Various fixes and changes based on tester feedback

module/applications/armor-dialog.mjs

@@ -0,0 +1,70 @@
+/**
+ * Armor roll dialog.
+ *
+ * Pool = Armor Value (AV) − AP penalty + manual bonus  (can go to 0, unlike other pools)
+ * Reinforced trait on the armor → red dice (3+)
+ * Each success on the roll reduces incoming damage by 1.
+ */
+export default class OathHammerArmorDialog {
+
+  static async prompt(actor, armor) {
+    const sys = armor.system
+    const av  = sys.armorValue ?? 0
+
+    const isReinforced = [...(sys.traits ?? [])].includes("reinforced")
+
+    // AP options — entered by the user based on the attacker's weapon
+    const apOptions = Array.from({ length: 9 }, (_, i) => ({
+      value: -i,
+      label: i === 0 ? "0" : `−${i}`,
+      selected: i === 0,
+    }))
+
+    const bonusOptions = Array.from({ length: 7 }, (_, i) => {
+      const v = i - 3
+      return { value: v, label: v > 0 ? `+${v}` : String(v), selected: v === 0 }
+    })
+
+    const rollModes = foundry.utils.duplicate(CONFIG.Dice.rollModes)
+
+    const context = {
+      actorName:    actor.name,
+      armorName:    armor.name,
+      armorImg:     armor.img,
+      av,
+      isReinforced,
+      apOptions,
+      bonusOptions,
+      rollModes,
+      visibility: game.settings.get("core", "rollMode"),
+    }
+
+    const content = await foundry.applications.handlebars.renderTemplate(
+      "systems/fvtt-oath-hammer/templates/armor-roll-dialog.hbs",
+      context
+    )
+
+    const result = await foundry.applications.api.DialogV2.wait({
+      window:      { title: game.i18n.format("OATHHAMMER.Dialog.ArmorRollTitle", { armor: armor.name }) },
+      classes:     ["fvtt-oath-hammer"],
+      content,
+      rejectClose: false,
+      buttons: [{
+        label:    game.i18n.localize("OATHHAMMER.Dialog.RollArmor"),
+        callback: (_ev, btn) => Object.fromEntries(
+          [...btn.form.elements].filter(e => e.name).map(e => [e.name, e.value])
+        ),
+      }],
+    })
+
+    if (!result) return null
+
+    return {
+      av,
+      isReinforced,
+      apPenalty:  parseInt(result.ap)    || 0,
+      bonus:      parseInt(result.bonus) || 0,
+      visibility: result.visibility ?? game.settings.get("core", "rollMode"),
+    }
+  }
+}