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/game_wire_concurrency_test.go

@@ -0,0 +1,130 @@
+package dnfbridge
+
+import (
+	"encoding/binary"
+	"fmt"
+	"sync"
+	"sync/atomic"
+	"testing"
+
+	dnfproto "longheng.io/server/internal/modules/dnf/protocol"
+)
+
+func TestConcurrentGameTransportSendsPreserveWireSequence(t *testing.T) {
+	const sendCount = 128
+
+	conn := &bufferConn{}
+	service := &Service{}
+	session := &gameSession{conn: conn, connID: "transport-concurrency"}
+
+	runConcurrentGameSends(t, sendCount, func(index int) error {
+		return service.sendGame(session, 1, uint16(300+index), []byte{byte(index)})
+	})
+
+	stream := conn.write.Bytes()
+	for want := uint32(0); want < sendCount; want++ {
+		if len(stream) < dnfproto.MinTCPFrameSize {
+			t.Fatalf("transport frame %d is missing: remaining=%d", want, len(stream))
+		}
+		frameLength := int(binary.LittleEndian.Uint16(stream[2:4]))
+		if frameLength > len(stream) {
+			t.Fatalf("transport frame %d length=%d remaining=%d", want, frameLength, len(stream))
+		}
+		records, err := dnfproto.ParseLatestGameTCPRecords(stream[:frameLength])
+		if err != nil {
+			t.Fatalf("parse transport frame %d: %v", want, err)
+		}
+		if len(records) != 1 {
+			t.Fatalf("transport frame %d records=%d want=1", want, len(records))
+		}
+		if got := records[0].TransportHeader.Sequence; got != want {
+			t.Fatalf("transport wire sequence=%d want=%d", got, want)
+		}
+		stream = stream[frameLength:]
+	}
+	if len(stream) != 0 {
+		t.Fatalf("transport stream has %d trailing bytes", len(stream))
+	}
+	if got := session.sequence; got != sendCount {
+		t.Fatalf("transport session sequence=%d want=%d", got, sendCount)
+	}
+}
+
+func TestConcurrentGameUpperSendsPreserveWireSequence(t *testing.T) {
+	const sendCount = 128
+
+	conn := &bufferConn{}
+	service := &Service{options: options{
+		gameUpperHeader:    gameUpperHeaderChannel13,
+		gameUpperBodyCodec: gameUpperBodyCodecPlain,
+	}}
+	session := &gameSession{conn: conn, connID: "upper-concurrency"}
+
+	runConcurrentGameSends(t, sendCount, func(index int) error {
+		return service.sendGameUpperRawClassNoCodec(
+			session,
+			uint16(300+index),
+			[]byte{byte(index)},
+			dnfproto.DefaultChannelClassification,
+		)
+	})
+
+	stream := conn.write.Bytes()
+	for want := uint16(0); want < sendCount; want++ {
+		packet, rest := splitGameServerUpperPacket(t, stream)
+		if got := packet.Header.Seq; got != want {
+			t.Fatalf("upper wire sequence=%d want=%d", got, want)
+		}
+		stream = rest
+	}
+	if len(stream) != 0 {
+		t.Fatalf("upper stream has %d trailing bytes", len(stream))
+	}
+	if got := session.upperSeq; got != sendCount {
+		t.Fatalf("upper session sequence=%d want=%d", got, sendCount)
+	}
+}
+
+func TestGamePacketLogSequenceIsAtomic(t *testing.T) {
+	const logCount = 256
+
+	service := &Service{}
+	session := &gameSession{connID: "packet-log-concurrency"}
+
+	runConcurrentGameSends(t, logCount, func(index int) error {
+		service.logGamePacket(session, "SEND", "concurrency-test", []byte{byte(index)})
+		return nil
+	})
+
+	if got := atomic.LoadUint64(&session.packetSeq); got != logCount {
+		t.Fatalf("packet log sequence=%d want=%d", got, logCount)
+	}
+}
+
+func runConcurrentGameSends(t *testing.T, count int, send func(index int) error) {
+	t.Helper()
+
+	start := make(chan struct{})
+	errors := make(chan error, count)
+	var group sync.WaitGroup
+	group.Add(count)
+	for index := 0; index < count; index++ {
+		index := index
+		go func() {
+			defer group.Done()
+			<-start
+			if err := send(index); err != nil {
+				errors <- fmt.Errorf("send %d: %w", index, err)
+			}
+		}()
+	}
+	close(start)
+	group.Wait()
+	close(errors)
+	for err := range errors {
+		t.Error(err)
+	}
+	if t.Failed() {
+		t.FailNow()
+	}
+}