Fix Broken Links

[stdavis]

Lychee looks promising to me.

• Build a PR action that checks the links of only the updated files
• Triage and fix broken links in the entire project

Here's what the lychee command looks like for checking the entire project:

lychee ./dist --output ./broken-links.md --format markdown --exclude github

[chriswnek]

Reviewed and will remain in the backlog.

[chriswnek]

Will promote this to our next PI Planning meeting for FY26 Q3.