feat: ID 映射支持叠加单独导出的数据包，并纳入 event 表

D:/A031OptDump/Root 是比 G:\Package 更新的一层增补（曲目到 12024、宴曲
111537/111765/112002），原来的 --package 只认整合包内的 A??? 目录，套不到它。

- 新增可重复的 --data-root，把一个目录直接当数据根，按传参顺序追加、后者覆盖
  同 ID 行；--package 与 --data-root 可混用。
- 新增 events.json（eventId → 活动名 / alwaysOpen / infoType / disableArea）。
  本地 event 表没有日期窗口，开没开由服务器 GetGameEventApi 的
  GameEvent{startDate,endDate} 决定，README 里写明了这一点，免得误用它判状态。
- 合并两层后：music 1367→1378、map 168→169、title 3000→3001、event 824。
  11820 在两层数据包里都不存在，结论不变。
- lockType 分布按合并后数据更正为 Unlock 1347 / Lock 18 / Challenge 5 /
  Transmission 2 / KaleidScope 6，顺带说明大多数歌 lockType==Unlock、
  本来就可玩，不查 itemKind 5。

data/id_mapping/music.json

@@ -18963,13 +18963,13 @@
     "genreNameName": "POPSアニメ",
     "AddVersion": 21,
     "AddVersionName": "BUDDiES",
-    "eventName": 1,
-    "eventNameName": "無期限常時解放",
+    "eventName": 0,
+    "eventNameName": "解放なし",
     "disable": false,
     "lockType": 0,
     "subLockType": 1,
     "longMusic": 0,
-    "version": 24006
+    "version": 24003
   },
   {
     "id": 11640,
@@ -22252,6 +22252,142 @@
     "longMusic": 0,
     "version": 25007
   },
+  {
+    "id": 11997,
+    "name": "キスキツネ",
+    "artistName": 781,
+    "artistNameName": "HIMEHINA",
+    "genreName": 101,
+    "genreNameName": "POPSアニメ",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261002021,
+    "eventNameName": "261002_02_1：ヒメヒナちほー2 3曲追加《キスキツネ、WWW、うたかたよいかないで》",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 1,
+    "longMusic": 0,
+    "version": 26506
+  },
+  {
+    "id": 11998,
+    "name": "WWW",
+    "artistName": 781,
+    "artistNameName": "HIMEHINA",
+    "genreName": 101,
+    "genreNameName": "POPSアニメ",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261002021,
+    "eventNameName": "261002_02_1：ヒメヒナちほー2 3曲追加《キスキツネ、WWW、うたかたよいかないで》",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 1,
+    "longMusic": 0,
+    "version": 26506
+  },
+  {
+    "id": 11999,
+    "name": "うたかたよいかないで",
+    "artistName": 781,
+    "artistNameName": "HIMEHINA",
+    "genreName": 101,
+    "genreNameName": "POPSアニメ",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261002021,
+    "eventNameName": "261002_02_1：ヒメヒナちほー2 3曲追加《キスキツネ、WWW、うたかたよいかないで》",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 1,
+    "longMusic": 0,
+    "version": 26506
+  },
+  {
+    "id": 12000,
+    "name": "Intergalactic Bound",
+    "artistName": 1127,
+    "artistNameName": "Yunosuke / CircusP",
+    "genreName": 102,
+    "genreNameName": "niconicoボーカロイド",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261016021,
+    "eventNameName": "261016_02_1：niconico2曲、バラエティ1曲追加《Intergalactic Bound、LEMON MELON COOKIE、3rd Avenue》",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 1,
+    "longMusic": 0,
+    "version": 26507
+  },
+  {
+    "id": 12001,
+    "name": "LEMON MELON COOKIE",
+    "artistName": 1128,
+    "artistNameName": "TAK",
+    "genreName": 102,
+    "genreNameName": "niconicoボーカロイド",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261016021,
+    "eventNameName": "261016_02_1：niconico2曲、バラエティ1曲追加《Intergalactic Bound、LEMON MELON COOKIE、3rd Avenue》",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 0,
+    "longMusic": 0,
+    "version": 26507
+  },
+  {
+    "id": 12002,
+    "name": "3rd Avenue",
+    "artistName": 1138,
+    "artistNameName": "Sound Souler",
+    "genreName": 104,
+    "genreNameName": "ゲームバラエティ",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261016021,
+    "eventNameName": "261016_02_1：niconico2曲、バラエティ1曲追加《Intergalactic Bound、LEMON MELON COOKIE、3rd Avenue》",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 1,
+    "longMusic": 0,
+    "version": 26507
+  },
+  {
+    "id": 12019,
+    "name": "Cryogenic",
+    "artistName": 1148,
+    "artistNameName": "Camellia ft. Petra Gurin「In Falsus」",
+    "genreName": 104,
+    "genreNameName": "ゲームバラエティ",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261016022,
+    "eventNameName": "261016_02_2：バラエティ1曲追加《Cryogenic》",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 1,
+    "longMusic": 0,
+    "version": 26507
+  },
+  {
+    "id": 12024,
+    "name": "OV3RCLOCK",
+    "artistName": 1152,
+    "artistNameName": "Alicemetix",
+    "genreName": 105,
+    "genreNameName": "maimai",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261002024,
+    "eventNameName": "261002_02_4：伝導楽曲 1曲(Lock)",
+    "disable": false,
+    "lockType": 3,
+    "subLockType": 1,
+    "longMusic": 0,
+    "version": 26506
+  },
   {
     "id": 100018,
     "name": "[協]Love You",
@@ -22949,6 +23085,23 @@
     "longMusic": 0,
     "version": 24015
   },
+  {
+    "id": 111537,
+    "name": "[即]Straight into the lights",
+    "artistName": 890,
+    "artistNameName": "Cosmograph",
+    "genreName": 107,
+    "genreNameName": "宴会場",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261016023,
+    "eventNameName": "261016_02_3：宴譜面追加3",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 0,
+    "longMusic": 0,
+    "version": 26508
+  },
   {
     "id": 111557,
     "name": "[蛸]不機嫌なスリーカード",
@@ -23051,6 +23204,23 @@
     "longMusic": 0,
     "version": 25007
   },
+  {
+    "id": 111765,
+    "name": "[音]愛包ダンスホール",
+    "artistName": 781,
+    "artistNameName": "HIMEHINA",
+    "genreName": 107,
+    "genreNameName": "宴会場",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261002022,
+    "eventNameName": "261002_02_2：宴譜面追加4",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 0,
+    "longMusic": 0,
+    "version": 26507
+  },
   {
     "id": 111772,
     "name": "[宴]人マニア",
@@ -23102,6 +23272,23 @@
     "longMusic": 0,
     "version": 25502
   },
+  {
+    "id": 112002,
+    "name": "[覚]3rd Avenue",
+    "artistName": 1138,
+    "artistNameName": "Sound Souler",
+    "genreName": 107,
+    "genreNameName": "宴会場",
+    "AddVersion": 26,
+    "AddVersionName": "CiRCLEPLUS",
+    "eventName": 261016023,
+    "eventNameName": "261016_02_3：宴譜面追加3",
+    "disable": false,
+    "lockType": 0,
+    "subLockType": 0,
+    "longMusic": 0,
+    "version": 26508
+  },
   {
     "id": 120227,
     "name": "[r]Garakuta Doll Play",