- Add abbrs field to Established verdict taxonomy item
- Add peptide_starter_render_desc() helper — builds safe HTML from
esc_html/esc_attr components; replaces abbr terms with <abbr> tap-targets
- Update front-page.php description output to use render_desc()
- Add assets/js/abbr-tooltip.js — popover open/close, outside-click
dismissal, keyboard accessibility (Enter/Space/Escape), ARIA attrs
- Enqueue abbr-tooltip.js on is_front_page() only
- Add .pr-abbr and .pr-abbr-popover CSS with dashed underline affordance,
fade-in animation, dark-mode-safe surface variables
- Fix PEPTIDE_STARTER_VERSION drift: 2.0.0-alpha.3 → 2.2.1
Routing note: this is a theme change (not PR Core). Term 'RCT' is scoped
to the verdict legend strip only; monograph bodies are unaffected.
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