Sounds like you're "back in business" for now. As other posts have mentioned, this battery may have a shortened lifespan now, and if you were going IMC or, say, bush flying in the far north, you might not want to risk flying with possible reduced capacity. With your operation, personally, I'd be doing the same thing, run it till it shows signs of failure.
A couple of things, always better to use an external charger to top off a low battery, if you can. And, hand-propping may get the engine started, but, with a completely dead battery, the alternator will never start charging, it needs a beginning field voltage to start. Not so with a generator, they would start charging as soon as they spin.
Final tip, you may do this already, but, leaving the rotating tail beacon on permanently will help "signal" that the master has been left on as you walk away from the plane after shutdown.