XTester v.0.0.89

• Bundled a verified Microsoft WebView2 Fixed Runtime with XTester, so installed builds and Visual Studio launches no longer depend on a separately installed Evergreen runtime.
• Made editor startup fail clearly when the bundled runtime is unavailable, without exposing raw initialization errors.
• Automated publication of the versioned XTester MCP catalog after a successful application release.
• Improved workspace recovery, exchange/model selection, simulation-time presentation, and Research Lab layout.
• Added the reproducible Consensus Momentum benchmark and its regression suite.