Flexible race system with slot-based equipment and dragon race

- Expand race TOML schema: 7 stats, body shape (size/weight/custom slots),
  natural armor and attacks with damage types, resistances, traits/disadvantages,
  regen multipliers, vision types, XP rate, guild compatibility
- Replace equipped_weapon/equipped_armor with slot-based HashMap<String, Object>
- Each race defines available equipment slots; default humanoid slots as fallback
- Combat uses natural weapons/armor from race when no gear equipped
- DB migration from old weapon/armor columns to equipped_json
- Add Dragon race: huge body, custom slots (forelegs/wings/tail), fire breath,
  natural armor 8, fire immune, slow XP rate for balance
- Update all existing races with expanded fields (traits, resistances, vision, regen)
- Objects gain optional slot field; kind=weapon/armor still works as fallback
- Update chargen to display race traits, size, natural attacks, vision
- Update stats display to show equipment and natural bonuses separately
- Update TESTING.md and AGENTS.md with race/slot system documentation

Made-with: Cursor

src/admin.rs

@@ -470,17 +470,15 @@ async fn admin_info(target: &str, state: &SharedState) -> CommandResult {
             s.hp, s.max_hp, s.attack, s.defense, s.level, s.xp, s.xp_to_next
         ));
         out.push_str(&format!("  Room: {}\r\n", p.room_id));
+        let equipped_str = if p.equipped.is_empty() {
+            "none".to_string()
+        } else {
+            p.equipped.iter().map(|(s, o)| format!("{}={}", s, o.name)).collect::<Vec<_>>().join(", ")
+        };
         out.push_str(&format!(
-            "  Inventory: {} item(s) | Weapon: {} | Armor: {}\r\n",
+            "  Inventory: {} item(s) | Equipped: {}\r\n",
             p.inventory.len(),
-            p.equipped_weapon
-                .as_ref()
-                .map(|w| w.name.as_str())
-                .unwrap_or("none"),
-            p.equipped_armor
-                .as_ref()
-                .map(|a| a.name.as_str())
-                .unwrap_or("none"),
+            equipped_str,
         ));
         let attitudes = st.db.load_attitudes(&p.name);
         if !attitudes.is_empty() {