Update hpc upload form to handle @hog.methods

[hholb]

Resolves: #477

This PR updates the hog script parsing logic to find @hog.methods inside python classes.

Screen.Recording.2026-01-07.at.3.57.23.PM.mov

For reference here is the hog script I was testing with:

import groundhog_hpc as hog

@hog.function()
def bar():
    pass

class Foo:
    @hog.method()
    def bar():
        pass

    @hog.method()
    def baz():
        pass


@hog.function()
def baz():
    pass