feat: implémentation complète du système Célestopol 1922 pour FoundryVTT v13

- DataModels (character, npc, anomaly, aspect, attribute, equipment)
- ApplicationV2 sheets (character 5 tabs, npc 3 tabs, 4 item sheets)
- DialogV2 pour les jets de dés avec phase de lune
- Templates Handlebars complets (fiches PJ/PNJ, items, jet, chat)
- Styles LESS → CSS compilé (thème vert foncé / orange CopaseticNF)
- i18n fr.json complet (clés CELESTOPOL.*)
- Point d'entrée fvtt-celestopol.mjs avec hooks init/ready
- Assets : polices CopaseticNF, images UI, icônes items
- Mise à jour copilot-instructions.md avec l'architecture réelle

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

templates/character-factions.hbs

@@ -0,0 +1,63 @@
+<div class="tab factions" data-group="sheet" data-tab="factions">
+  <table class="factions-table">
+    <thead>
+      <tr>
+        <th>{{localize "CELESTOPOL.Faction.label"}}</th>
+        <th>{{localize "CELESTOPOL.Faction.score"}}</th>
+      </tr>
+    </thead>
+    <tbody>
+      {{#each factions as |faction factionId|}}
+      <tr class="faction-row">
+        <td class="faction-name">{{localize faction.label}}</td>
+        <td class="faction-value">
+          {{#if ../isEditMode}}
+            <input type="number" name="system.factions.{{factionId}}.value"
+                   value="{{lookup ../system.factions factionId 'value'}}" min="0">
+          {{else}}
+            <span>{{lookup ../system.factions factionId 'value'}}</span>
+          {{/if}}
+        </td>
+      </tr>
+      {{/each}}
+
+      {{!-- Factions personnalisées --}}
+      <tr class="faction-row custom">
+        <td>
+          {{#if isEditMode}}
+            <input type="text" name="system.factions.perso1.label"
+                   value="{{system.factions.perso1.label}}"
+                   placeholder="{{localize 'CELESTOPOL.Faction.custom'}}">
+          {{else}}
+            <span>{{#if system.factions.perso1.label}}{{system.factions.perso1.label}}{{else}}—{{/if}}</span>
+          {{/if}}
+        </td>
+        <td>
+          {{#if isEditMode}}
+            <input type="number" name="system.factions.perso1.value" value="{{system.factions.perso1.value}}" min="0">
+          {{else}}
+            <span>{{system.factions.perso1.value}}</span>
+          {{/if}}
+        </td>
+      </tr>
+      <tr class="faction-row custom">
+        <td>
+          {{#if isEditMode}}
+            <input type="text" name="system.factions.perso2.label"
+                   value="{{system.factions.perso2.label}}"
+                   placeholder="{{localize 'CELESTOPOL.Faction.custom'}}">
+          {{else}}
+            <span>{{#if system.factions.perso2.label}}{{system.factions.perso2.label}}{{else}}—{{/if}}</span>
+          {{/if}}
+        </td>
+        <td>
+          {{#if isEditMode}}
+            <input type="number" name="system.factions.perso2.value" value="{{system.factions.perso2.value}}" min="0">
+          {{else}}
+            <span>{{system.factions.perso2.value}}</span>
+          {{/if}}
+        </td>
+      </tr>
+    </tbody>
+  </table>
+</div>