feat(ptica): live 3D massing in Инсоляция card + honest Recommended Product verdict

- MassingScene: preview prop — viewport-only, hands-off autorotate (OrbitControls
  input disabled, autoRotate on), canvas pointer-events:none; teardown preserved.
- InsolationCard: replaces the abstract SVG cube with a live autorotating massing
  built from real parcel area + НСПД max_far (farIsReal). «Открыть 3D» still opens
  the full interactive drawer.
- RecommendedProductCard: degenerate mix no longer shows «сигнал недоступен» —
  it shows the real advisory verdict «Избегать» + reason (затоварка · индекс
  дефицита из mix.deficit_index) + product_tz.gate_caveat. Meaningful mixes still
  render quartirography bars. «Подробнее» → product drawer (full reasons).
- drop dead iso-cube CSS (pticaIsoSpin/.isoBoxPreview/.isoPreview*); add
  .massingPreviewViewport + verdict styles (tokens, dark-scoped).
- forecast type: product_tz.gate_caveat.

Clickability sweep: no dead controls found; cockpit already cleanly wired.

frontend/src/app/site-finder/analysis/[cad]/ptica/ptica.module.css

@@ -1322,6 +1322,40 @@
   line-height: 1.5;
   color: var(--text-soft);
 }
+
+/* Recommended Product — honest advisory verdict (degenerate-mix case: every
+   формат «избегать», deficit_index −1.0 → затоварка рынка). Tokens resolve
+   under .pticaRoot[data-theme="dark"]. */
+.verdictPanel {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  margin-top: 4px;
+}
+.signalBadge {
+  display: inline-flex;
+  align-self: flex-start;
+  padding: 2px 9px;
+  border-radius: 999px;
+  font-size: 9px;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+}
+.signalBadgeBad {
+  border: var(--line) solid var(--accent-red);
+  background: rgba(210, 101, 91, 0.08);
+  color: var(--accent-red);
+}
+.verdictReason {
+  font-size: 11px;
+  line-height: 1.4;
+  color: var(--text);
+}
+.verdictCaveat {
+  font-size: 10px;
+  line-height: 1.5;
+  color: var(--text-soft);
+}
 .emptyPanel {
   display: grid;
   place-items: center;
@@ -1898,6 +1932,23 @@
 .massingViewport canvas {
   display: block;
 }
+/* Compact always-on preview canvas in the «Инсоляционная матрица» lower-grid
+   card — autorotating mini massing, hands-off (canvas pointer-events:none so it
+   never steals page scroll/clicks). Tokens resolve under .pticaRoot[data-theme="dark"]. */
+.massingPreviewViewport {
+  position: relative;
+  width: 100%;
+  height: 150px;
+  margin: 2px 0 10px;
+  border: var(--line) solid var(--border);
+  border-radius: var(--radius-md);
+  background: var(--surface-inset);
+  overflow: hidden;
+}
+.massingPreviewViewport canvas {
+  display: block;
+  pointer-events: none;
+}
 .massingSkeleton,
 .massingFallback {
   position: absolute;
@@ -2511,58 +2562,9 @@
   margin-bottom: 1px;
 }
 
-/* Инсоляционная матрица — faint preview massing + ПРЕВЬЮ placeholder */
-/* Ambient «turntable» rotation of the massing-preview cube — gives a sense of
-   the 3D module without opening the drawer. A constant slight rotateX keeps a
-   sliver of depth visible as it passes edge-on. */
-@keyframes pticaIsoSpin {
-  from {
-    transform: rotateX(14deg) rotateY(0deg);
-  }
-  to {
-    transform: rotateX(14deg) rotateY(360deg);
-  }
-}
-.isoBoxPreview {
-  height: 74px;
-  display: grid;
-  place-items: center;
-  margin: 2px 0 10px;
-  opacity: 0.55;
-  perspective: 540px;
-}
-.isoBoxPreview svg {
-  width: 100%;
-  height: 100%;
-  transform-style: preserve-3d;
-  transform-origin: 50% 50%;
-  will-change: transform;
-  animation: pticaIsoSpin 8s linear infinite;
-}
-@media (prefers-reduced-motion: reduce) {
-  .isoBoxPreview svg {
-    animation: none;
-  }
-}
-.isoPreviewLeft {
-  fill: rgba(150, 192, 214, 0.1);
-  stroke: var(--border-strong);
-  stroke-width: 1;
-}
-.isoPreviewTop {
-  fill: rgba(150, 192, 214, 0.06);
-  stroke: var(--border-strong);
-  stroke-width: 1;
-}
-.isoPreviewRight {
-  fill: rgba(150, 192, 214, 0.14);
-  stroke: var(--border-strong);
-  stroke-width: 1;
-}
-.isoPreviewEdge {
-  stroke: var(--border);
-  stroke-width: 0.6;
-}
+/* Инсоляционная матрица — live preview massing (.massingPreviewViewport above)
+   + ПРЕВЬЮ placeholder. The former faint SVG iso-cube (.isoBoxPreview /
+   @keyframes pticaIsoSpin) was replaced by the real autorotating 3D model. */
 .placeholder {
   display: flex;
   flex-direction: column;

