Comment Edit and delete

[kingRayhan]

The article details page has reuseable comment component

       <CommentSectionProvider>
          <CommentSection resource_type="ARTICLE" resource_id={article.id} />
        </CommentSectionProvider>

We need to add ability to edit/delete self comment

[kingRayhan]

Implemented

• Server: updateMyComment / deleteMyComment in comment.action.ts (owner-only; deleteMyComment removes nested replies and related reactions). pgClient import fixed for getComments.
• UI: CommentItem shows Edit / Delete for the signed-in author; edit uses textarea + Save/Cancel; delete uses confirm dialog (extra warning if there are nested replies).
• Input: comment.input.ts update body max aligned with create (5000 chars).
• Domain: Comment includes optional updated_at for updates.

[kingRayhan]