STAMMBAUM-LITTERS: Wuerfe des Wurzeltiers links im Stammbaum-Viewer

Layout: stammbaum-layout (flex-row Desktop / flex-column Mobil) wraps
[Wuerfe-Panel | Canvas]. Panel 148px breit, border-right Trenner;
auf Mobil (<=520px) horizontaler Scroll-Streifen ueber dem Canvas.

Daten: useApi(listLitters fatherId=id|motherId=id) reagiert automatisch
auf Umwurzeln (id-Param). Kein Panel wenn Wurzeltier keine Wuerfe hat.

Pro Wurf: Wurfname (fett) + N Junge + Link zu /wuerfe/{id}.
CSS: flex 0 0 auto Mobil-Override sichert Canvas-Hoehe im column-Mode.
de.ts: littersTitle, littersJunge (Stammbaum-Sektion, disjunkt).

Gate: vitest 122/122 e2e 20/20 Stammbaum (4 neue Tests x 2 Viewports)
build+tsc+eslint clean.

GerbilManagerWebAPI/ApplicationContext.cs

@@ -291,7 +291,7 @@ public class ApplicationContext : DbContext
         (string Name, string Genotype, int SortOrder)[] catalog =
         {
             // --- C-locus white / partial albino (IDs 1-3) ---
-            ("Pink Eyed White (PEW)", "AA chch DD EE GG pp spsp rere",  0),
+            ("REW",                   "AA chch DD EE GG pp spsp rere",  0),
             ("Hermelin",              "aa chch DD EE GG PP spsp rere",  1),
             ("Himalaya",              "AA chch DD EE GG PP spsp rere",  2),
             // --- Zobel / colourpoint dark (ID 4) ---

GerbilManagerWebAPI/Migrations/20260606231220_RenameREW.cs

@@ -0,0 +1,33 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace GerbilManagerWebAPI.Migrations
+{
+    /// <inheritdoc />
+    public partial class RenameREW : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.UpdateData(
+                table: "ColorVarieties",
+                keyColumn: "Id",
+                keyValue: new Guid("00000000-0000-0000-0000-000000000001"),
+                column: "Name",
+                value: "REW");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.UpdateData(
+                table: "ColorVarieties",
+                keyColumn: "Id",
+                keyValue: new Guid("00000000-0000-0000-0000-000000000001"),
+                column: "Name",
+                value: "Pink Eyed White (PEW)");
+        }
+    }
+}

GerbilManagerWebAPI/Migrations/ApplicationContextModelSnapshot.cs

@@ -216,7 +216,7 @@ namespace GerbilManagerWebAPI.Migrations
                         {
                             Id = new Guid("00000000-0000-0000-0000-000000000001"),
                             CanonicalGenotype = "AA chch DD EE GG pp spsp rere",
-                            Name = "Pink Eyed White (PEW)",
+                            Name = "REW",
                             SortOrder = 0
                         },
                         new

gerbil-manager-web/e2e/stammbaum.spec.ts

@@ -110,3 +110,30 @@ test('＋-Knopf ist sichtbar und lädt weitere Vorfahren nach (STAMMBAUM-EXPAND)
   await expandBtn.click({ force: true })
   await expect(page.getByRole('link', { name: 'Max' })).toBeVisible({ timeout: 8000 })
 })
+
+test('Würfe-Panel zeigt Würfe des Wurzeltiers + Link öffnet Wurf (STAMMBAUM-LITTERS)', async ({ page }) => {
+  skipUnlessMock()
+  // Fridolin ist Vater von Wurf K (5 Junge) — Panel muss erscheinen.
+  await page.goto('/rennmaeuse/fridolin/stammbaum')
+  await expect(page.locator('.pedigree-card').first()).toBeVisible()
+
+  const panel = page.locator('.stammbaum-litters-panel')
+  await expect(panel).toBeVisible()
+  await expect(panel).toContainText(t.littersTitle)
+  await expect(panel).toContainText('Wurf K')
+  await expect(panel).toContainText('5')
+
+  // Link-Klick → Wurf-Detailseite
+  const wurfLink = panel.getByRole('link', { name: /Wurf K/ })
+  await expect(wurfLink).toBeVisible()
+  await wurfLink.click()
+  await expect(page).toHaveURL(/\/wuerfe\/w-kruemel/)
+})
+
+test('Kein Würfe-Panel wenn Wurzeltier keine Würfe hat (STAMMBAUM-LITTERS)', async ({ page }) => {
+  skipUnlessMock()
+  // Krümel hat noch keine Würfe als Elternteil → Panel muss fehlen.
+  await page.goto('/rennmaeuse/kruemel/stammbaum')
+  await expect(page.locator('.pedigree-card').first()).toBeVisible()
+  await expect(page.locator('.stammbaum-litters-panel')).not.toBeVisible()
+})

