feat: gestion de la Fiabilité du matériel (test de Fiabilité + réparations)

- module/system/reliability.mjs : VermineReliability
  - Test de Fiabilité : jet Xd10 (Mineurs 1D / Graves 3D / Critiques 5D),
    chaque dé >= Fiabilité inflige 1 Dommage ; réduit Fiabilité et dommages
    cumulés (panne/état/effet) ; destruction à 0
  - Traits appliqués : Coque (absorbe n puis se perd), Cassant (+1 perte),
    Étanche (Dommages d'immersion ignorés si Fiabilité au max)
  - Réparations : classique (Précision + Artisanat/Mécanique/Technologie/
    Armurerie vs Fiabilité d'origine + Handicap de panne, +1 Fiabilité/Réussite)
    et de fortune (Précision + Bricolage, panne réparée sans gain de Fiabilité)
- ReliabilityDialog (test/réparation) + cartes de chat dédiées
- Boutons Test de Fiabilité / Réparer sur les fiches d'items (weapon/defense/item)
- i18n fr/en + styles des cartes et boutons

less/base.less

@@ -1171,3 +1171,164 @@ ol.chat-log {
     }
   }
 }
+
+// ── Test de Fiabilité / Réparations ──────────────────────────────────
+.vermine-reliability-message {
+  padding: 4px 10px 10px;
+
+  .reliability-header {
+    align-items: center;
+    gap: 8px;
+
+    img {
+      flex: 0 0 auto;
+      width: 36px;
+      height: 36px;
+      object-fit: cover;
+      border-radius: 3px;
+      border: 1px solid @color-border-dark-4;
+    }
+
+    h3 {
+      font-family: "DistressBlack";
+      text-transform: uppercase;
+      font-size: @font-size-13;
+      margin: 0;
+      border-bottom: none;
+      color: @theme-color-dark;
+    }
+  }
+
+  .reliability-meta {
+    gap: 4px 12px;
+    margin: 4px 0 6px;
+    padding: 4px 8px;
+    background: rgba(0, 0, 0, 0.06);
+    border-radius: 3px;
+
+    .reliability-meta-item {
+      font-family: "Roboto", sans-serif;
+      font-size: @font-size-11;
+      color: @color-text-dark-primary;
+
+      strong {
+        text-transform: uppercase;
+      }
+    }
+  }
+
+  .reliability-results {
+    gap: 6px;
+    margin: 6px 0;
+
+    .reliability-die {
+      flex: none;
+      width: 34px;
+      height: 34px;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      font-family: "DistressBlack";
+      font-size: @font-size-16;
+      border: 1px solid @color-border-dark-4;
+      border-radius: 50%;
+      background: rgba(0, 0, 0, 0.08);
+      color: @color-text-dark-primary;
+
+      &.damage {
+        border-color: @color-hemolymph;
+        background: fade(@color-hemolymph, 15%);
+        color: @color-hemolymph;
+        font-weight: 900;
+      }
+
+      &.success {
+        border-color: @color-acid-green;
+        background: fade(@color-acid-green, 15%);
+        color: @color-acid-green;
+        font-weight: 900;
+      }
+    }
+  }
+
+  .reliability-summary {
+    gap: 4px 16px;
+    margin: 4px 0;
+    font-family: "Roboto", sans-serif;
+    font-size: @font-size-12;
+    color: @color-text-dark-primary;
+
+    strong {
+      text-transform: uppercase;
+    }
+  }
+
+  .reliability-note {
+    margin: 2px 0;
+    font-size: @font-size-11;
+    font-style: italic;
+    color: @color-text-dark-secondary;
+  }
+
+  .reliability-destroyed {
+    margin: 6px 0 0;
+    padding: 4px 8px;
+    font-family: "DistressBlack";
+    text-transform: uppercase;
+    font-size: @font-size-12;
+    text-align: center;
+    color: @color-hemolymph;
+    border: 1px solid @color-hemolymph;
+    border-radius: 3px;
+    background: fade(@color-hemolymph, 12%);
+  }
+}
+
+.item .reliability-actions {
+  gap: 6px;
+  justify-content: center;
+  margin: 4px 0 8px;
+
+  button {
+    font-family: "DistressBlack", sans-serif;
+    text-transform: uppercase;
+    font-size: @font-size-11;
+    padding: 3px 12px;
+    cursor: pointer;
+    color: @theme-color-dark;
+    background: fade(@color-hemolymph, 15%);
+    border: 1px solid @color-hemolymph;
+    border-radius: 3px;
+    .transition();
+
+    &:hover {
+      color: @theme-color-dark;
+      background: @color-hemolymph;
+    }
+
+    i {
+      margin-right: 4px;
+    }
+  }
+}
+
+.reliability-severities,
+.reliability-modes {
+  gap: 8px;
+
+  .reliability-option {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    cursor: pointer;
+    font-size: @font-size-12;
+    color: @color-text-dark-primary;
+  }
+}
+
+.reliability-hint {
+  margin: 0;
+  font-size: @font-size-11;
+  font-style: italic;
+  color: @color-text-dark-secondary;
+}