Added the AskMark public Blazor Web App with global WebAssembly interactivity and MudBlazor layout.

Integrated magic-link cookie authentication for signup, balance, top-up, and support flows.

Added token balance, signup, PayPal top-up, support, partner, white-label, privacy, and terms pages.

Moved the YorkieCarKeys EF model into a server-only shared data project used by both API and web server.

Added brand configuration, PWA files, Docker support, and white-label documentation.