- Map unpaid|partial → cell-unpaid (or cell-unpaid-current for current
month) and surplus → cell-overridden, matching Python's Jinja logic;
avoids emitting non-existent cell-partial/cell-surplus classes that
caused Pay buttons to escape the table.
- Add text-decoration: none to .pay-btn so anchor-based Pay links don't
show the default underline.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Stand up the Go-native HTML frontend foundation:
- base.tmpl layout + nav/footer partials (three-tier nav, active-link highlighting)
- terminal-green-on-black theme extracted to static/css/app.css (served via embed.FS)
- HTMLHandler with stub pages for all five routes; / redirects to /adults
- NewRenderer parses per-page template sets at startup so parse failures abort boot
- Smoke test: each route returns 200 text/html with exactly one class="active" link
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
