fix(web): bump ledger .tag color to vermilion-glow for AA contrast

The ledger row tags (AMD, PFN, SFT, EDINET, BO-5, KG-2, MIT) rendered
--vermilion (#E8503A) at 9 px on the dark ink-card row, measuring
4.32-4.5:1 against axe — just under the 4.5:1 WCAG AA threshold for
small text. Switched the tag color and border to --vermilion-glow
(#FF6B52), which lifts the ratio to ~5.7:1 and unblocks CI's
a11y.spec.ts run.

Author: javierdejesusda

web/app/globals.css

@@ -2071,8 +2071,8 @@ h1.hero-title .accent::after {
 .repro-ledger .row .v em { color: var(--vermilion); font-style: normal; font-weight: 500; }
 .repro-ledger .row .tag {
   font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase;
-  color: var(--vermilion);
-  border: 1px solid var(--vermilion);
+  color: var(--vermilion-glow);
+  border: 1px solid var(--vermilion-glow);
   padding: 2px 6px;
 }
 .repro-ledger .row.total { background: rgba(232, 80, 58, 0.06); }