frontend/src/components/site-finder/ptica/cockpit/InsolationCard.tsx

@@ -1,19 +1,29 @@
 "use client";
 
 /**
- * InsolationCard — lower-grid «Инсоляционная матрица» preview card. Ports the
- * prototype's faint isometric massing visual + «ПРЕВЬЮ» state; «Открыть 3D»
- * opens the insolation / future3d drawer (the 3D massing + shadow module).
+ * InsolationCard — lower-grid «Инсоляционная матрица» preview card. Renders a
+ * LIVE compact autorotating 3D massing model (a hands-off mini version of the
+ * «Открыть 3D» drawer) instead of the old abstract SVG cube, fed by the REAL
+ * parcel area (geometry) + НСПД КСИТ (max_far). «Открыть 3D» opens the
+ * insolation drawer (3D massing + shadow module).
  */
 
 import styles from "@/app/site-finder/analysis/[cad]/ptica/ptica.module.css";
+import type { ParcelAnalysis } from "@/types/site-finder";
+import { parcelAreaM2 } from "@/components/site-finder/ptica/ptica-adapt";
+import { MassingViewer } from "@/components/site-finder/ptica/massing/MassingViewer";
 import type { DrawerKey } from "@/components/site-finder/ptica/drawers/drawer-keys";
 
 interface Props {
+  analysis: ParcelAnalysis;
   onOpenDrawer: (key: DrawerKey) => void;
 }
 
-export function InsolationCard({ onOpenDrawer }: Props) {
+export function InsolationCard({ analysis, onOpenDrawer }: Props) {
+  const areaM2 = parcelAreaM2(analysis) ?? undefined;
+  const maxFar = analysis.nspd_zoning?.max_far ?? undefined;
+  const farIsReal = maxFar != null;
+
   return (
     <div className={styles.card}>
       <div className={styles.cardHead}>
@@ -21,23 +31,12 @@ export function InsolationCard({ onOpenDrawer }: Props) {
         <span className={styles.openTag}>превью</span>
       </div>
 
-      <div className={styles.isoBoxPreview}>
-        <svg viewBox="0 0 200 74" fill="none" aria-hidden="true">
-          <path
-            d="M60 50 L100 30 L100 8 L60 28 Z"
-            className={styles.isoPreviewLeft}
+      <MassingViewer
+        preview
+        areaM2={areaM2}
+        maxFar={maxFar}
+        farIsReal={farIsReal}
       />
-          <path
-            d="M100 30 L140 50 L140 28 L100 8 Z"
-            className={styles.isoPreviewTop}
-          />
-          <path
-            d="M60 50 L100 70 L140 50 L100 30 Z"
-            className={styles.isoPreviewRight}
-          />
-          <path d="M100 30 L100 70" className={styles.isoPreviewEdge} />
-        </svg>
-      </div>
 
       <div className={styles.placeholder}>
         <div className={styles.placeholderSoon}>ПРЕВЬЮ</div>

frontend/src/components/site-finder/ptica/cockpit/PticaLowerGrid.tsx

@@ -38,7 +38,7 @@ export function PticaLowerGrid({
         forecastReport={forecastReport}
         onOpenDrawer={onOpenDrawer}
       />
-      <InsolationCard onOpenDrawer={onOpenDrawer} />
+      <InsolationCard analysis={analysis} onOpenDrawer={onOpenDrawer} />
     </section>
   );
 }

frontend/src/components/site-finder/ptica/cockpit/RecommendedProductCard.tsx

@@ -20,6 +20,7 @@ import type {
 import {
   DEFICIT_BALANCE_EPS,
   deficitTone,
+  deficitWord,
   fmtNum,
 } from "@/components/site-finder/ptica/scenarios/scenario-helpers";
 import type { DrawerKey } from "@/components/site-finder/ptica/drawers/drawer-keys";
@@ -107,6 +108,35 @@ function capitalize(text: string): string {
   return text.charAt(0).toUpperCase() + text.slice(1);
 }
 
