CHARAKTERBOGEN-2 (E1): Trait-Katalog in 4 Kategorien + 10 neue Traits + Warnsignale

- de.ts: traits-Array -> traitCategories (4 Kategorien: Sozialverhalten / Eignung &
  Umgang / Hobbys & Eigenarten / Wesen & Temperament); alle 15 bestehenden Keys
  erhalten (stored auf Live-Tieren); 10 neue Keys additiv; warn:true auf
  schwer-vergesellschaftbar + territorial.
- format/traits.ts: TraitEntry/TraitCategory-Interface, TRAIT_CATEGORIES-Export,
  ALL_TRAITS via flatMap, neuer isWarnTrait()-Helper.
- Charakterbogen.tsx: grouped-Rendering nach Kategorie (section + h4); warn-Chips
  mit trait-chip--warn-Klasse + trait-warn-badge.
- charakterbogen.css: .trait-category__heading + .trait-chip--warn (amber) +
  .trait-warn-badge.
- format/__tests__/traits.test.ts: 14 neue Vitest-Tests (Kategorien, Keys, warn,
  traitLabel/traitLabels).
- Gate: vitest 122/122, tsc clean, build clean, eslint clean.

gerbil-manager-web/src/format/traits.ts

@@ -1,9 +1,23 @@
-/** FEAT-14: map character trait KEYS (stored) <-> German LABELS (de.character.traits). */
+/** CHARAKTERBOGEN-2: map character trait KEYS (stored) <-> German LABELS (de.character.traitCategories). */
 import { de } from '../strings/de'
 
-export const ALL_TRAITS = de.character.traits
+export interface TraitEntry {
+  key: string
+  label: string
+  warn?: true
+}
 
-const LABEL_BY_KEY = new Map<string, string>(de.character.traits.map((t) => [t.key, t.label]))
+export interface TraitCategory {
+  category: string
+  traits: readonly TraitEntry[]
+}
+
+export const TRAIT_CATEGORIES: ReadonlyArray<TraitCategory> =
+  de.character.traitCategories as unknown as ReadonlyArray<TraitCategory>
+
+export const ALL_TRAITS: readonly TraitEntry[] = TRAIT_CATEGORIES.flatMap((c) => c.traits)
+
+const LABEL_BY_KEY = new Map<string, string>(ALL_TRAITS.map((t) => [t.key, t.label]))
 
 export function traitLabel(key: string): string {
   return LABEL_BY_KEY.get(key) ?? key
@@ -13,3 +27,7 @@ export function traitLabel(key: string): string {
 export function traitLabels(keys: readonly string[] | null | undefined): string[] {
   return (keys ?? []).map(traitLabel)
 }
+
+export function isWarnTrait(key: string): boolean {
+  return ALL_TRAITS.some((t) => t.key === key && t.warn === true)
+}