refactor: remove D30 choice dialog, extract defense reaction buttons, fix bugs

- Remove D30 choice dialog — auto-roll bonus dice, flag special effects
- Fix d30ChangedAttack infinite loop in defense do-while (missing reset)
- Fix chat button dataset attributes (rollType/rollTarget/rollAvantage)
- Extract buildDefenseReactionButtons from both defense loops
- Merge Aether/Grace deduction via _deductResourceOnCast helper
- Extract HP HUD toggling (_toggleHudWraps/_disableHudWraps)
- Fix SYSTEM.EQUIPMENT_CATEGORIES typo in equipment model
- Add missing imports to combat.mjs
- Remove dead d30Auto branches, _buildSpecialLabel, d30-special-choice.hbs

templates/chat/reaction-message.hbs

@@ -21,10 +21,8 @@
     adds <strong>{{formula}}</strong> and rolls <strong>{{value}}</strong> for {{side}}.
   {{else if (equals type "d30Bonus")}}
     gains <strong>+{{value}}</strong> from D30 bonus die for {{side}}.
-  {{else if (equals type "d30Auto")}}
-    uses <strong>{{specialName}}</strong> from D30 — {{#if (equals side "defense")}}defense automatically succeeds!{{else}}attack automatically hits!{{/if}}
   {{else if (equals type "d30Flag")}}
-    D30 — <strong>{{specialName}}</strong> triggered for {{actorName}}!
+    D30 — <strong>{{specialName}}</strong> possible for {{actorName}}!
   {{else if (equals type "d30Bleed")}}
     D30 — <strong>Bleeding/Internal Injury</strong> on hit! Damage past DR will cause a bleeding wound.
   {{else if (equals type "d30DamageMultiplier")}}