Fix text_output using reserved 'output' name causing conflicts
>>> [!note] Migrated issue
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<!-- Migrated from issue #3571343. -->
Reported by: [joevagyok](https://www.drupal.org/user/2876343)
>>>
<h3>Problem</h3>
<p>The text_output node processor was using 'output' as its output port name, which conflicts with the reserved port name system and caused issues with unified port configuration.</p>
<h3>Root Cause</h3>
<p>'output' is a reserved name in the FlowDrop port system, and using it directly caused conflicts with the framework's internal handling.</p>
<h3>Solution</h3>
<p>Renamed the output port from 'output' to 'text' to avoid the reserved name conflict while maintaining clear semantics.</p>
<h3>Impact</h3>
<ul>
<li>text_output node now works correctly with unified ports</li>
<li>No more conflicts with reserved port names</li>
</ul>
issue