Description
Preview rendered YAML frontmatter as junk (--- rules, mashed key/value paragraph, stray bullets). Now: frontmatter is peeled off before glamour; doc name (frontmatter title, else filename) renders as a full-width bold bar in the heading color; properties render tight (no blank lines, no rules) with dim aligned keys and italic values.
Acceptance Criteria
- #1 Frontmatter --- fences never render as horizontal rules
- #2 Doc name shows as a full-width color-block H1 bar
- #3 Frontmatter title overrides the filename and is not repeated as a property
- #4 Properties are consecutive lines, aligned, dim keys, italic values