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docs/ai/Common/DTS.Common/Interface/CustomerDetails.md

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+---
+source_files:
+  - Common/DTS.Common/Interface/CustomerDetails/ICustomerDetailsView.cs
+  - Common/DTS.Common/Interface/CustomerDetails/ICustomerDetailsViewModel.cs
+generated_at: "2026-04-17T16:37:26.944473+00:00"
+model: "zai-org/GLM-5-FP8"
+schema_version: 1
+sha256: "f962d23186cb094d"
+---
+
+# Documentation: Customer Details Interfaces
+
+## 1. Purpose
+
+This module defines two marker interfaces, `ICustomerDetailsView` and `ICustomerDetailsViewModel`, which establish the contract for the Customer Details feature within an MVVM (Model-View-ViewModel) architecture. These interfaces extend base view and view model abstractions (`IBaseView` and `IBaseViewModel` respectively), enabling type-safe identification and binding of customer-specific UI components without defining additional members. They serve as extension points for the customer details functionality within the broader `DTS.Common.Interface` namespace.
+
+---
+
+## 2. Public Interface
+
+### `ICustomerDetailsView`
+**Namespace:** `DTS.Common.Interface`  
+**Inheritance:** `IBaseView`
+
+```csharp
+public interface ICustomerDetailsView : IBaseView { }
+```
+
+A marker interface representing the View component for customer details. Declares no members; all behavior is inherited from `IBaseView`. Used to identify and type-check customer details view implementations.
+
+---
+
+### `ICustomerDetailsViewModel`
+**Namespace:** `DTS.Common.Interface`  
+**Inheritance:** `IBaseViewModel`
+
+```csharp
+public interface ICustomerDetailsViewModel : IBaseViewModel { }
+```
+
+A marker interface representing the ViewModel component for customer details. Declares no members; all behavior is inherited from `IBaseViewModel`. Used to identify and type-check customer details view model implementations.
+
+---
+
+## 3. Invariants
+
+- **Inheritance Contract:** Both interfaces must always inherit from their respective base types (`IBaseView` and `IBaseViewModel`). Any implementation must satisfy the contracts defined by those base interfaces.
+- **Naming Convention:** The interfaces follow a naming pattern aligned with MVVM conventions (`I[Feature]View` and `I[Feature]ViewModel`).
+- **Empty Interface Constraint:** Neither interface defines additional members; they rely entirely on their base interfaces for functionality. This design implies they serve as type markers rather than behavioral contracts.
+
+---
+
+## 4. Dependencies
+
+### This module depends on:
+- `DTS.Common.Base` — Provides `IBaseView` and `IBaseViewModel` base interfaces from which these interfaces inherit.
+
+### What depends on this module:
+**Cannot be determined from source alone.** Potential consumers would include:
+- Concrete implementations of `ICustomerDetailsView` (e.g., WinForms, WPF, or web-based views)
+- Concrete implementations of `ICustomerDetailsViewModel`
+- Any factory or dependency injection registration code that resolves customer details components
+
+---
+
+## 5. Gotchas
+
+- **Empty Interfaces:** Both `ICustomerDetailsView` and `ICustomerDetailsViewModel` define no members of their own. Developers implementing these interfaces must consult `IBaseView` and `IBaseViewModel` to understand the actual contract requirements. The purpose of these empty interfaces is unclear from source alone—they may serve as marker interfaces for DI registration, navigation systems, or feature identification.
+- **Base Interface Contracts Unknown:** The actual members, properties, and methods that implementations must provide are defined in `IBaseView` and `IBaseViewModel`, which are not included in the provided source. The complete contract cannot be documented without those files.
+- **Feature Scope Ambiguity:** The source does not indicate what specific customer details data or operations this feature encompasses. The scope of "Customer Details" (e.g., read-only display, editing, validation) cannot be determined from these interfaces alone.