Commit 1709cb7 deleted the pinned hello-world post and ten tests
silently rotted with it - invisible until now because the suite could
not run in this clone (incomplete deps, then the broken frontmatter).
The slug, banner, og-meta and tag tests now derive slug and title from
the compiled posts at runtime (newest live post, newest draft), matching
the existing latest_post_with_links pattern, so content churn no longer
breaks them.
also added go to install showboat and rodney for the next steps.
microprints work in qwan tracker, but not in firehose. some of the
rendering is in the project, maybe the library should provide sample
webpages.
phx.gen.auth sets current_scope, not current_user. Use !! to
ensure boolean for HEEx template and register_and_log_in_user
in tests for proper auth session.