Add adversité total malus display

Show 'MALUS JETS -X' below adversité cards. Highlights in red when non-zero.
Value = bleue + rouge + noire (same as nbAdversites used in roll formula).
Tooltip explains it's subtracted from all rolls.

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

templates/actor-sheet.hbs

@@ -170,6 +170,12 @@
               {{/each}}
             </div>
 
+            <div class="adversite-total {{#if adversiteTotal}}adversite-total-nonzero{{/if}}"
+                 data-tooltip="Malus soustrait à tous les jets de dés">
+              <span class="adversite-total-label">Malus jets</span>
+              <span class="adversite-total-value">−{{adversiteTotal}}</span>
+            </div>
+
             {{#if isGM}}
             <div class="adversite-modifiers">
               <div class="adversite-modifier-row">