Exhale sound is not laughter in salah

What counts as laughing out loud in salah? Is it only the haha sound and giggling or is it any sound of amusement - a funny thought came to mind whilst I was reciting Fatiha and I wanted to make a sound of amusement (which to me is an exhale with force and sound) but I stopped myself from making that particular sound but I couldn’t stop myself from exhaling - this sounding like a ghain like gha (which was the next part of the Fatiha I was supposed to recite). To someone outside they wouldn’t have known I laughed or made a sound of amusement - to them it would sound like I stumbled on my recitation but I know that “stumble” was me trying not to make a sound of amusement - in this sense is that sound considered a laugh even though it doesn’t sound like a typical or my usual laugh? Was my prayer invalid? Do I need to redo wudu and my prayer? I read on and didn’t renew my wudu because I thought it didn’t sound like a laugh and to others It didn’t sound like a laugh. But please let me know per hanafi fiqh if I need to redo that prayer, also if you can give the reasons for your answer. Thank you.