feat: enhance item tooltips with binding, description, speed, and spell effects

- Parse Bonding and Description fields from SMSG_ITEM_QUERY_SINGLE_RESPONSE
  (read after the 5 spell slots: bindType uint32, then description cstring)
- Add bindType and description to ItemQueryResponseData and ItemDef
- Propagate bindType and description through all 5 rebuildOnlineInventory paths
- Tooltip now shows: "Binds when picked up/equipped/used/quest item"
- Tooltip now shows weapon damage range ("X - Y Damage") and speed ("Speed 2.60")
  on same line, plus DPS in parentheses below
- Tooltip now shows spell effects ("Use: <SpellName>", "Equip: <SpellName>",
  "Chance on Hit: ...") using existing getSpellName() lookup
- Tooltip now shows item flavor/lore description in italic-style yellow text

src/game/world_packets.cpp

@@ -2518,6 +2518,14 @@ bool ItemQueryResponseParser::parse(network::Packet& packet, ItemQueryResponseDa
         packet.readUInt32(); // SpellCategoryCooldown
     }
 
+    // Bonding type (0=none, 1=BoP, 2=BoE, 3=BoU, 4=BoQ)
+    if (packet.getReadPos() + 4 <= packet.getSize())
+        data.bindType = packet.readUInt32();
+
+    // Flavor/lore text (Description cstring)
+    if (packet.getReadPos() < packet.getSize())
+        data.description = packet.readString();
+
     data.valid = !data.name.empty();
     return true;
 }