GEN-4 Addendum: 7 Farbarten-Kategorien blockiert + locusToken ef/e-Fix

catalog.ts:
- locusToken E: ef/e -> 'ef' (phenotypisch ausgedrücktes Allel; enables
  catalog-Match fuer het Schimmel-Tiere wie Kohlfuchsschimmel/Orangeschimmel).
  Vorher: 'eef' matchte keinen Katalogeintrag -> Family-Fallback 'Fuchsschimmel'.
- baseColourFor: Family-Fallback entfernt (null statt family-Name) — Familie
  ist nur noch Katalog-Suchfilter, nie direkter Ausgabewert.
- CATEGORY_NAMES Guard in farbschlagFor: Fuchs/Fuchsschimmel/Schimmel/Standard/
  Colourpoint/Dilute/Colourpoint Dilute -> Unbekannter Farbschlag wenn Engine
  diese Namen zurueckgeben wuerde.
- Orangeschimmel: A:'A' hinzugefuegt (Agouti-Einschraenkung), damit aa-ef-Tiere
  durch zu Kohlfuchsschimmel fallen.
- FK-Check: Keine der 7 Kategorie-Namen sind in BASE_COLORS -> 0 FK-Risiko.

genetics.test.ts:
- 'eef with unknown other loci': erwartet jetzt 'Kohlfuchsschimmel' (korrekt!)
- GEN-4 Farbarten-Fixture: Kategorie-Guard-Test + FK-Check-Assert.
Gate: build ✓  eslint ✓  vitest 96/96 ✓  e2e 148/148 ✓

gerbil-manager-web/src/genetics/__tests__/genetics.test.ts

@@ -377,9 +377,11 @@ describe("GEN-3c: unknown allele displays as '-' (stored as '?')", () => {
 })
 
 describe('GEN-3c: no Unbekannt when the E locus is known (family fallback)', () => {
-  it('eef with unknown other loci -> Fuchsschimmel (the reported bug case)', () => {
+  it('eef with unknown other loci -> specific Schimmel variety (GEN-4: Fuchsschimmel is a category)', () => {
+    // GEN-4: locusToken ef/e -> 'ef' enables catalog match; family fallback 'Fuchsschimmel' blocked.
+    // aa + ef/e + C/D/G/P resolved via GEN-3d -> Kohlfuchsschimmel (A:a, C:C, D:D, E:ef, G:G, P:P).
     expect(genotypeToFarbschlag(fromDisplayString('aa C- D- eef Gg Pp spsp --'))).toBe(
-      'Fuchsschimmel',
+      'Kohlfuchsschimmel',
     )
   })
   it('ee -> Fuchs family, efef -> a Schimmel (never Unbekannt) even with unknowns', () => {
@@ -405,9 +407,11 @@ describe('GEN-3d: dominance tiebreak for unknown loci', () => {
     expect(genotypeToFarbschlag(fromDisplayString('AA CC DD EE GG PP sp- rere'))).toBe('Agouti')
   })
 
-  it('still: eef with unknowns -> Fuchsschimmel (family pin unaffected by tiebreak)', () => {
+  it('still: eef with unknowns -> specific variety, not category (GEN-4 update)', () => {
+    // GEN-4: 'Fuchsschimmel' is a Farbart/category; the engine now resolves to the
+    // specific catalog entry (Kohlfuchsschimmel) via the locusToken ef/e -> 'ef' fix.
     expect(genotypeToFarbschlag(fromDisplayString('aa C- D- eef Gg Pp spsp --'))).toBe(
-      'Fuchsschimmel',
+      'Kohlfuchsschimmel',
     )
   })
 })
@@ -561,6 +565,21 @@ describe('GEN-4: Dilute prefix, REW, no-bare-Fuchs', () => {
     expect(name('AA Cch DD EE GG pp spsp rere')).not.toBe('REW')   // Cc[h] + pp
   })
 
+  it('Farbarten (categories) never appear as computed results', () => {
+    // 'Fuchs', 'Fuchsschimmel', 'Schimmel' etc. are Farbarten — blocked by category guard.
+    // het ef/e now resolves to specific variety via locusToken ef/e -> 'ef' fix.
+    expect(genotypeToFarbschlag(fromDisplayString('aa CC DD eef GG PP spsp rere'))).toBe('Kohlfuchsschimmel')
+    // Agouti ef/e: 'Orangeschimmel' wins (same token-set as Algierfuchsschimmel, listed first)
+    expect(genotypeToFarbschlag(fromDisplayString('AA CC DD eef GG PP spsp rere'))).toBe('Orangeschimmel')
+    // Unusual combo not in catalog -> Unbekannt (not 'Fuchsschimmel')
+    expect(farbschlagFor(fromDisplayString('aa CC dd eef GG PP spsp rere')).unknown).toBe(true)
+    // FK check: none of the 7 category names are in BASE_COLORS (no DB entries -> no FK risk)
+    const CATS = ['Standard', 'Colourpoint', 'Dilute', 'Fuchs', 'Fuchsschimmel', 'Schimmel', 'Colourpoint Dilute']
+    for (const cat of CATS) {
+      expect(BASE_COLORS.some(e => e.name === cat)).toBe(false)
+    }
+  })
+
   it('bare Fuchs never appears — dilute-fox combinations are named specifically', () => {
     expect(name('AA CC dd ee GG PP spsp rere')).toBe('Dilute Algierfuchs')
     expect(name('AA CC dd ee GG pp spsp rere')).toBe('Dilute Goldfuchs')