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/platform/httpx/server.go

@@ -0,0 +1,128 @@
+package httpx
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"net"
+	"net/http"
+	"sync"
+	"time"
+)
+
+type Server struct {
+	name   string
+	addr   string
+	logger *slog.Logger
+	mux    *http.ServeMux
+	opts   Timeouts
+
+	mu       sync.Mutex
+	listener net.Listener
+	server   *http.Server
+}
+
+type Timeouts struct {
+	ReadTimeout       time.Duration
+	ReadHeaderTimeout time.Duration
+	WriteTimeout      time.Duration
+	IdleTimeout       time.Duration
+}
+
+func New(name, addr string, logger *slog.Logger, opts Timeouts) *Server {
+	if addr == "" {
+		addr = ":18080"
+	}
+	return &Server{
+		name:   name,
+		addr:   addr,
+		logger: logger,
+		mux:    http.NewServeMux(),
+		opts:   normalizeTimeouts(opts),
+	}
+}
+
+func (s *Server) Name() string {
+	return s.name
+}
+
+func (s *Server) Mux() *http.ServeMux {
+	return s.mux
+}
+
+func (s *Server) Start(_ context.Context) error {
+	s.mu.Lock()
+	if s.listener != nil {
+		s.mu.Unlock()
+		return nil
+	}
+	s.mu.Unlock()
+
+	ln, err := net.Listen("tcp", s.addr)
+	if err != nil {
+		return err
+	}
+
+	s.mu.Lock()
+	s.listener = ln
+	s.server = NewHTTPServer(s.mux, s.opts)
+	server := s.server
+	s.mu.Unlock()
+
+	go func() {
+		err := server.Serve(ln)
+		if err != nil && !errors.Is(err, http.ErrServerClosed) && s.logger != nil {
+			s.logger.Error("admin http serve failed", "error", err)
+		}
+	}()
+
+	if s.logger != nil {
+		s.logger.Info("admin http listening", "addr", ln.Addr().String())
+	}
+	return nil
+}
+
+func NewHTTPServer(handler http.Handler, opts Timeouts) *http.Server {
+	opts = normalizeTimeouts(opts)
+	return &http.Server{
+		Handler:           handler,
+		ReadTimeout:       opts.ReadTimeout,
+		ReadHeaderTimeout: opts.ReadHeaderTimeout,
+		WriteTimeout:      opts.WriteTimeout,
+		IdleTimeout:       opts.IdleTimeout,
+	}
+}
+
+func normalizeTimeouts(opts Timeouts) Timeouts {
+	if opts.ReadTimeout <= 0 {
+		opts.ReadTimeout = 10 * time.Second
+	}
+	if opts.ReadHeaderTimeout <= 0 {
+		opts.ReadHeaderTimeout = 5 * time.Second
+	}
+	if opts.WriteTimeout <= 0 {
+		opts.WriteTimeout = 15 * time.Second
+	}
+	if opts.IdleTimeout <= 0 {
+		opts.IdleTimeout = 60 * time.Second
+	}
+	return opts
+}
+
+func (s *Server) Stop(ctx context.Context) error {
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	s.mu.Lock()
+	server := s.server
+	s.server = nil
+	s.listener = nil
+	s.mu.Unlock()
+	if server == nil {
+		return nil
+	}
+	if s.logger != nil {
+		s.logger.Info("stopping admin http", "addr", s.addr)
+	}
+	return server.Shutdown(ctx)
+}