DNF90 服务端与启动器完整源码（含 GM 工具功能增强）

服务端（Go）：
- GM 塞背包/带属性装备发放：在线角色推送 op14 增量物品行，背包实时刷新，无需回角色选择界面
- GM 改金币/改等级：去掉在线拒绝，落库后推送 op14 钱包/op37 等级状态，在线实时刷新
- 等级端点统一切换到新版 GMSetCharacterLevel（自带在线刷新）
- 无限/锁死疲劳模式 + 燃烧疲劳：每房间消耗 2 点、打怪与通关经验双倍
- 燃烧疲劳开关时给所有在线角色推送系统提示（op12 mode 0）
- 深渊史诗掉率：GM 全局倍率 + 城镇增益药剂窗口倍率，真实接入掉落结算

启动器（Python/JS）：
- 标题栏自绘、窗口 1204x717、禁止拖拽改大小、仅最小化/关闭
- GM 工具：疲劳与燃烧、深渊史诗掉率、拍卖行上架（单一定价对齐）
- 拍卖行上架前端对齐服务端单一价格语义，修复 400 报错

server/internal/modules/dnf/inventory/random_option_request.go

@@ -0,0 +1,84 @@
+package inventory
+
+import (
+	"fmt"
+	"math"
+)
+
+// UnsealRandomOptionRequest is current NoPack class1/op401:
+// u16 client collection key + u16 inventory-manager state.
+type UnsealRandomOptionRequest struct {
+	TargetSlotIndex       int16
+	InventoryManagerState uint16
+}
+
+// ChangeRandomOptionRequest is current NoPack class1/op437:
+// u16 client collection key + literal u16 zero + u8 zero-based option index.
+type ChangeRandomOptionRequest struct {
+	TargetSlotIndex int16
+	Reserved        uint16
+	OptionIndex     byte
+}
+
+// ResetRandomOptionRequest is current NoPack class1/op455 (装备品级调整箱调整
+// 封印属性品级): u16 target collection key + u16 material (adjustment box)
+// collection key + u16 zero-based seal option index, which is the attribute the
+// client's dropdown selected. Live 90 traffic is
+// "3100 5300 0000" -> target 49, material 83, index 0.
+type ResetRandomOptionRequest struct {
+	TargetSlotIndex   int16
+	MaterialSlotIndex int16
+	OptionIndex       byte
+}
+
+func DecodeUnsealRandomOptionRequest(body []byte) (UnsealRandomOptionRequest, error) {
+	if len(body) != 4 {
+		return UnsealRandomOptionRequest{}, fmt.Errorf("unseal random option body length %d, want 4", len(body))
+	}
+	slot := uint16(readI16(body, 0))
+	if slot > math.MaxInt16 {
+		return UnsealRandomOptionRequest{}, fmt.Errorf("unseal random option collection key %d exceeds main inventory range", slot)
+	}
+	return UnsealRandomOptionRequest{TargetSlotIndex: int16(slot), InventoryManagerState: uint16(readI16(body, 2))}, nil
+}
+
+func DecodeChangeRandomOptionRequest(body []byte) (ChangeRandomOptionRequest, error) {
+	if len(body) != 5 {
+		return ChangeRandomOptionRequest{}, fmt.Errorf("change random option body length %d, want 5", len(body))
+	}
+	slot := uint16(readI16(body, 0))
+	if slot > math.MaxInt16 {
+		return ChangeRandomOptionRequest{}, fmt.Errorf("change random option collection key %d exceeds main inventory range", slot)
+	}
+	reserved := uint16(readI16(body, 2))
+	if reserved != 0 {
+		return ChangeRandomOptionRequest{}, fmt.Errorf("change random option reserved value 0x%04X, want 0", reserved)
+	}
+	return ChangeRandomOptionRequest{TargetSlotIndex: int16(slot), Reserved: reserved, OptionIndex: body[4]}, nil
+}
+
+// DecodeResetRandomOptionRequest parses the six-byte op455 body. The tracked
+// live packet is exactly six bytes; a longer body is accepted because the
+// client zero-pads its trailing state, but the first six bytes are authoritative.
+func DecodeResetRandomOptionRequest(body []byte) (ResetRandomOptionRequest, error) {
+	if len(body) < 6 {
+		return ResetRandomOptionRequest{}, fmt.Errorf("reset random option body length %d, want at least 6", len(body))
+	}
+	target := uint16(readI16(body, 0))
+	if target > math.MaxInt16 {
+		return ResetRandomOptionRequest{}, fmt.Errorf("reset random option target key %d exceeds main inventory range", target)
+	}
+	material := uint16(readI16(body, 2))
+	if material > math.MaxInt16 {
+		return ResetRandomOptionRequest{}, fmt.Errorf("reset random option material key %d exceeds main inventory range", material)
+	}
+	optionIndex := uint16(readI16(body, 4))
+	if optionIndex > randomOptionMaximumCount-1 {
+		return ResetRandomOptionRequest{}, fmt.Errorf("reset random option index %d outside 0..%d", optionIndex, randomOptionMaximumCount-1)
+	}
+	return ResetRandomOptionRequest{
+		TargetSlotIndex:   int16(target),
+		MaterialSlotIndex: int16(material),
+		OptionIndex:       byte(optionIndex),
+	}, nil
+}