fix: Correct critical bugs and complete Creature/Group DataModel implementation

- Fix TypeError: controls.find is not a function in hooks.mjs
- Fix undefined 'npc' variable in applications.mjs
- Fix CONFIG.VERMINE.model undefined by checking game.system.template existence
- Fix TypeError: html.find(...).forEach is not a function in roll.mjs
- Fix Cannot set properties of undefined (setting 'initial') in actor.mjs
- Fix Cannot read properties of undefined (reading 'difficulty') in actor.mjs
- Fix ActiveEffect application phase 'initial' already completed by adding combatStatus to base template
- Fix Missing helper: 'select' in roll-dialog.hbs (removed invalid Handlebars select block)
- Add SIZE_LEVELS labels to creatureSizeLevels config
- Add SIZE_LEVELS translations to fr.json
- Add combatStatus to base actor template
- Convert all .html templates to .hbs for Foundry v14 compatibility
- Update item-sheet.mjs to use .hbs extension
- Update handlebars-manager.mjs to use .hbs for all partials

Complete Vermine2047 Creature and Group sheet implementation:
- Creature: Pattern, Size, Role, Pack with computed values
- Group: Totem, Reserve, Morale, Objectives, Members management
- All templates functional with proper styling

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

module/system/applications.mjs

@@ -79,7 +79,7 @@ export class ActorPicker extends Application {
     if (type == 'members') {
       actorsList = characters;
     } else if (type == 'relations') {
-      actorsList = npc;//[...npc, ...characters];
+      actorsList = npcs;//[...npcs, ...characters];
     } else {
       actorsList = all;
     }
@@ -94,26 +94,33 @@ export class ActorPicker extends Application {
     html.find('.actor').click(async (event) => {
       const actorId = $(event.target).parent('div').data('actor-id');
       const type = $(this.linkEl).data('type');
+      
+      if (!actorId) return;
+      
       let actorsList = [];
 
       if (type == 'members') {
-        actorsList = this.actor.system.members;
+        actorsList = foundry.utils.duplicate(this.actor.system.members || []);
       } else if (type == 'encounters') {
-        actorsList = this.actor.system.encounters;
+        actorsList = foundry.utils.duplicate(this.actor.system.encounters || []);
       }
+      
       if (!Array.isArray(actorsList)) {
         actorsList = [];
       }
 
-      actorsList.push(actorId);
-
-      if (type == 'members') {
-        actorsList = this.actor.system.members;
-        this.actor.update({ 'system.members': actorsList });
-      } else if (type == 'encounters') {
-        this.actor.update({ 'system.encounters': actorsList });
+      // Add actor if not already present
+      if (!actorsList.includes(actorId)) {
+        actorsList.push(actorId);
       }
 
+      if (type == 'members') {
+        await this.actor.update({ 'system.members': actorsList });
+      } else if (type == 'encounters') {
+        await this.actor.update({ 'system.encounters': actorsList });
+      }
+      
+      this.close();
     });
   }