Update version from 9.0.0 to 9.0.40 to align precisely with MAUI 9.0.40 release. Update CHANGELOG, package metadata, and templates. Fix thread safety issue in FontFallbackManager by changing _glyphCache from Dictionary to ConcurrentDictionary to prevent race conditions during concurrent glyph lookups.
Change version from 1.0.0 to 9.0.0 to align with .NET 9 / MAUI 9.0.x versioning convention. Update all package references, templates, and documentation. Change copyright holder from "MarketAlly LLC" to "MarketAlly Pte Ltd" across all files. Update CHANGELOG to document version realignment and mark 1.0.0 as deprecated. Update release notes to reflect 541 passing tests (up from 217) and include native resource leak fixes, SafeHandle wrappers, and performance benchmarks.
Replace 495+ Console.WriteLine debug statements across handlers, dispatching, services, views, and window components with centralized DiagnosticLog service for proper logging infrastructure. Add new DiagnosticLog.cs service with Debug/Error methods to eliminate debug logging pollution in production code.
