feat(site): rework 19 marketing showcases for composition diversity

Measured convergence before: split hero 13/19, top-bar nav 19/19,
one-line notice footer 14/19, body Pretendard 17/21, 10 similarity
pairs above 0.78. Each showcase got a pre-assigned hero family, nav
form, footer form, type pair, background, accent hue, radius, motion
grammar and material from outputs/rework-2026-10-06/plan.md; direction
cards and the chosen reason are recorded in every design.md.

After: 0 similarity warnings, 19 distinct display faces, 7 hero
families, 5 nav forms, 5 footer forms, no scroll reveals, 5 showcases
with SVG filter materials. Example contact values replace bracket
placeholders under the existing fictional-brand notices. Thumbnails,
OG images, card copy and three e2e assertions updated; dead CSS in
dure-enrollment and hannam-jari removed; similarity.mjs learns the new
font families.

apps/site/tools/e2e-report.md

@@ -1,6 +1,6 @@
-# E2E 시나리오 게이트 — 2026-08-26 09:12
+# E2E 시나리오 게이트 — 2026-10-06 07:52
 
-단언 1799 · 통과 1799 · 실패 0 — **GREEN — 전 단언 통과**
+단언 1801 · 통과 1801 · 실패 0 — **GREEN — 전 단언 통과**
 
 | 스위트 | 통과 | 실패 |
 |---|---|---|
@@ -10,7 +10,7 @@
 | M320 매트릭스 | 90 | 0 |
 | M390 매트릭스 | 105 | 0 |
 | M1 터치타깃 | 231 | 0 |
-| M2 대비 | 1087 | 0 |
+| M2 대비 | 1089 | 0 |
 | M768 매트릭스 | 90 | 0 |
 | S7 뒤로 가기 | 6 | 0 |
 | S7 뒤로 가기·모달 | 5 | 0 |