planned is pretty obvious, but I’m not so sure about the differences between resolved, fixed and closed.
I might choose planned, wontfix and resolved as tags for bugs myself.
Sorry I never documented this.
resolved is for the “Help” category exclusively right now.
fixed is obvious. closed is a general term that means the bug is no longer valid, which would include the case of wontfix.
For features, planned and done or implemented are the two tags I find useful right now.