Extends the Phase-1 monogram mark system to every long-form content
type (essays, blog posts, poems, fiction, music) and introduces a
coverage audit so gaps are visible.
* build/Marks.hs gains hasMonogram (predicate), monogramSvgFieldFor +
hasMonogramFieldFor (for explicit-path callers like the /build/ and
/stats/ pages). Contexts.hs exports hasMonogramField as a siteCtx
boolean so templates can conditionally render the slot without
emitting an empty <div>.
* essay.html, blog-post.html, reading.html: hoist the frontmatter
block out of <main id="markdownBody"> so the monogram + epistemic
marks render as wrapper chrome rather than indexable prose; left
+ right mark slots are now unconditional (CSS handles the empty
state) so the layout is grid-stable across pieces.
* templates/partials/item-card.html: optional monogram chip on cards
(item-card--has-monogram modifier), gated on $has-monogram$ so
monogram-less pieces stay flush.
* build/Stats.hs grows a "Marks coverage" telemetry section: per-type
pieces / monogram / epistemic-figure counts + a coverage rollup,
rendered between epistemic and output on /build/.
* tools/audit-marks.py: coverage report (ASCII table) walking
content/**/*.md, plus a pre-commit hook at
tools/hooks/pre-commit-marks.sh that runs the same scan against
newly-staged .md files. New `make audit-marks` runs the report
manually; the hook gates commits.
* static/css/marks.css: layout for the new frontmatter slots and the
item-card monogram chip.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>