Native Provider Modes

MediaPlayerNativeProviderMode controls how playback and workflow registrations prefer native, interop, or fallback implementations.

Mode	Meaning
`LegacyHelpers`	Prefer the existing platform helper implementations where they exist.
`InteropOnly`	Force managed interop providers only.
`NativeBindingsOnly`	Reserved for direct native-binding providers; current code paths still fall back because a binding-only provider is not implemented yet.
`AutoPreferInterop`	Prefer managed interop providers first, then fall back.
`AutoPreferBindings`	Prefer native-binding providers when they exist, otherwise use legacy helper or interop fallback.

Where it is used

MediaPlayerNativeRuntime for playback configuration
AddMediaPlayerWorkflows(...) for workflow provider selection
MEDIAPLAYER_NATIVE_PROVIDER_MODE environment override for process-level configuration