Add project guidelines generated by and for Junie using Gemini 3.

Signed-off-by: Manuel Ullmann <[email protected]>

Author: labre-rdc

Source/.junie/guidelines.md

@@ -0,0 +1,58 @@
+# Coding Conventions
+
+Junie Pro generated these guidelines using the Gemini 3 model.
+
+## General
+*   **Language**: C# (Latest version features used, e.g., file-scoped namespaces, target-typed new).
+*   **Framework**: .NET 10.0 (Windows).
+*   **Architecture**: MVVM (Model-View-ViewModel).
+*   **UI Framework**: WPF (using MahApps.Metro and Dragablz).
+
+## Naming Conventions
+*   **Classes, Methods, Properties, Enums**: PascalCase.
+*   **Private Fields**: `_camelCase` (underscore prefix).
+    *   Exception: `private static readonly ILog Log` (PascalCase).
+*   **Event Handlers**: `Object_EventName` (e.g., `SettingsManager_PropertyChanged`).
+*   **Interfaces**: `IPascalCase` (prefix with I).
+
+## Formatting
+*   **Indentation**: 4 spaces.
+*   **Braces**: Allman style (opening brace on a new line).
+*   **Namespaces**: File-scoped namespaces (`namespace MyNamespace;`).
+*   **Imports**: `using` directives sorted alphabetically, `System` namespaces mixed in.
+*   **Grouping**: `#region` used to group related members (e.g., Variables, Events, Properties).
+
+## Specific Practices
+*   **Logging**: Use `log4net` via `LogManager.GetLogger(typeof(ClassName))`.
+*   **Properties**: Implement `INotifyPropertyChanged` (usually via `ViewModelBase`). Use expression-bodied members for getters where concise.
+*   **Null Checks**: Use pattern matching or standard checks.
+*   **Localization**: Use static `Strings` class (e.g., `localization:Strings.MyString`).
+*   **Documentation**: XML documentation comments (`///`) for all public members.
+
+# Code Organization and Package Structure
+
+## Projects
+The solution is divided into multiple projects to separate concerns:
+
+*   **NETworkManager**: The main WPF application project. Contains the entry point (`App.xaml`), main window, and feature-specific Views and ViewModels.
+*   **NETworkManager.Controls**: Custom WPF UI controls used throughout the application.
+*   **NETworkManager.Converters**: WPF Value Converters for data binding.
+*   **NETworkManager.Models**: Core business logic, data entities, and service wrappers (e.g., Network, Ping, Traceroute logic).
+*   **NETworkManager.Utilities**: General purpose utility classes and helpers.
+*   **NETworkManager.Utilities.WPF**: WPF-specific utility classes.
+*   **NETworkManager.Settings**: Manages application settings and configuration persistence.
+*   **NETworkManager.Profiles**: Logic for handling network profiles.
+*   **NETworkManager.Localization**: Contains localization resources (`Strings.resx`).
+*   **NETworkManager.Validators**: Input validation logic.
+*   **NETworkManager.Documentation**: Application documentation resources.
+*   **NETworkManager.Update**: Logic for checking and applying application updates.
+*   **NETworkManager.Setup**: Related to the installer setup.
+
+## Directory Structure
+*   `/NETworkManager`
+    *   `/Views`: XAML Views (UserControls, Windows).
+    *   `/ViewModels`: ViewModels corresponding to Views.
+    *   `/Resources`: App-specific resources.
+*   `/NETworkManager.Models`
+    *   Organized by feature (e.g., `/Network`, `/Ping`, `/Lookup`).
+*   `/3rdparty`: Third-party libraries and dependencies. Junie must not modify these libraries and dependencies.

Source/NETworkManager.sln

@@ -34,6 +34,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 	ProjectSection(SolutionItems) = preProject
 		.editorconfig = .editorconfig
 		GlobalAssemblyInfo.cs = GlobalAssemblyInfo.cs
+		.junie\guidelines.md = .junie\guidelines.md
 	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "3rdparty", "3rdparty", "{B44F92AE-A764-4EA0-B663-FA2B82DA1E80}"