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/health/health.go

@@ -0,0 +1,148 @@
+package health
+
+import (
+	"net/http"
+	"sort"
+	"sync"
+	"time"
+
+	"longheng.io/server/internal/platform/httpx"
+)
+
+type State string
+
+const (
+	StateUnknown  State = "unknown"
+	StateStarting State = "starting"
+	StateReady    State = "ready"
+	StateStopping State = "stopping"
+	StateStopped  State = "stopped"
+	StateDegraded State = "degraded"
+)
+
+type ComponentStatus struct {
+	Name      string    `json:"name"`
+	State     State     `json:"state"`
+	Detail    string    `json:"detail,omitempty"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+type Snapshot struct {
+	Service     string            `json:"service"`
+	State       State             `json:"state"`
+	Detail      string            `json:"detail,omitempty"`
+	GeneratedAt time.Time         `json:"generated_at"`
+	Startup     []ComponentStatus `json:"startup,omitempty"`
+	Components  []ComponentStatus `json:"components"`
+}
+
+type Service struct {
+	service string
+
+	mu         sync.RWMutex
+	state      State
+	detail     string
+	startup    map[string]ComponentStatus
+	components map[string]ComponentStatus
+}
+
+func New(service string) *Service {
+	return &Service{
+		service:    service,
+		state:      StateStarting,
+		startup:    make(map[string]ComponentStatus),
+		components: make(map[string]ComponentStatus),
+	}
+}
+
+func (s *Service) SetServiceState(state State, detail string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.state = state
+	s.detail = detail
+}
+
+func (s *Service) SetComponent(name string, state State, detail string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.components[name] = ComponentStatus{
+		Name:      name,
+		State:     state,
+		Detail:    detail,
+		UpdatedAt: time.Now().UTC(),
+	}
+}
+
+func (s *Service) SetStartupStep(name string, state State, detail string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.startup[name] = ComponentStatus{
+		Name:      name,
+		State:     state,
+		Detail:    detail,
+		UpdatedAt: time.Now().UTC(),
+	}
+}
+
+func (s *Service) Snapshot() Snapshot {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+
+	startup := make([]ComponentStatus, 0, len(s.startup))
+	for _, step := range s.startup {
+		startup = append(startup, step)
+	}
+	sort.Slice(startup, func(i, j int) bool {
+		return startup[i].Name < startup[j].Name
+	})
+
+	components := make([]ComponentStatus, 0, len(s.components))
+	for _, component := range s.components {
+		components = append(components, component)
+	}
+	sort.Slice(components, func(i, j int) bool {
+		return components[i].Name < components[j].Name
+	})
+
+	return Snapshot{
+		Service:     s.service,
+		State:       s.state,
+		Detail:      s.detail,
+		GeneratedAt: time.Now().UTC(),
+		Startup:     startup,
+		Components:  components,
+	}
+}
+
+func (s *Service) LiveHandler(w http.ResponseWriter, _ *http.Request) {
+	httpx.WriteJSON(w, http.StatusOK, map[string]any{
+		"service": s.service,
+		"alive":   true,
+		"time":    time.Now().UTC(),
+	})
+}
+
+func (s *Service) ReadyHandler(w http.ResponseWriter, _ *http.Request) {
+	snapshot := s.Snapshot()
+	if !snapshotReady(snapshot) {
+		httpx.WriteJSON(w, http.StatusServiceUnavailable, snapshot)
+		return
+	}
+	httpx.WriteJSON(w, http.StatusOK, snapshot)
+}
+
+func (s *Service) DebugHandler(w http.ResponseWriter, _ *http.Request) {
+	httpx.WriteJSON(w, http.StatusOK, s.Snapshot())
+}
+
+func snapshotReady(snapshot Snapshot) bool {
+	if snapshot.State != StateReady {
+		return false
+	}
+	for _, component := range snapshot.Components {
+		if component.State != StateReady {
+			return false
+		}
+	}
+	return true
+}