Improve Remote Play HTTP error diagnostics

[leesonthenet]

This improves Remote Play HTTP error reporting so failures identify the request method and endpoint instead of reporting every HTTP failure as a registration error.

The updated error includes:

• HTTP method and request path
• HTTP status
• RP-Application-Reason when provided by the console
• the existing human-readable Remote Play error reason

No Remote Play protocol behavior is changed.

This is useful for diagnosing failures that occur after registration, such as session initialization or session control, which were previously reported as Registration error.

Validation:

• npm run check
• 39 tests passing
• tested against a PS5 running system version 13600007
• registration, session initialization, session control, and Remote Play login completed successfully