Captures the design discussion: a path-keyed sidecar is NOT a safe source of
truth (a git-undetected rename loses the page), so the id must travel WITH the
file — either as a slugId suffix in the filename (B) or a minimal YAML frontmatter
`id:` (C); both robust, B/C is the open UX decision (author leans C for clean
names). The sidecar may remain an optional path->id cache. Adds phase 6 — link
sync between notes: Docmost links are by pageId (survive rename), vault markdown
links are by path (rewrite on rename, Obsidian-style); independent of B/C and the
format phases.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
035df2ffe5