+interface ClassVerdict {
+  /** REAL deficit_index for the class (median of its mix rows), or null. */
+  deficitIndex: number | null;
+  /** REAL per-format signal when uniform across the class (e.g. «избегать»). */
+  signal: string | null;
+}
+
+/**
+ * Honest per-class verdict from the REAL mix: the class deficit_index (its mix
+ * rows share one value in the degenerate ±1.0 case) + the per-format `signal`
+ * when every format agrees. No fabrication — null when the class is absent.
+ */
+function classVerdict(
+  tz: ReportProductTz,
+  selectedClass: string | null,
+): ClassVerdict {
+  const rows =
+    selectedClass != null
+      ? tz.mix.filter((m) => m.obj_class === selectedClass)
+      : tz.mix;
+  const di = rows.find((m) => m.deficit_index != null)?.deficit_index ?? null;
+  const signals = rows.map((m) => m.signal).filter((s): s is string => !!s);
+  const uniform =
+    signals.length > 0 && signals.every((s) => s === signals[0])
+      ? signals[0]
+      : null;
+  return { deficitIndex: di, signal: uniform };
+}
+
 export function RecommendedProductCard({
   forecastReport,
   onOpenDrawer,
@@ -141,6 +171,16 @@ export function RecommendedProductCard({
 
   const bars = degenerateSignal ? [] : allBars.slice(0, MAX_BARS);
 
+  // Honest verdict for the degenerate case (no informative bars): the forecast
+  // IS available — it says AVOID. Built from the active class's REAL signal /
+  // deficit_index + the gate caveat. NO fabricated доля%/bars.
+  const verdict = tz ? classVerdict(tz, activeClass) : null;
+  const avoid =
+    verdict != null &&
+    ((verdict.signal === "избегать") ||
+      (verdict.deficitIndex != null && verdict.deficitIndex < 0));
+  const gateCaveat = tz?.gate_caveat ?? null;
+
   return (
     <div id="ptica-product" className={styles.card}>
       <div className={styles.cardHead}>
@@ -201,9 +241,22 @@ export function RecommendedProductCard({
             </p>
           )}
         </>
-      ) : degenerateSignal ? (
-        <div className={styles.emptyState}>
-          Сигнал по форматам в этом прогнозе недоступен
+      ) : hasProduct && degenerateSignal ? (
+        <div className={styles.verdictPanel}>
+          <span
+            className={`${styles.signalBadge} ${
+              avoid ? styles.signalBadgeBad : ""
+            }`}
+          >
+            {avoid ? "Избегать" : (verdict?.signal ?? "Нет сигнала")}
+          </span>
+          {verdict?.deficitIndex != null && (
+            <p className={styles.verdictReason}>
+              {capitalize(deficitWord(verdict.deficitIndex))} рынка · индекс
+              дефицита {fmtNum(verdict.deficitIndex, 2)}
+            </p>
+          )}
+          {gateCaveat && <p className={styles.verdictCaveat}>{gateCaveat}</p>}
         </div>
       ) : (
         <div className={styles.emptyState}>после прогноза (Сценарии)</div>

frontend/src/components/site-finder/ptica/massing/MassingScene.tsx

@@ -30,6 +30,12 @@ export interface MassingSceneProps {
   maxFar?: number;
   /** True when `maxFar` is the real НСПД ПЗЗ value (drives the caption). */
   farIsReal?: boolean;
+  /**
+   * Compact preview mode — renders ONLY the autorotating viewport (no sliders /
+   * metrics), with all user interaction disabled (hands-off mini massing for the
+   * Инсоляционная матрица lower-grid card).
+   */
+  preview?: boolean;
 }
 
