블록 템플릿 업데이트: 수정 3개 + 신규 17개 + catalog.yaml 재정비

수정:
- compare-2col-badge, compare-detail-gradient, hero-icon-cards 개선

신규 블록:
- cards: category-strip-table, system-2col-center, hero-icon-cards_1
- emphasis: checklist-dark
- visuals: cycle-orbit
- new/: cards-3col-persona, compare-vs-rows, cycle-3way-intersect 등 8개
- redesign/: card_hero-icon-cards_1
- svg/: arc_left, arrow_conclusion, arrow_down, line_divider
- BEPs: process-product-2col SVG + 테스트

catalog.yaml 전면 재정비 (슬롯 스키마, height_cost, 카테고리 정리)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

templates/blocks/svg/line_divider.svg

@@ -0,0 +1,3 @@
+<svg preserveAspectRatio="none" width="100%" height="100%" overflow="visible" style="display: block;" viewBox="0 0 3553 5" fill="none" xmlns="http://www.w3.org/2000/svg">
+<line id="Line 1" y1="2.5" x2="3553" y2="2.5" stroke="var(--stroke-0, #0F2E25)" stroke-width="5"/>
+</svg>