Code Validation Update

1. Update the code validation feature. With Roslyn installed(see guide), MCP clients will receive detailed error messages and making the code generation process more error-proof
2. Minor update to the EditorWindow, making more space for upcoming features
3. Readme update to include Code validation guides
4. Minor bug fixes including installation bugs from previous VSC PR

Author: Scriptwonder

README.md

@@ -73,6 +73,27 @@ Unity MCP connects your tools using two components:
       *   [Cursor](https://www.cursor.com/en/downloads)
       *   [Visual Studio Code Copilot](https://code.visualstudio.com/docs/copilot/overview)
       *   *(Others may work with manual config)*
+ *    <details> <summary><strong>[Optional] Roslyn for Advanced Script Validation</strong></summary>
+
+        For **Strict** validation level that catches undefined namespaces, types, and methods: 
+
+        **Method 1: NuGet for Unity (Recommended)**
+        1. Install [NuGetForUnity](https://github.com/GlitchEnzo/NuGetForUnity)
+        2. Go to `Window > NuGet Package Manager`
+        3. Search for `Microsoft.CodeAnalysis.CSharp` and install the package
+        5. Go to `Player Settings > Scripting Define Symbols`
+        6. Add `USE_ROSLYN`
+        7. Restart Unity
+
+        **Method 2: Manual DLL Installation**
+        1. Download Microsoft.CodeAnalysis.CSharp.dll and dependencies from [NuGet](https://www.nuget.org/packages/Microsoft.CodeAnalysis.CSharp/)
+        2. Place DLLs in `Assets/Plugins/` folder
+        3. Ensure .NET compatibility settings are correct
+        4. Add `USE_ROSLYN` to Scripting Define Symbols
+        5. Restart Unity
+        
+        **Note:** Without Roslyn, script validation falls back to basic structural checks. Roslyn enables full C# compiler diagnostics with precise error reporting.</details>
+
 
 ### Step 1: Install the Unity Package (Bridge)
 
@@ -192,7 +213,7 @@ If Auto-Configure fails or you use a different client:
 
 ### 🔴 High Priority
 - [ ] **Asset Generation Improvements** - Enhanced server request handling and asset pipeline optimization
-- [ ] **Code Generation Enhancements** - Improved generated code quality, validation, and error handling
+- [ ] **Code Generation Enhancements** - Improved generated code quality and error handling
 - [ ] **Robust Error Handling** - Comprehensive error messages, recovery mechanisms, and graceful degradation
 - [ ] **Remote Connection Support** - Enable seamless remote connection between Unity host and MCP server
 - [ ] **Documentation Expansion** - Complete tutorials for custom tool creation and API reference
@@ -210,6 +231,7 @@ If Auto-Configure fails or you use a different client:
   <summary><strong>✅ Completed Features<strong></summary>
 
   - [x] **Shader Generation** - Generate shaders using CGProgram template
+  - [x] **Advanced Script Validation** - Multi-level validation with semantic analysis, namespace/type checking, and Unity best practices (Will need Roslyn Installed, see [Prerequisite](#prerequisites)).
 </details>
 
 ### 🔬 Research & Exploration
@@ -295,4 +317,4 @@ Thanks to the contributors and the Unity team.
 
 ## Star History
 
-[![Star History Chart](https://api.star-history.com/svg?repos=unity-mcp/unity-mcp,justinpbarnett/unity-mcp&type=Date)](https://www.star-history.com/#unity-mcp/unity-mcp&justinpbarnett/unity-mcp&Date)
+[![Star History Chart](https://api.star-history.com/svg?repos=justinpbarnett/unity-mcp&type=Date)](https://www.star-history.com/#justinpbarnett/unity-mcp&Date)