feat: add Settlement actor type with Overview/Buildings/Inventory tabs

- New TypeDataModel: archetype, territory, renown, currency (gp/sp/cp),
  garrison, underSiege, isCapital, founded, taxNotes, description, notes
- 3-tab ApplicationV2 sheet with drag & drop for building/weapon/armor/equipment
- Currency steppers (+/−), building constructed toggle, qty controls
- LESS-based CSS (settlement-sheet.less) + base.less updated for shared styles
- Full i18n keys in lang/en.json (8 settlement archetypes)
- system.json: registered settlement actor type

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

templates/spell-cast-dialog.hbs

@@ -34,6 +34,16 @@
       = <strong>{{basePool}}d6</strong>
     </div>
 
+    {{#if poolSizeOptions}}
+    <div class="roll-option-row">
+      <label>{{localize "OATHHAMMER.Dialog.PoolSize"}}</label>
+      <select name="poolSize">
+        {{#each poolSizeOptions}}<option value="{{value}}"{{#if selected}} selected{{/if}}>{{label}}</option>{{/each}}
+      </select>
+      <span class="roll-option-hint">{{localize "OATHHAMMER.Dialog.PoolSizeHint"}}</span>
+    </div>
+    {{/if}}
+
     <div class="roll-option-row">
       <label>{{localize "OATHHAMMER.Dialog.Enhancement"}}</label>
       <select name="enhancement" class="enhancement-select">
@@ -67,6 +77,18 @@
       </select>
     </div>
 
+    {{#if availableLuck}}
+    <div class="roll-option-row roll-option-luck">
+      <label>{{localize "OATHHAMMER.Dialog.LuckSpend"}} <i class="fa-solid fa-clover luck-icon"></i></label>
+      <select name="luckSpend">
+        {{#each luckOptions}}<option value="{{value}}"{{#if selected}} selected{{/if}}>{{label}}</option>{{/each}}
+      </select>
+      <label class="luck-human-label" for="spellLuckIsHuman">{{localize "OATHHAMMER.Dialog.LuckHuman"}}</label>
+      <input type="checkbox" id="spellLuckIsHuman" name="luckIsHuman" value="true" {{#if isHuman}}checked{{/if}} />
+      <span class="roll-option-hint">{{localize "OATHHAMMER.Dialog.LuckHint"}} ({{availableLuck}} {{localize "OATHHAMMER.Dialog.Available"}})</span>
+    </div>
+    {{/if}}
+
     <div class="roll-option-row roll-option-check">
       <label for="spellExplodeOn5">{{localize "OATHHAMMER.Dialog.ExplodeOn5"}}</label>
       <input type="checkbox" id="spellExplodeOn5" name="explodeOn5" />