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/progression/experience.go

@@ -0,0 +1,126 @@
+package progression
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	dnfpvf "longheng.io/server/internal/modules/dnf/pvf"
+)
+
+// ExperienceTable is the immutable cumulative level-threshold projection from
+// the runtime PVF. Keeping the level-entry lookup in the progression domain
+// prevents administrative writes from treating cumulative EXP as per-level
+// EXP.
+type ExperienceTable struct {
+	thresholds []uint32
+}
+
+// LoadExperienceTable reads only character/ExpTable.tbl. Callers that need no
+// SP, TP, or quest data should not make those unrelated PVF files prerequisites.
+func LoadExperienceTable(ctx context.Context, source dnfpvf.Source) (*ExperienceTable, error) {
+	if source == nil {
+		return nil, dnfpvf.ErrSourceRequired
+	}
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	if err := ctx.Err(); err != nil {
+		return nil, err
+	}
+	doc, err := readDocument(source, ExperienceTablePath)
+	if err != nil {
+		return nil, err
+	}
+	thresholds, err := parseExperienceThresholds(doc)
+	if err != nil {
+		return nil, err
+	}
+	return &ExperienceTable{thresholds: thresholds}, nil
+}
+
+// EntryExperience returns the cumulative EXP at the beginning of level. Level
+// one begins at zero; every later level begins at the previous PVF threshold.
+func (t *ExperienceTable) EntryExperience(level int) (uint32, error) {
+	if t == nil || level <= 0 || level-1 > len(t.thresholds) {
+		return 0, fmt.Errorf("%w: entry level=%d thresholds=%d", ErrLevelOutOfRange, level, experienceThresholdCount(t))
+	}
+	if level == 1 {
+		return 0, nil
+	}
+	return t.thresholds[level-2], nil
+}
+
+func experienceThresholdCount(t *ExperienceTable) int {
+	if t == nil {
+		return 0
+	}
+	return len(t.thresholds)
+}
+
+type ExperienceResult struct {
+	PreviousLevel      int
+	PreviousExperience uint32
+	Gain               uint32
+	NewLevel           int
+	NewExperience      uint32
+	LevelsGained       int
+	Saturated          bool
+}
+
+// ThresholdToNext returns the cumulative experience required to advance from
+// level to level+1. The caller supplies the server's proven level cap when
+// applying experience; the threshold-file length is not guessed to be that cap.
+func (t *Tables) ThresholdToNext(level int) (uint32, error) {
+	if t == nil || level <= 0 || level > len(t.experienceThresholds) {
+		return 0, fmt.Errorf("%w: threshold level=%d entries=%d", ErrLevelOutOfRange, level, thresholdCount(t))
+	}
+	return t.experienceThresholds[level-1], nil
+}
+
+// ApplyExperience saturating-adds a current-EXE u32 experience gain and applies
+// cumulative PVF thresholds up to maxLevel. It does not persist or emit an op37.
+func (t *Tables) ApplyExperience(level int, totalExperience, gain uint32, maxLevel int) (ExperienceResult, error) {
+	result := ExperienceResult{
+		PreviousLevel:      level,
+		PreviousExperience: totalExperience,
+		Gain:               gain,
+		NewLevel:           level,
+		NewExperience:      totalExperience,
+	}
+	if t == nil || level <= 0 || maxLevel <= 0 || maxLevel > MaximumCharacterLevel ||
+		level > maxLevel || maxLevel-1 > len(t.experienceThresholds) {
+		return ExperienceResult{}, fmt.Errorf("%w: level=%d max=%d thresholds=%d", ErrLevelOutOfRange, level, maxLevel, thresholdCount(t))
+	}
+	sum := uint64(totalExperience) + uint64(gain)
+	if sum > math.MaxUint32 {
+		sum = math.MaxUint32
+		result.Saturated = true
+	}
+	result.NewExperience = uint32(sum)
+	for result.NewLevel < maxLevel {
+		threshold := t.experienceThresholds[result.NewLevel-1]
+		if result.NewExperience < threshold {
+			break
+		}
+		result.NewLevel++
+	}
+	// Ordinary EXP stops at the cumulative threshold that enters max level;
+	// later accepted EXP is owned by HonorExpert.
+	if result.NewLevel == maxLevel && maxLevel > 1 {
+		entryThreshold := t.experienceThresholds[maxLevel-2]
+		if result.NewExperience > entryThreshold {
+			result.NewExperience = entryThreshold
+			result.Saturated = true
+		}
+	}
+	result.LevelsGained = result.NewLevel - result.PreviousLevel
+	return result, nil
+}
+
+func thresholdCount(t *Tables) int {
+	if t == nil {
+		return 0
+	}
+	return len(t.experienceThresholds)
+}