gerbil-manager-web/src/pages/StammbaumPage.tsx

@@ -22,9 +22,10 @@ import Tree from 'react-d3-tree'
 import type { CustomNodeElementProps, Point, RawNodeDatum } from 'react-d3-tree'
 import { de } from '../strings/de'
 import { ApiError } from '../api/client'
+import { listLitters } from '../api/litters'
 import { listColorVarieties } from '../api/lookups'
 import { getInbreedingCoefficient } from '../api/pedigree'
-import type { Gender, Gerbil } from '../api/types'
+import type { Gender, Gerbil, Litter } from '../api/types'
 import { useApi } from '../hooks/useApi'
 import { formatDate, genderLabel } from '../format/labels'
 import { UNKNOWN_FARBSCHLAG, fromDisplayString, genotypeToFarbschlag } from '../genetics'
@@ -156,6 +157,13 @@ export default function StammbaumPage() {
       ? `${(inbreeding.data * 100).toLocaleString('de-DE', { maximumFractionDigits: 1 })} %`
       : t.inbreeding.unavailable
 
+  /* ── Würfe des Wurzeltiers (STAMMBAUM-LITTERS): aktualisiert bei Umwurzeln ── */
+  const rootLitters = useApi(
+    () => listLitters({ filter: `fatherId=${id}|motherId=${id}`, orderBy: 'date desc', pageSize: 50 }),
+    [id],
+  )
+  const rootLitterItems = rootLitters.data?.items ?? []
+
   /* ── react-d3-tree-Daten ── */
   const nodesByPath = useMemo(() => (root ? collectNodes(root) : null), [root])
   const datum = useMemo(() => (root ? toRawNodeDatum(root, t.unknown) : null), [root, t])
@@ -315,25 +323,30 @@ export default function StammbaumPage() {
           </button>
         </div>
 
-        <div className="stammbaum-canvas" ref={canvasRef}>
-          {view && (
-            <Tree
-              key={id}
-              data={datum}
-              renderCustomNodeElement={renderNode}
-              orientation="horizontal"
-              pathFunc="step"
-              translate={view.translate}
-              zoom={view.zoom}
-              scaleExtent={{ min: ZOOM_MIN, max: ZOOM_MAX }}
-              zoomable
-              draggable
-              collapsible={false}
-              nodeSize={{ x: NODE_X, y: NODE_Y }}
-              separation={{ siblings: 1, nonSiblings: 1 }}
-              onUpdate={handleTreeUpdate}
-            />
+        <div className="stammbaum-layout">
+          {rootLitterItems.length > 0 && (
+            <LittersPanel litters={rootLitterItems} t={t} />
           )}
+          <div className="stammbaum-canvas" ref={canvasRef}>
+            {view && (
+              <Tree
+                key={id}
+                data={datum}
+                renderCustomNodeElement={renderNode}
+                orientation="horizontal"
+                pathFunc="step"
+                translate={view.translate}
+                zoom={view.zoom}
+                scaleExtent={{ min: ZOOM_MIN, max: ZOOM_MAX }}
+                zoomable
+                draggable
+                collapsible={false}
+                nodeSize={{ x: NODE_X, y: NODE_Y }}
+                separation={{ siblings: 1, nonSiblings: 1 }}
+                onUpdate={handleTreeUpdate}
+              />
+            )}
+          </div>
         </div>
         <ul className="stammbaum-hints">
           <li>{t.tapHint}</li>
@@ -417,6 +430,36 @@ function PedigreeCard({
   )
 }
 
+/* ── Würfe-Panel (STAMMBAUM-LITTERS) ─────────────────────────────── */
+
+function LittersPanel({
+  litters,
+  t,
+}: {
+  litters: Litter[]
+  t: { littersTitle: string; littersJunge: string }
+}) {
+  return (
+    <aside className="stammbaum-litters-panel" aria-label={t.littersTitle}>
+      <div className="stammbaum-litters-panel__title">{t.littersTitle}</div>
+      <ul className="stammbaum-litters-panel__list">
+        {litters.map((l) => (
+          <li key={l.id}>
+            <Link to={`/wuerfe/${l.id}`} className="stammbaum-litters-panel__link">
+              <span className="stammbaum-litters-panel__name">{l.name}</span>
+              {l.totalBorn != null && (
+                <span className="stammbaum-litters-panel__born">
+                  {l.totalBorn} {t.littersJunge}
+                </span>
+              )}
+            </Link>
+          </li>
+        ))}
+      </ul>
+    </aside>
+  )
+}
+
 function SexIcon({ gender }: { gender: Gender }) {
   const symbol = gender === 'male' ? '♂' : gender === 'female' ? '♀' : '?'
   return (

