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/services/dnfbridge/party_fanout_stale_target_test.go

@@ -0,0 +1,68 @@
+package dnfbridge
+
+import (
+	"fmt"
+	"testing"
+
+	"longheng.io/server/internal/modules/dnf/dnfenum"
+)
+
+// staleWriteConn stands in for a socket that a previous session generation
+// already closed. Every write fails exactly the way a closed TCPConn fails:
+//
+//	set tcp 10.1.0.16:10023: use of closed network connection
+//
+// which is the error recorded live at 2026-09-25 06:02:14Z for port 10023 (the
+// channel-23 socket of the 05:24 raid generation, closed at 05:37:50).
+type staleWriteConn struct {
+	bufferConn
+}
+
+func (c *staleWriteConn) Write(_ []byte) (int, error) {
+	return 0, fmt.Errorf("set tcp 10.1.0.16:10023: use of closed network connection")
+}
+
+// TestWalkoutPartyMemberSurvivesADeadMemberSocket pins the live incident.
+//
+// A leader who kicks a member whose own socket is already gone must keep his own
+// connection. The party fan-out used to return the MEMBER's write error to the
+// KICKER's handler; game_session_events.go treats such an error as fatal and
+// calls session.conn.Close(), so the kicker was disconnected with
+// 「网络连接中断」 (2026-09-25 06:02:14Z, leader 1111 / game-002957; char 9 at
+// 06:02:33 and char 36 at 06:04:26 were lost the same way).
+//
+// This test deliberately uses only long-standing symbols so the same body can be
+// compiled against the pre-fix tree to prove it is a real regression test.
+func TestWalkoutPartyMemberSurvivesADeadMemberSocket(t *testing.T) {
+	service, leader, sessions := newForcedExitLeaveTestParty(t, 3)
+	victim := sessions[1]
+
+	state := runtimePartyStateSnapshot(leader)
+	victimSlot := byte(0)
+	found := false
+	for _, member := range state.Members {
+		if member.UserID == victim.selectedCharacterID {
+			victimSlot = member.Slot
+			found = true
+		}
+	}
+	if !found {
+		t.Fatalf("victim %d is not in the party roster: %+v", victim.selectedCharacterID, state.Members)
+	}
+
+	// The kicked member's socket is already closed before the kick is processed.
+	victim.conn = &staleWriteConn{}
+	leader.conn.(*bufferConn).write.Reset()
+
+	err := service.handleOnlineWalkoutPartyMember(
+		leader,
+		uint16(dnfenum.CmdPacketWalkoutPartyMember),
+		[]byte{victimSlot},
+	)
+	if err != nil {
+		t.Fatalf("a dead member socket became the kicker's own failure: %v", err)
+	}
+	if leader.conn.(*bufferConn).write.Len() == 0 {
+		t.Fatal("the kicker never received its op14 acknowledgement")
+	}
+}