[BUG] Broken Links & HTML Artifacts in Message to Client

[matKlju]

Bug description:
In “Sõnum kliendile / Message to client”, hyperlink handling is inconsistent and breaks in multiple scenarios:

1. When text (e.g. www.google.com) is selected and turned into a hyperlink via the Link button, the node preview shows a clickable link, but during service testing, the response renders raw escaped HTML (<a ...>...</a>) instead of a usable link.

2. Escaped HTML entities may appear when text is copied and pasted into the Message to Client element. In that case, canvas/node preview will show the text inside a white rectangle and upon running the service it might crash or displaye the full output with previouslt defined html artifacts.

white rectangle:

Service response example:
<a href="www.google.com" rel="noopener noreferrer" target="_blank">www.google.com

Expected behavior:

• Hyperlinks created via the Link button must render in the final service response as proper clickable links (styled, not escaped HTML).
• Pasted content must not display broken or escaped HTML entities in preview or final output.
• Hyperlinks added via linking functionality must:
  • display correctly in preview and final output
  • be clickable
  • open in a new tab/window
• Rendering must be consistent between:
  • editor (modal)
  • canvas/node preview
  • final service response

Additional information:

• Escaped HTML entities may appear when text is copied and pasted into the Message to Client element. In that case, canvas/node preview will show the text inside a white rectangle and upon running the service it might crash or displaye the full output with previouslt defined html artifacts.

Screenshots: