fix(tradein/v2): пометка «В ОФФЕР» + сузить реестровую карточку (#1991)

После #2266/#2312 иерархия 3 цен уже разведена по размеру/весу (Avito IMV
вынесен из hero целиком в отдельную аналитику). Оставшийся геп из #1991:

- ДКП·Росреестр карточка занимала равную с двумя ценовыми ширину сетки
  (1fr/1fr/1fr) несмотря на приглушённый стиль — теперь 1.3fr/1.3fr/0.85fr,
  две главные цены доминируют, реестровая карточка визуально вторична.
- Добавлена явная пометка «В ОФФЕР» на карточке ожидаемой цены сделки
  (скрыта в H1 empty-state, где акцентная рамка переезжает на asking-карточку).

Refs #1991

tradein-mvp/frontend/src/components/trade-in/v2/ResultPanel.tsx

@@ -15,6 +15,7 @@ import type { ResultPanelData } from "./mappers";
 const {
   accent,
   accentDeep,
+  onAccent,
   ink,
   body,
   body2,
@@ -172,7 +173,14 @@ export default function ResultPanel({
       <div
         style={{
           display: "grid",
-          gridTemplateColumns: "1fr 1fr 1fr",
+          // #1991 — the registry (ДКП) tile is an external anchor, not a peer
+          // of the two prices that actually matter (asking / expected). Equal
+          // 1fr columns still read as "three equivalent options" even with
+          // the demoted colors/type-scale below, so the two primary cards get
+          // ~50% more width and the registry tile narrows into a visibly
+          // secondary, reference-only column (closer to a convergence strip
+          // than a full-size card, per audit acceptance criteria).
+          gridTemplateColumns: "1.3fr 1.3fr 0.85fr",
           gap: 14,
           flex: "0 0 auto",
         }}
@@ -186,6 +194,8 @@ export default function ResultPanel({
           // value so the user can't confuse it with the registry figure; the
           // registry card is demoted to a softer, smaller, muted "СПРАВОЧНО"
           // tile. Value scale reads expected(40) ≫ asking(30) > ДКП(28).
+          // #1991 — column width above is the third, independent axis: asking
+          // and expected visually dominate the row, ДКП is narrow/secondary.
           //
           // H1 — when the expected card has no prediction (emptyNote), it drops
           // to an honest empty-state and the accent frame moves onto the asking
@@ -232,19 +242,48 @@ export default function ResultPanel({
             />
             <div
               style={{
-                fontSize: 9.5,
+                display: "flex",
-                letterSpacing: 1.5,
+                alignItems: "flex-start",
-                // Contrast follow-up (audit #2266): accent (#2e8bff) on the
+                justifyContent: "space-between",
-                // headline card's pale infoSoftBg tint measured ≈2.87:1 — below
+                gap: 8,
-                // even the AA "large text" floor (3:1). accentDeep is the same
-                // brand hue, darkened (existing token, not a one-off hex) — it
-                // clears ~4.2:1 here, so the label reads reliably too.
-                color: isHeadline ? accentDeep : isRegistry ? muted2 : body2,
-                fontWeight: isHeadline ? 600 : undefined,
-                lineHeight: 1.6,
               }}
             >
-              {lines(card.title)}
+              <div
+                style={{
+                  fontSize: 9.5,
+                  letterSpacing: 1.5,
+                  // Contrast follow-up (audit #2266): accent (#2e8bff) on the
+                  // headline card's pale infoSoftBg tint measured ≈2.87:1 — below
+                  // even the AA "large text" floor (3:1). accentDeep is the same
+                  // brand hue, darkened (existing token, not a one-off hex) — it
+                  // clears ~4.2:1 here, so the label reads reliably too.
+                  color: isHeadline ? accentDeep : isRegistry ? muted2 : body2,
+                  fontWeight: isHeadline ? 600 : undefined,
+                  lineHeight: 1.6,
+                }}
+              >
+                {lines(card.title)}
+              </div>
+              {/* #1991 — explicit "this is the figure that goes into the offer"
+                  mark on the headline card, so the two dominant prices are not
+                  just visually bigger but literally labelled which one to quote. */}
+              {isHeadline && !isEmptyCard && (
+                <span
+                  style={{
+                    flex: "0 0 auto",
+                    fontSize: 8,
+                    fontWeight: 700,
+                    letterSpacing: 1,
+                    color: onAccent,
+                    background: accentDeep,
+                    borderRadius: 3,
+                    padding: "3px 6px",
+                    whiteSpace: "nowrap",
+                  }}
+                >
+                  В ОФФЕР
+                </span>
+              )}
             </div>
             {isRegistry && (
               <div