v1.1.0 - bearer option, looping menu, full token print

Adds three things from feedback:

• Looping menu - the app stays open between calls (choose 0 to exit).
• Classic MSI (option 1) - a basic bearer token from the local IMDS endpoint (the stealable "before").
• Full token printing - the complete access token is printed so you can copy it and replay it from another VM (bearer succeeds; bound mtls_pop is rejected).

Self-contained single-file win-x64 build (no .NET install needed). Pre-configured with non-secret IDs (UAMI 71d22d68-..., region westcentralus, vault msidlabs, secret mytbsecret).

.\TokenBindingShowcase.exe        # interactive menu (loops)
.\TokenBindingShowcase.exe 5      # all bound paths