Suppression item Attribut : redondant avec le DataModel personnage

- DataModel CelestopolAttribute supprimé (items.mjs)
- CelestopolAttributeSheet supprimée (item-sheets.mjs)
- Imports/registrations retirés (fvtt-celestopol.mjs)
- Section 'Attributs' supprimée de character-competences.hbs
- Action createAttribute + contexte attributes retirés (character-sheet.mjs)
- Template attribute.hbs supprimé
- Clés i18n attribute/attributes/newAttribute supprimées (fr.json)
- Type 'attribute' retiré des htmlFields (system.json)
- htmlFields anomaly corrigés : technique/narratif/exemples

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

module/models/_module.mjs

@@ -1,3 +1,3 @@
 export { default as CelestopolCharacter } from "./character.mjs"
 export { default as CelestopolNPC } from "./npc.mjs"
-export { CelestopolAnomaly, CelestopolAspect, CelestopolAttribute, CelestopolEquipment } from "./items.mjs"
+export { CelestopolAnomaly, CelestopolAspect, CelestopolEquipment } from "./items.mjs"

module/models/items.mjs

@@ -1,6 +1,6 @@
 import { SYSTEM } from "../config/system.mjs"
 
-/** Schéma partagé pour les bonus/malus par domaine (utilisé dans anomaly/aspect/attribute). */
+/** Schéma partagé pour les bonus/malus par domaine (utilisé dans anomaly/aspect). */
 function skillScoresSchema() {
   const fields = foundry.data.fields
   const reqInt = { required: true, nullable: false, integer: true }
@@ -57,21 +57,6 @@ export class CelestopolAspect extends foundry.abstract.TypeDataModel {
   }
 }
 
-export class CelestopolAttribute extends foundry.abstract.TypeDataModel {
-  static defineSchema() {
-    const fields = foundry.data.fields
-    const reqInt = { required: true, nullable: false, integer: true }
-    return {
-      value:       new fields.NumberField({ ...reqInt, initial: 0, min: 0, max: 8 }),
-      scores:      skillScoresSchema(),
-      description: new fields.HTMLField({ required: true, textSearch: true }),
-      technique:   new fields.HTMLField({ required: true, textSearch: true }),
-      narratif:    new fields.HTMLField({ required: true, textSearch: true }),
-      notes:       new fields.HTMLField({ required: true, textSearch: true }),
-    }
-  }
-}
-
 export class CelestopolEquipment extends foundry.abstract.TypeDataModel {
   static defineSchema() {
     const fields = foundry.data.fields