This is the first note in the vault – a short, atomic, interlinked reference note, distinct from the blog’s long-form posts. Proves the vault content section (plan 0004 / D4) renders correctly end to end; D8 seeds the real content and cross-links once wikilinks (D5) and backlinks (D6) land.
Cross-links to Wikilinks (a real note) and to Nonexistent Note (not a real note, proving the unresolvable-target fallback).