[BUG] Cannot compile with ADVANCED_PAUSE_FEATURE without PREVENT_COLD_EXTRUSION

[sjasonsmith]

Bug Description

If ADVANCED_PAUSE_FEATURE is enabled, you cannot compile with PREVENT_COLD_EXTRUSION disabled, due to the following error:

Marlin\src\feature\pause.cpp: In function 'bool ensure_safe_temperature(bool, PauseMode)':
Marlin\src\feature\pause.cpp:132:51: error: 'class Temperature' has no member named 'extrude_min_temp'
     thermalManager.setTargetHotend(thermalManager.extrude_min_temp, active_extruder);

I believe this was introduced by a recent change which added some heating logic when resuming from pause. I wasn't quite sure how to resolve this build failure, without possibly undoing the intentions of the prior change.
828a582

I frequently use PREVENT_COLD_EXTRUSIONS when reproducing bug reports. It allows me to reproduce problems with heaters disabled and no filament loaded.

My Configurations

These are the default configurations, with minimal changes to reproduce the build failure.
Configurations_COLD_EXTRUSION.zip

Steps to Reproduce

1. Build.

Additional Information

N/A

[rlojek]

Confirmed, both bugfix and 2.7.x branches.

[rlojek]

I did some research, in temerature.h field extrude_min_temp is declared conditionally in respect to PREVENT_COLD_EXTRUSION. This was not changed recently, yet how the ensure_safe_temperature handles this has changed:
2.6.1 no use of the field
2.0.7 and 2.0.x use that field:
https://github.com/MarlinFirmware/Marlin/blob/da79674f84ef65cb014288a27d60f8709b1f0936/Marlin/src/feature/pause.cpp#L136
Either set a default value to extrude_min_temp as 0 or change to ensure_save_temperature is needed. I'm waiting for a suggestion how to fix that issue.

[sjasonsmith]

Thanks for the fix, @rlojek!

[github-actions]

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