feat: Simulate Update module - test patch packages end-to-end

[JusterZhu]

Summary

Add a new "Simulate Update" module to GeneralUpdate.Tools that allows users to test patch packages end-to-end.

Requirements

1. User provides: old version directory, patch .zip, simulation output directory
2. Tools generates client.cs and upgrade.cs (single-file, dotnet run) in output dir
3. Tools runs embedded ASP.NET local server to serve the patch
4. Client detects update, downloads patch, launches upgrade process
5. Upgrade applies the patch via GeneralUpdate pipeline
6. Tools collects logs and generates simulation_report.md

Sub-Issues

• UI: 使用wpf-ui #2: Add SimulateConfigModel, SimulateView, SimulateViewModel (UI)
• fix compress error #3: Implement LocalUpdateServer (embedded ASP.NET minimal API)
• 优化代码 #4: Implement ClientGeneratorService + SimulationService
• add extension func #5: MD report generation + integration test
• [WIP] Add extension function optimization #6: Add navigation entry + environment check

Reference: GeneralUpdate-Samples (ClientSample, UpgradeSample, ServerSample)