feat: animate reasoning panel

[fmueller]

Summary

• show reasoning in dedicated panel that only displays the last full paragraph while response is streaming
• animate reasoning header with looping dots when generation is in progress
• dim reasoning text colors for a subtler appearance

Testing

• gradle check

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https://chatgpt.com/codex/tasks/task_e_6895be973624832daea44f7f9feb12a8

[github-actions]

Qodana Community for JVM

4 new problems were found

Inspection name	Severity	Problems
Constant conditions	🔶 Warning	2
Assigned value is never read	🔶 Warning	1
Unnecessary local variable	◽️ Notice	1

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[github-actions]

Qodana Community for JVM

3 new problems were found

Inspection name	Severity	Problems
Constant conditions	🔶 Warning	2
Assigned value is never read	🔶 Warning	1

💡 Qodana analysis was run in the pull request mode: only the changed files were checked

View the detailed Qodana report

To be able to view the detailed Qodana report, you can either:

• Register at Qodana Cloud and configure the action
• Use GitHub Code Scanning with Qodana
• Host Qodana report at GitHub Pages
• Inspect and use qodana.sarif.json (see the Qodana SARIF format for details)

To get *.log files or any other Qodana artifacts, run the action with upload-result option set to true,
so that the action will upload the files as the job artifacts:

      - name: 'Qodana Scan'
        uses: JetBrains/qodana-action@v2025.2.1
        with:
          upload-result: true

Contact Qodana team

Contact us at qodana-support@jetbrains.com

• Or via our issue tracker: https://jb.gg/qodana-issue
• Or share your feedback: https://jb.gg/qodana-discussions