GEN-1: expose CATALOG seed view (Name/CanonicalGenotype/SortOrder) for DATA-2 + round-trip test

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

gerbil-manager-web/src/genetics/catalog.ts

@@ -14,8 +14,8 @@
  *  - rennmaus-info.jimdoweb.com (loci & colourpoint series)
  *  - clan-of-topolino.ch, rennmauswelten.jimdofree.com (Zobel, Schimmel)
  */
-import type { LocusKey } from './loci'
-import type { Genotype } from './genotype'
+import { LOCUS_ORDER, type LocusKey } from './loci'
+import { makeGenotype, toDisplayString, wildType, type AllelePair, type Genotype } from './genotype'
 import { phenotypeTokens, type PhenotypeTokens } from './phenotype'
 
 export interface FarbschlagEntry {
@@ -105,5 +105,41 @@ export function genotypeToFarbschlag(g: Genotype): string {
   return farbschlagFor(g).name
 }
 
+/**
+ * A representative full genotype for a catalog entry: each specified locus is
+ * homozygous for its token allele; unspecified loci take the wild-type allele.
+ * This is the entry's CanonicalGenotype for DB seeding.
+ */
+export function representativeGenotype(entry: FarbschlagEntry): Genotype {
+  const base = wildType()
+  const out = {} as Record<LocusKey, AllelePair>
+  for (const locus of LOCUS_ORDER) {
+    const token = entry.tokens[locus]
+    out[locus] = token ? [token, token] : base[locus]
+  }
+  return makeGenotype(out)
+}
+
+/**
+ * DB seed view for DATA-2's ColorVariety table. Each row mirrors the table
+ * shape (Name, CanonicalGenotype, SortOrder). SortOrder = catalog position.
+ *
+ * IMPORTANT: `name` values become DB keys the UI filters on — renames are
+ * BREAKING changes and must be routed through god. Adding new varieties is safe.
+ */
+export interface ColorVarietySeed {
+  readonly name: string
+  readonly english?: string
+  readonly canonicalGenotype: string
+  readonly sortOrder: number
+}
+
+export const CATALOG: readonly ColorVarietySeed[] = BASE_COLORS.map((entry, i) => ({
+  name: entry.name,
+  english: entry.english,
+  canonicalGenotype: toDisplayString(representativeGenotype(entry)),
+  sortOrder: i,
+}))
+
 /** Number of base-colour varieties currently catalogued. */
 export const CATALOG_SIZE = BASE_COLORS.length