This should give you everything you need to know: Interactive 360 Panoramas - How To Post on GADC
Obviously, your drone will create the stitched image for you .. so it’s just the Kuula account needed and copying the “iframe” sharing link to paste here.
Using the individual images the drone takes it’s possible to create a hi-res version, and @clinkadink’s tutorial covers that. How to create high resolution 360 Panoramics