmail).HasMaxLength(256);
+            notificationEvent.Property(x => x.MetadataJson).HasMaxLength(4000);
+            notificationEvent.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            notificationEvent.HasIndex(x => x.WorkspaceId);
+            notificationEvent.HasIndex(x => x.ContentItemId);
+            notificationEvent.HasIndex(x => x.RecipientUserId);
+            notificationEvent.HasIndex(x => x.CreatedAt);
+        });
+
+        return modelBuilder;
+    }
+}
diff --git a/backend/src/Socialize.Api/Modules/Projects/Data/ProjectModelConfiguration.cs b/backend/src/Socialize.Api/Modules/Projects/Data/ProjectModelConfiguration.cs
new file mode 100644
index 0000000..0f6fd1d
--- /dev/null
+++ b/backend/src/Socialize.Api/Modules/Projects/Data/ProjectModelConfiguration.cs
@@ -0,0 +1,25 @@
+namespace Socialize.Modules.Projects.Data;
+
+public static class ProjectModelConfiguration
+{
+    public static ModelBuilder ConfigureProjectsModule(this ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Project>(project =>
+        {
+            project.ToTable("Projects");
+            project.HasKey(x => x.Id);
+            project.Property(x => x.Name).HasMaxLength(256).IsRequired();
+            project.Property(x => x.Description).HasMaxLength(4000);
+            project.Property(x => x.Notes).HasMaxLength(4000);
+            project.Property(x => x.Status).HasMaxLength(64).IsRequired();
+            project.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            project.HasIndex(x => new { x.ClientId, x.Name }).IsUnique();
+            project.HasIndex(x => x.WorkspaceId);
+            project.HasIndex(x => x.ClientId);
+        });
+
+        return modelBuilder;
+    }
+}
diff --git a/backend/src/Socialize.Api/Modules/Workspaces/Data/WorkspaceModelConfiguration.cs b/backend/src/Socialize.Api/Modules/Workspaces/Data/WorkspaceModelConfiguration.cs
new file mode 100644
index 0000000..f2582f6
--- /dev/null
+++ b/backend/src/Socialize.Api/Modules/Workspaces/Data/WorkspaceModelConfiguration.cs
@@ -0,0 +1,37 @@
+namespace Socialize.Modules.Workspaces.Data;
+
+public static class WorkspaceModelConfiguration
+{
+    public static ModelBuilder ConfigureWorkspacesModule(this ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Workspace>(workspace =>
+        {
+            workspace.ToTable("Workspaces");
+            workspace.HasKey(x => x.Id);
+            workspace.Property(x => x.Name).HasMaxLength(256).IsRequired();
+            workspace.Property(x => x.Slug).HasMaxLength(128).IsRequired();
+            workspace.Property(x => x.TimeZone).HasMaxLength(128).IsRequired();
+            workspace.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            workspace.HasIndex(x => x.Slug).IsUnique();
+            workspace.HasIndex(x => x.OwnerUserId);
+        });
+
+        modelBuilder.Entity<WorkspaceInvite>(workspaceInvite =>
+        {
+            workspaceInvite.ToTable("WorkspaceInvites");
+            workspaceInvite.HasKey(x => x.Id);
+            workspaceInvite.Property(x => x.Email).HasMaxLength(256).IsRequired();
+            workspaceInvite.Property(x => x.Role).HasMaxLength(64).IsRequired();
+            workspaceInvite.Property(x => x.Status).HasMaxLength(64).IsRequired();
+            workspaceInvite.Property(x => x.CreatedAt)
+                .ValueGeneratedOnAdd()
+                .HasDefaultValueSql("CURRENT_TIMESTAMP");
+            workspaceInvite.HasIndex(x => x.WorkspaceId);
+            workspaceInvite.HasIndex(x => new { x.WorkspaceId, x.Email, x.Status });
+        });
+
+        return modelBuilder;
+    }
+}
diff --git a/docs/TASKS/platform-scaffold/002-contain-backend-feature-mapping.md b/docs/TASKS/platform-scaffold/002-contain-backend-feature-mapping.md
new file mode 100644
index 0000000..2566dad
--- /dev/null
+++ b/docs/TASKS/platform-scaffold/002-contain-backend-feature-mapping.md
@@ -0,0 +1,37 @@
+# Task: Contain backend feature mapping
+
+## Feature
+
+`docs/FEATURES/platform-scaffold.md`
+
+## Goal
+
+Move backend feature-specific persistence mapping out of the shared `AppDbContext` body and into the owning `Modules/<Feature>/Data` folders.
+
+## Context
+
+Architecture docs state that current backend feature code stays under `Modules/<Feature>`. `AppDbContext` remains the shared EF Core composition point, but feature-owned model configuration should live with the feature entities.
+
+## Files Likely To Change
+
+- `backend/src/Socialize.Api/Data/AppDbContext.cs`
+- `backend/src/Socialize.Api/Modules/*/Data/*`
+
+## Constraints
+
+- Do not change API contracts.
+- Do not change table names, indexes, or column constraints.
+- Do not introduce a broader persistence refactor.
+
+## Done When
+
+- [x] Feature entity mappings live under the owning module folders.
+- [x] `AppDbContext` delegates feature configuration to modules.
+- [x] Backend build passes.
+
+## Validation Commands
+
+```bash
+dotnet build backend/Socialize.slnx
+dotnet test backend/Socialize.slnx
+```