PR summary

Closes #31054

Text didn't have a get_tightbbox override yet, so this adds that with some handling for no-show cases. The _in_axes_domain check is not exclusive to text and may be useful elsewhere, so was given to Artist more broadly.

The plot in the original issue renders correctly now, and I can confirm it was broken for me before:

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 10, 100)
y = np.sin(x) * 10

fig, ax = plt.subplots()
ax.plot(x, y)
ax.set_yscale('log')
ax.text(5, -5, "I am at y = -5", color='red')

plt.savefig("test_gh31054.png", bbox_inches='tight')

PR checklist

• "closes #0000" is in the body of the PR description to link the related issue
• new and changed code is tested
• [n/a] Plotting related features are demonstrated in an example
• [n/a] New Features and API Changes are noted with a directive and release note
• [n/a] Documentation complies with general and docstring guidelines