Improve live and random live handling

- Add random live handlers, schemas and persistence for lot/play/continue/gameover/reward flow
- Update live status and schedule generation, including special rotation handling and CN timezone alignment
- Add config support for unlocking all daily special rotation songs and document the option
- Refresh live play, reward, precise score and session logic plus bundled main.db updates

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/handler/live/partylist.go

@@ -14,24 +14,37 @@ import (
 func partyList(ctx *gin.Context) {
 	ss := session.Get(ctx)
 	defer ss.Finalize()
-	userInfo := ss.GetUserInfo()
-
-	pref := usermodel.UserPref{}
-	_, err := ss.UserEng.Table("user_pref").Where("user_id = ?", ss.UserID).Get(&pref)
+	partyListData, err := BuildPartyListData(ss)
 	if ss.CheckErr(err) {
 		return
 	}
 
+	ss.Respond(liveschema.PartyListResp{
+		ResponseData: partyListData,
+		ReleaseInfo:  []any{},
+		StatusCode:   200,
+	})
+}
+
+func BuildPartyListData(ss *session.Session) (liveschema.PartyListData, error) {
+	userInfo := ss.GetUserInfo()
+
+	pref := usermodel.UserPref{}
+	_, err := ss.UserEng.Table("user_pref").Where("user_id = ?", ss.UserID).Get(&pref)
+	if err != nil {
+		return liveschema.PartyListData{}, err
+	}
+
 	supportRows, err := listLiveSupportRows(ss)
-	if ss.CheckErr(err) {
-		return
+	if err != nil {
+		return liveschema.PartyListData{}, err
 	}
 
 	partyList := make([]liveschema.PartyList, 0, len(supportRows))
 	for _, row := range supportRows {
 		party, err := buildLiveSupportParty(ss, row)
-		if ss.CheckErr(err) {
-			return
+		if err != nil {
+			return liveschema.PartyListData{}, err
 		}
 		partyList = append(partyList, party)
 	}
@@ -44,22 +57,18 @@ func partyList(ctx *gin.Context) {
 		}
 		selfParty.AvailableSocialPoint = 10
 		selfParty.CenterUnitInfo, err = mustFindCenterUnitInfo(ss, ss.UserID, pref.UnitOwningUserID)
-		if ss.CheckErr(err) {
-			return
+		if err != nil {
+			return liveschema.PartyListData{}, err
 		}
 		partyList = append(partyList, selfParty)
 	}
 
-	ss.Respond(liveschema.PartyListResp{
-		ResponseData: liveschema.PartyListData{
-			PartyList:         partyList,
-			TrainingEnergy:    userInfo.TrainingEnergy,
-			TrainingEnergyMax: userInfo.TrainingEnergyMax,
-			ServerTimestamp:   time.Now().Unix(),
-		},
-		ReleaseInfo: []any{},
-		StatusCode:  200,
-	})
+	return liveschema.PartyListData{
+		PartyList:         partyList,
+		TrainingEnergy:    userInfo.TrainingEnergy,
+		TrainingEnergyMax: userInfo.TrainingEnergyMax,
+		ServerTimestamp:   time.Now().Unix(),
+	}, nil
 }
 
 func init() {