feat: M3-M7 全模块落地 + 集成接线

- M3 认证/权限/审计/限流 + 全部 REST 接口
- M4 管理面板（MIUIx + 成绩录入/积分榜下钻/大屏控制）
- M5a 大屏页面（六页 + 明细覆盖层 + 缩放适配）
- M6 WebSocket 实时同步中心
- M7 xlsx 导出 + 赛事包 zip + 备份
- 规则包 YAML 导入导出（差异预览）
- 字体 vendor 子集化（4 套 x2 字重）
- 集成：realtime/export/rules 接入 main+httpapi；backup 子命令
- 修复：中间件包装 ResponseWriter 丢失 Hijacker，导致 WS 握手 501

server/internal/rules/convert.go

@@ -0,0 +1,120 @@
+package rules
+
+import "git.yeij.top/AskaEth/Scoreboard/server/internal/domain"
+
+// 本文件是规则包类型与 domain 类型之间的唯一转换入口；
+// 转换只搬字段、不填默认值（默认值统一由 Canonical 负责），避免两处口径打架。
+
+// ToDomain 把模板转成 domain.ScoringProfile；id 由调用方（仓储层）决定。
+func (p Profile) ToDomain(id int64) domain.ScoringProfile {
+	tie := p.TieMode
+	if tie == "" {
+		tie = domain.TieSkip
+	}
+	bonus := p.RecordBonusMode
+	if bonus == "" {
+		bonus = domain.RecordBonusMax
+	}
+	rules := make([]domain.ScoringRule, 0, len(p.Rules))
+	for _, r := range p.Rules {
+		rules = append(rules, domain.ScoringRule{Rank: r.Rank, Points: r.Points})
+	}
+	return domain.ScoringProfile{
+		ID:              id,
+		Code:            p.Code,
+		Name:            p.Name,
+		AwardRanks:      p.AwardRanks,
+		LastPlaceZero:   p.LastPlaceZero,
+		TieMode:         tie,
+		RecordBonusMode: bonus,
+		Rules:           rules,
+	}
+}
+
+// ProfileFromDomain 把 domain 模板转回规则包类型。
+func ProfileFromDomain(p domain.ScoringProfile) Profile {
+	rules := make([]Rule, 0, len(p.Rules))
+	for _, r := range p.Rules {
+		rules = append(rules, Rule{Rank: r.Rank, Points: r.Points})
+	}
+	return Profile{
+		Code:            p.Code,
+		Name:            p.Name,
+		AwardRanks:      p.AwardRanks,
+		LastPlaceZero:   p.LastPlaceZero,
+		TieMode:         p.TieMode,
+		RecordBonusMode: p.RecordBonusMode,
+		Rules:           rules,
+	}
+}
+
+// ToDomain 把通道转成 domain.ScoreChannel；profileID 由调用方按模板编码查出。
+func (c Channel) ToDomain(eventID, profileID int64, sortOrder int) domain.ScoreChannel {
+	return domain.ScoreChannel{
+		EventID:   eventID,
+		Scope:     c.Scope,
+		Basis:     c.Basis,
+		ProfileID: profileID,
+		Aggregate: c.Aggregate,
+		SortOrder: sortOrder,
+	}
+}
+
+// ChannelFromDomain 把 domain 通道转回规则包类型；profileCode 由调用方按模板 ID 查出。
+func ChannelFromDomain(c domain.ScoreChannel, profileCode string) Channel {
+	return Channel{
+		Scope:     c.Scope,
+		Basis:     c.Basis,
+		Profile:   profileCode,
+		Aggregate: c.Aggregate,
+	}
+}
+
+// ProfileIndex 按模板编码建索引，便于通道引用解析。
+func (p *RulePack) ProfileIndex() map[string]Profile {
+	out := make(map[string]Profile, len(p.Profiles))
+	for _, prof := range p.Profiles {
+		out[prof.Code] = prof
+	}
+	return out
+}
+
+// ToStandingsInput 把榜单口径映射成 domain 聚合输入。
+func (s Standings) ToStandingsInput() domain.StandingsInput {
+	return domain.StandingsInput{
+		IndividualToTeamWeight: s.IndividualToTeamWeight,
+		ExcludeTeamEventMedals: !s.MedalCountsTeamEventsEnabled(),
+	}
+}
+
+// ToDomain 把破纪录配置转成 domain.RecordBonusConfig。
+func (r RecordBonus) ToDomain() domain.RecordBonusConfig {
+	mode := r.Mode
+	if mode == "" {
+		mode = domain.RecordBonusMax
+	}
+	levels := make([]domain.RecordLevel, 0, len(r.Levels))
+	for _, lv := range r.Levels {
+		levels = append(levels, domain.RecordLevel{Code: lv.Code, Name: lv.Name, Points: lv.Points})
+	}
+	return domain.RecordBonusConfig{Enabled: r.Enabled, Mode: mode, Levels: levels}
+}
+
+// RecordBonusFromDomain 把 domain 破纪录配置转回规则包类型。
+func RecordBonusFromDomain(c domain.RecordBonusConfig) RecordBonus {
+	levels := make([]RecordLevel, 0, len(c.Levels))
+	for _, lv := range c.Levels {
+		levels = append(levels, RecordLevel{Code: lv.Code, Name: lv.Name, Points: lv.Points})
+	}
+	return RecordBonus{Enabled: c.Enabled, Mode: c.Mode, Levels: levels}
+}
+
+// ToDomain 把人工调整开关转成 domain.ManualAdjustmentConfig。
+func (m ManualAdjustment) ToDomain() domain.ManualAdjustmentConfig {
+	return domain.ManualAdjustmentConfig{Enabled: m.Enabled, ReasonRequired: m.ReasonRequired}
+}
+
+// ManualAdjustmentFromDomain 把 domain 人工调整开关转回规则包类型。
+func ManualAdjustmentFromDomain(c domain.ManualAdjustmentConfig) ManualAdjustment {
+	return ManualAdjustment{Enabled: c.Enabled, ReasonRequired: c.ReasonRequired}
+}