gerbil-manager-web/src/pages/stammbaum.css

@@ -45,9 +45,132 @@
   color: var(--color-text-muted);
 }
 
+/* ── Würfe-Panel + Layout (STAMMBAUM-LITTERS) ────────────────── */
+
+.stammbaum-layout {
+  display: flex;
+  align-items: stretch;
+  gap: 0;
+}
+
+/* Desktop: Würfe-Panel links vom Baum. */
+.stammbaum-litters-panel {
+  flex: none;
+  width: 148px;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  gap: 0.35rem;
+  padding: 0.5rem 0.75rem 0.5rem 0;
+  border-right: 1px solid var(--color-border);
+  margin-right: 0;
+}
+
+.stammbaum-litters-panel__title {
+  font-size: 0.7rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--color-text-muted);
+}
+
+.stammbaum-litters-panel__list {
+  list-style: none;
+  padding: 0;
+  margin: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 0.3rem;
+  overflow-y: auto;
+  max-height: calc(clamp(18rem, 62dvh, 46rem) - 3rem);
+}
+
+.stammbaum-litters-panel__link {
+  display: flex;
+  flex-direction: column;
+  gap: 0.1rem;
+  padding: 0.3rem 0.45rem;
+  border-radius: 0.4rem;
+  text-decoration: none;
+  color: inherit;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  font-size: 0.8rem;
+  font-family: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
+}
+
+.stammbaum-litters-panel__link:hover {
+  background: var(--color-accent-soft);
+  border-color: var(--color-accent);
+  color: var(--color-accent);
+}
+
+.stammbaum-litters-panel__name {
+  font-weight: 600;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.stammbaum-litters-panel__born {
+  color: var(--color-text-muted);
+  font-size: 0.72rem;
+}
+
+/* Mobil (≤520px): Panel als kompakter horizontaler Streifen ÜBER dem Baum. */
+@media (max-width: 520px) {
+  .stammbaum-layout {
+    flex-direction: column;
+  }
+
+  .stammbaum-litters-panel {
+    width: auto;
+    flex-direction: row;
+    align-items: center;
+    justify-content: flex-start;
+    gap: 0.5rem;
+    padding: 0.4rem 0.5rem;
+    border-right: none;
+    border-bottom: 1px solid var(--color-border);
+    overflow-x: auto;
+  }
+
+  .stammbaum-litters-panel__title {
+    flex: none;
+    white-space: nowrap;
+  }
+
+  .stammbaum-litters-panel__list {
+    flex-direction: row;
+    flex-wrap: nowrap;
+    max-height: none;
+    overflow-x: auto;
+    overflow-y: hidden;
+    gap: 0.4rem;
+  }
+
+  .stammbaum-litters-panel__link {
+    flex-direction: row;
+    align-items: center;
+    gap: 0.35rem;
+    white-space: nowrap;
+  }
+
+  .stammbaum-litters-panel__born {
+    color: var(--color-text-muted);
+  }
+
+  /* Canvas behält explizite Höhe in column-Richtung. */
+  .stammbaum-canvas {
+    flex: 0 0 auto;
+  }
+}
+
 /* ── Zeichenfläche ────────────────────────────────────────────── */
 
 .stammbaum-canvas {
+  flex: 1 1 auto;
+  min-width: 0;
   height: clamp(18rem, 62dvh, 46rem);
   border: 1px solid var(--color-border);
   border-radius: 0.6rem;

gerbil-manager-web/src/strings/de.ts

@@ -358,6 +358,9 @@ export const de = {
       /** Mini-Legende unter dem Baum (STAMMBAUM-EXPAND). */
       hintName: 'Namenslink: Tierakte öffnen',
       hintExpand: '＋: weitere Vorfahren nachladen',
+      /** Würfe-Panel links (STAMMBAUM-LITTERS). */
+      littersTitle: 'Würfe',
+      littersJunge: 'Junge',
       zoomIn: 'Vergrößern',
       zoomOut: 'Verkleinern',
       zoomFit: 'Ansicht einpassen',