Bike won't start! 94 Honda shadow 1100?

I have a 94 shadow 1100. This morning I went out to start it and it just kept cranking over like it was about to start. It was a bit cold out so I figured it would fight me to start. Eventually I ended up draining my battery and said forget it I ll try it later. I hooked it up to a charger and after it was fully charged, I went to start it up. Only this time It didn't do anything. I let it sit for a minute and tried again and I hear a "clunk" sound coming from the bottom of my bike. Almost around my starter. I hear the clunk for like the 4-5 times I press the button then I hear nothing. Again, I let it sit, and the clunk comes back for a few more presses. My kickstand is down, my bike is in neutral and my engine kill switch isn't on. I fear I may have somehow seized my engine or just fried my starter. Anyone know what might be the issue? The bike has been running fine up until now. Hasn't sat for more that a few days since I last rode it.

You drained the battery to it's grave.
A battery charger will not bring a dead battery back to life.
The noise you heard was probably the starter motor attempting to turn the crankshaft.
With no battery amperage, the starter motor and starter clutch gears would lock up without being able to spin the crankshaft.

Attach a car battery to your bike with jumper cables (car not running)
If the bike starts as usual, replace the battery.

More likely the battery is dead beyond repair or an earth/ground connection is corroded.

A big v-twin requires a lot of cold cranking amps to turn and fire.

Engines do not seize from sitting around for a few days, starters do "fry" but they are basically simple electrical motors so that is rare.

One weak point on Hondas has been the reg/rec - that might not be the case on your bike though so check it before going to the expense of replacing.