Proposal: Adopt "Conventional Comments" for PR Reviews

[jekabs-karklins]

As our team and codebase continue to grow, having a clear, consistent way to label pull-request feedback will help everyone understand intent, urgency, and scope at a glance. I’d like to propose that we standardize on the Conventional Comments spec for our GitHub PR reviews.

• praise
• nitpick
• suggestion
• issue
• question
• thought