feat: add groups resource #371

lib/membership/membership.ex

@@ -7,6 +7,8 @@ defmodule Mv.Membership do
   - `CustomFieldValue` - Dynamic custom field values attached to members
   - `CustomField` - Schema definitions for custom fields
   - `Setting` - Global application settings (singleton)
+  - `Group` - Groups that members can belong to
+  - `MemberGroup` - Join table for many-to-many relationship between Members and Groups
 
   ## Public API
   The domain exposes these main actions:
@@ -14,6 +16,8 @@ defmodule Mv.Membership do
   - Custom field value management: `create_custom_field_value/1`, `list_custom_field_values/0`, etc.
   - Custom field management: `create_custom_field/1`, `list_custom_fields/0`, `list_required_custom_fields/0`, etc.
   - Settings management: `get_settings/0`, `update_settings/2`, `update_member_field_visibility/2`, `update_single_member_field_visibility/3`
+  - Group management: `create_group/1`, `list_groups/0`, `update_group/2`, `destroy_group/1`
+  - Member-group associations: `create_member_group/1`, `list_member_groups/0`, `destroy_member_group/1`
 
   ## Admin Interface
   The domain is configured with AshAdmin for management UI.
@@ -61,6 +65,19 @@ defmodule Mv.Membership do
       define :update_single_member_field_visibility,
         action: :update_single_member_field_visibility
     end
+
+    resource Mv.Membership.Group do
+      define :create_group, action: :create
+      define :list_groups, action: :read
+      define :update_group, action: :update
+      define :destroy_group, action: :destroy
+    end
+
+    resource Mv.Membership.MemberGroup do
+      define :create_member_group, action: :create
+      define :list_member_groups, action: :read
+      define :destroy_member_group, action: :destroy
+    end
   end
 
   # Singleton pattern: Get the single settings record