 // ── constants (scene units = metres) ──────────────────────────────────────────
@@ -301,6 +307,7 @@ export default function MassingScene({
   areaM2,
   maxFar,
   farIsReal = false,
+  preview = false,
 }: MassingSceneProps): React.JSX.Element {
   const parcelArea =
     areaM2 && Number.isFinite(areaM2) && areaM2 > 0 ? areaM2 : DEFAULT_AREA;
@@ -416,7 +423,17 @@ export default function MassingScene({
     controls.maxDistance = 420;
     controls.maxPolarAngle = Math.PI / 2 - 0.04;
     controls.target.set(0, 24, 0);
+    // Preview mode is hands-off: kill all user interaction so the always-on
+    // canvas never steals page scroll / clicks; keep autoRotate driving the
+    // turntable (controls.update() in the RAF below keeps it spinning).
+    if (preview) {
+      controls.enableZoom = false;
+      controls.enablePan = false;
+      controls.enableRotate = false;
+      controls.autoRotate = true;
+    } else {
       controls.autoRotate = autoRotate;
+    }
     controls.autoRotateSpeed = 0.6;
     controls.update();
     controlsRef.current = controls;
@@ -587,14 +604,17 @@ export default function MassingScene({
     placeSun(hour);
   }, [hour, placeSun]);
 
-  // apply auto-rotate toggle.
+  // apply auto-rotate toggle (preview keeps it permanently on — no control).
   useEffect(() => {
+    if (preview) return;
     if (controlsRef.current) controlsRef.current.autoRotate = autoRotate;
-  }, [autoRotate]);
+  }, [autoRotate, preview]);
 
   if (webglFailed) {
     return (
-      <div className={styles.massingViewport}>
+      <div
+        className={preview ? styles.massingPreviewViewport : styles.massingViewport}
+      >
         <div className={styles.massingFallback}>
           <div className={styles.massingFallbackTitle}>
             3D-просмотр недоступен
@@ -608,6 +628,11 @@ export default function MassingScene({
     );
   }
 
+  // Preview: only the autorotating viewport — no sliders / metrics chrome.
+  if (preview) {
+    return <div ref={mountRef} className={styles.massingPreviewViewport} />;
+  }
+
   return (
     <div className={styles.massingWrap}>
       <div ref={mountRef} className={styles.massingViewport} />

frontend/src/components/site-finder/ptica/massing/MassingViewer.tsx

@@ -29,7 +29,28 @@ const MassingScene = dynamic(
 );
 
 export function MassingViewer(props: MassingSceneProps): React.JSX.Element {
+  // The compact preview canvas (lower-grid card) gets a matching compact
+  // skeleton so the lazy-mount placeholder is the same ~150px box, not 380px.
+  if (props.preview) {
+    return (
+      <MassingScenePreview {...props} />
+    );
+  }
   return <MassingScene {...props} />;
 }
 
+const MassingScenePreview = dynamic(
+  () => import("@/components/site-finder/ptica/massing/MassingScene"),
+  {
+    ssr: false,
+    loading: () => (
+      <div className={styles.massingPreviewViewport}>
+        <div className={styles.massingSkeleton} aria-hidden="true">
+          Загрузка 3D…
+        </div>
+      </div>
+    ),
+  },
+);
+
 export default MassingViewer;

frontend/src/components/site-finder/ptica/ptica-adapt.ts

@@ -111,7 +111,7 @@ function formatFar(far: number): string {
  * Real parcel area in m² when geometry is known (area_ha × 10000); null
  * otherwise. The single point at which we turn area_ha into m² for ёмкость.
  */
-function parcelAreaM2(a: ParcelAnalysis): number | null {
+export function parcelAreaM2(a: ParcelAnalysis): number | null {
   const areaHa = a.geometry_suitability?.area_ha;
   return areaHa != null ? areaHa * 10000 : null;
 }

frontend/src/types/forecast.ts

@@ -262,6 +262,11 @@ export interface ReportProductTz {
   reasons: ProductReason[];
   /** Короткий RU-текст про рекомендованный продукт. */
   summary: string | null;
+  /**
+   * Оговорка по gate-вердикту: рекомендация условна, если МКД-строительство под
+   * вопросом (gate: Нельзя). null когда gate не ограничивает.
+   */
+  gate_caveat?: string | null;
 }
 
 // ── Scoring (§13.6 — прозрачность скоринга, #985/#986) ───────────────────────