Reheat nozzle when resuming after an idle_timeout

RESUME.cfg

[idle_timeout]
timeout: 600
gcode:
    {% if printer.pause_resume.is_paused %}
        # Store previous temperature
        SET_GCODE_VARIABLE MACRO=RESUME VARIABLE=prev_temp VALUE={printer.extruder.target}
        M117 Idle, turning off hotend
        SET_HEATER_TEMPERATURE HEATER=extruder TARGET=0
    {% else %}
        TURN_OFF_HEATERS
        M84
    {% endif %}

[gcode_macro PAUSE]
description: Pause the actual running print
rename_existing: PAUSE_BASE
gcode:
    PAUSE_BASE
    _TOOLHEAD_PARK_PAUSE_CANCEL

[gcode_macro RESUME]
description: Resume the actual running print
rename_existing: RESUME_BASE
variable_prev_temp: 0
gcode:
    ##### read extrude from _TOOLHEAD_PARK_PAUSE_CANCEL macro #####
    {% set extrude = printer['gcode_macro _TOOLHEAD_PARK_PAUSE_CANCEL'].extrude %}
    #### get VELOCITY parameter if specified ####
    {% if 'VELOCITY' in params|upper %}
        {% set get_params = ('VELOCITY=' + params.VELOCITY) %}
    {%else %}
        {% set get_params = "" %}
    {% endif %}
    ##### end of definitions #####
    {% if printer.extruder.can_extrude|lower == 'true' %}
        M83
        G1 E{extrude} F2100
        {% if printer.gcode_move.absolute_extrude |lower == 'true' %} M82 {% endif %}
    {% else %}
        # Check that a previous temp was stored:
        {% if prev_temp > 0 %}
            # Restore previous temp
            {action_respond_info("Heating extruder..")}
            M109 S{prev_temp}
        {% else %}
            # No previous temp was stored
            {action_respond_info("Extruder not hot enough")}
        {% endif %}
    {% endif %}
    # Reset the stored previous temp
    {% set prev_temp = 0 %}
    
    RESUME_BASE {get_params}