Add `--save-position-on-error` feature

Expected behavior of the wanted feature

As youtube and other providers are cracking down on direct streaming outside of their platforms, various intermittent failures are increasing.

It would be really cool if user could define save-position-on-error=yes which would not save video playback position on normal quit, but only on explicit save-quit (which is handled by different option/command Shift+Q by default I think) AND also should streaming error happen if this setting is true.

This would allow one restart the videos easily on failure, without the need to rewind forward to time of failure. Normal quit is user wanted quit, invoked by command, so then save-on-quit feature is not needed. Explicit save-and-quit feature is as well always honored, when bound.

Alternative behavior of the wanted feature

No response

Log File

No response

Sample Files

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Start by tracing the existing save-on-quit option and the Shift+Q save-and-quit command, then locate where streaming errors are handled. Define the behavior for normal quit, explicit save-and-quit, and streaming failure, and verify each path with the relevant playback or command tests.