fix: redundant row updates with no Task id in text_labels table

[melvinebenezer]

For every report from the frontend , a new entry was created in text_label table.

Solution

• Update existing record based on message_id iff there is no Task ID associated to it
• create new row if none exists
• Outer Commit function in API handler

Dependency

• Blocked by message_id not correct in /api/set_label #794

Test Evidence

• SInce message_id not correct in /api/set_label #794 (comment) is still open. Used Postman to recreate the scenario.

First Update

Second Update

[andreaskoepf]

The overall logic looks right, left some comments.

[andreaskoepf]

suggested some changes.

[andreaskoepf]

fine :-)