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>

templates/item/item-sheet.hbs

@@ -0,0 +1,30 @@
+{{!-- This template is a fallback for when items don't have more specific templates. --}}
+{{!-- Generally, you'll want to make more specific templates when possible. --}}
+<form class="{{cssClass}}" autocomplete="off">
+  <header class="sheet-header">
+    <img class="profile-img" src="{{item.img}}" data-edit="img" title="{{item.name}}"/>
+    <div class="header-fields">
+      <h1 class="charname"><input name="name" type="text" value="{{item.name}}" placeholder="Name"/></h1>
+    </div>
+  </header>
+
+  {{!-- Sheet Tab Navigation --}}
+  <nav class="sheet-tabs tabs" data-group="primary">
+    <a class="item" data-tab="description">Description</a>
+    <a class="item" data-tab="attributes">Attributes</a>
+  </nav>
+
+  {{!-- Sheet Body --}}
+  <section class="sheet-body">
+
+    {{!-- Description Tab --}}
+    <div class="tab" data-group="primary" data-tab="description">
+      {{editor system.description target="system.description" rollData=rollData button=true owner=owner editable=editable}}
+    </div>
+
+    {{!-- Attributes Tab --}}
+    <div class="tab attributes" data-group="primary" data-tab="attributes">
+      {{!-- As you add new fields, add them in here! --}}
+    </div>
+  </section>
+</form>