ActionPluginBase missing proper getReadableOutput() return
>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3513788. --> Reported by: [michaellander](https://www.drupal.org/user/636494) Related to !523 >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>The <code>Drupal\ai\Plugin\AiFunctionCall\ActionPluginBase::getReadableOutput</code> method currently returns a blank string, this needs to properly return status/output.</p> <div class="codeblock"> <pre><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br>&nbsp;</span><span style="color: #FF8000">/**<br>&nbsp;&nbsp; * {@inheritdoc}<br>&nbsp;&nbsp; */<br>&nbsp; </span><span style="color: #007700">public function </span><span style="color: #0000BB">getReadableOutput</span><span style="color: #007700">(): </span><span style="color: #0000BB">string </span><span style="color: #007700">{<br>&nbsp;&nbsp;&nbsp; return </span><span style="color: #DD0000">''</span><span style="color: #007700">;<br>&nbsp; }<br></span><span style="color: #0000BB">?&gt;</span></span></pre></div>
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