ActiveEffects: Add complete ActiveEffects management system

- New: modules/mournblade-cyd2-effects.js with utility methods for creating, applying, and managing effects
- New: templates/partial-active-effects.hbs for displaying actor effects
- New: templates/partial-item-effects.hbs for displaying item effects
- Update: modules/mournblade-cyd2-config.js with effect configuration (types, attribute keys, categories)
- Update: templates/actor-sheet.hbs and creature-sheet.hbs with Effects tab
- Update: templates/partial-item-nav.hbs with conditional Effects tab
- Update: templates/item-talent-sheet.hbs with Effects tab content
- Update: base-actor-sheet.mjs with effect action handlers (create, edit, delete, toggle)
- Update: base-item-sheet.mjs with effect action handlers and context
- Update: modules/mournblade-cyd2-main.js to import and expose MournbladeCYD2Effects
- Update: lang/fr.json with effect-related translations

Features:
- Support for creating permanent and temporary effects
- Support for attribute modifications (ADR, PUI, CLA, PRE, TRE, etc.)
- Support for health, soul, combat, and adversity modifications
- Support for status effects
- Support for runes (pronounced and traced) effects
- Toggle to enable/disable effects
- Duration tracking (rounds, turns, seconds, combat, scene)
- Display of all active modifications summary

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

modules/applications/sheets/base-actor-sheet.mjs

@@ -60,6 +60,12 @@ export default class MournbladeCYD2ActorSheetV2 extends HandlebarsApplicationMix
       rollDesengager: MournbladeCYD2ActorSheetV2.#onRollDesengager,
       rollInitiative: MournbladeCYD2ActorSheetV2.#onRollInitiative,
       rollFuir: MournbladeCYD2ActorSheetV2.#onRollFuir,
+      // Actions pour les ActiveEffects
+      createEffect: MournbladeCYD2ActorSheetV2.#onCreateEffect,
+      editEffect: MournbladeCYD2ActorSheetV2.#onEditEffect,
+      deleteEffect: MournbladeCYD2ActorSheetV2.#onDeleteEffect,
+      toggleEffect: MournbladeCYD2ActorSheetV2.#onToggleEffect,
+      applyEffect: MournbladeCYD2ActorSheetV2.#onApplyEffect,
     },
   };
 
@@ -310,4 +316,118 @@ export default class MournbladeCYD2ActorSheetV2 extends HandlebarsApplicationMix
   static async #onRollFuir(event, target) {
     await this.document.rollFuir();
   }
+
+  // #region ActiveEffects Management
+
+  /**
+   * Crée un nouvel effet actif
+   * @param {Event} event - Événement
+   * @param {HTMLElement} target - Éléments cible
+   * @private
+   */
+  static async #onCreateEffect(event, target) {
+    event.preventDefault();
+    
+    // Créer les données par défaut pour un nouvel effet
+    const defaultEffectData = {
+      name: game.i18n.localize("MOURNBLADECYD2.effect.new") || "Nouvel Effet",
+      icon: "systems/fvtt-mournblade-cyd-2-0/assets/icons/effect.webp",
+      description: "",
+      changes: [],
+      disabled: false,
+      duration: {},
+      origin: this.document.uuid,
+      tint: "",
+      transfer: true,
+      flags: {}
+    };
+    
+    // Utiliser la dialog native FoundryVTT pour créer l'effet
+    const effect = await foundry.applications.api.ActiveEffectDialog.create({
+      document: this.document,
+      effect: defaultEffectData
+    });
+    
+    if (effect) {
+      await this.document.createEmbeddedDocuments("ActiveEffect", [effect.toObject()]);
+    }
+  }
+
+  /**
+   * Édite un effet actif existant
+   * @param {Event} event - Événement
+   * @param {HTMLElement} target - Éléments cible
+   * @private
+   */
+  static async #onEditEffect(event, target) {
+    event.preventDefault();
+    const effectId = target?.dataset?.effectId;
+    if (!effectId) return;
+    
+    const effect = this.document.effects.get(effectId);
+    if (effect) {
+      // Ouvrir la sheet de l'effet pour édition
+      effect.sheet.render(true);
+    }
+  }
+
+  /**
+   * Supprime un effet actif
+   * @param {Event} event - Événement
+   * @param {HTMLElement} target - Éléments cible
+   * @private
+   */
+  static async #onDeleteEffect(event, target) {
+    event.preventDefault();
+    const effectId = target?.dataset?.effectId;
+    if (!effectId) return;
+    
+    const effect = this.document.effects.get(effectId);
+    if (effect) {
+      const confirmed = await foundry.applications.api.DialogV2.confirm({
+        title: game.i18n.localize("MOURNBLADECYD2.effect.deleteConfirm") || "Supprimer l'effet",
+        content: game.i18n.localize("MOURNBLADECYD2.effect.deleteConfirmText") || `Êtes-vous sûr de vouloir supprimer l'effet "${effect.name}" ?`
+      });
+      
+      if (confirmed) {
+        await this.document.deleteEmbeddedDocuments("ActiveEffect", [effectId]);
+      }
+    }
+  }
+
+  /**
+   * Toggle l'état actif/désactivé d'un effet
+   * @param {Event} event - Événement
+   * @param {HTMLElement} target - Éléments cible
+   * @private
+   */
+  static async #onToggleEffect(event, target) {
+    event.preventDefault();
+    const effectId = target?.dataset?.effectId;
+    if (!effectId) return;
+    
+    const effect = this.document.effects.get(effectId);
+    if (effect) {
+      await effect.update({ disabled: !effect.disabled });
+    }
+  }
+
+  /**
+   * Applique un effet à partir d'un item
+   * @param {Event} event - Événement
+   * @param {HTMLElement} target - Éléments cible
+   * @private
+   */
+  static async #onApplyEffect(event, target) {
+    event.preventDefault();
+    const effectId = target?.dataset?.effectId;
+    if (!effectId) return;
+    
+    const effect = this.document.effects.get(effectId);
+    if (effect) {
+      await effect.apply();
+    }
+  }
+
+  // #endregion
 }