I have not seen a criminal record with a peace bond revealed, but then, I have little criminal practice experience and probably lots I have not seen.
Nevertheless, I see little cause for concern. You say you have always answered "no" to whether you have a criminal record. A bit of semantics here I suppose, but it seems to me that the usual IRCC type of question is couched in language aimed at a "conviction". The IRCC website on the following page reads, in part:
Under Canada’s immigration law, if you have committed or been convicted of a crime, you may not be allowed into Canada. In other words, you may be “criminally inadmissible.”
https://www.canada.ca/en/immigration-refugees-citizenship/services/immigrate-canada/inadmissibility/overcome-criminal-convictions.html
I suppose a "record" can show anything. It might contain
obiter dicta saying you are not a nice person. That is of no moment. So, even if a peace bond is revealed, it is of no consequence. It's not a
conviction, hence no misrepresentation.
It's interesting that the IRCC asks if you have "committed or been convicted". That suggests they are asking if you have committed a crime for which no conviction was ever entered. It seems they are asking you to be super-honest and confess to crimes never prosecuted, maybe never even detected. I wonder how many come clean and say something like: "Well, yes, I stole an apple from a grocery store when I was a student." I guess that will get the IRCC response: "Well, sorry, you are inadmissible."