M9a: stationer i flera våningar med trappor

- level: Point har Z; banor kan ha floors (lika stora rutnät med namn),
  gamla grid-banor läses som en våning; trappor U/D på samma x,y en våning
  upp/ner valideras parvis; Neighbors ger grannar över våningar så att
  Path, lösbarhet, spärregel och Unreachable fungerar; skyltar har z
- sim: att kliva på en trappa flyttar spelaren till andra änden
  (FloorChanges); dimman är per våning och avslöjar trappans andra ände;
  tåg hörs/syns bara på egen våning
- game: bara spelarens våning ritas (följare på andra våningar döljs),
  HUD och minikarta visar våningens namn, trappgrafik i genart och färg på
  minikartan
- bana 004 Tokyo (svårighet 3, tre i sällskapet): start under mark på B1,
  trappa upp till 1F med perronger; generatorn gör våningar med trappor
  som flaskhalsar; ordboken utökad
- testbotar och tools/shots förstår trappor; två våningsbilder
- docs/README/wiki uppdaterade

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

resources/data/levels/004-tokyo.json

@@ -0,0 +1,159 @@
+{
+  "destination": {
+    "en": "Ueno",
+    "ja": "上野",
+    "romaji": "Ueno",
+    "sv": "Ueno"
+  },
+  "difficulty": 3,
+  "fareYen": 200,
+  "floors": [
+    {
+      "grid": [
+        "#################################",
+        "#S..#.......#.............#.....#",
+        "#.#.#.#####.###.#########.#####.#",
+        "#.#.#.#...#...#.#.....#...#...#.#",
+        "#.#.#.#.#.###.#.#.###.#.###.#.#.#",
+        "#.#...#.#...#.#.....#.#.....#...#",
+        "#.#####.#####.#######.#.#########",
+        "#.......#...#.#.....#.#.#.......#",
+        "#.#.#####.#.#.#.###.#.#.#.#####.#",
+        "#.#.#...#.#.#.#.#...#.#...#...#.#",
+        "#.#.#.#.#.#.#.#.#.###.###.#.#.#.#",
+        "#...#.#...#.#...#...#...#.#.#.#.#",
+        "###.#.#####.#######.###.#.#.#.#.#",
+        "#...#.....#.......#...#...#.#...#",
+        "#.#.#####.#.#########.#####.###.#",
+        "#.#.#...#.#.........#...#...#.#.#",
+        "#.###.#.#.#######.#.###.#.###.#.#",
+        "#.#...#...#.....#.#.......#...#.#",
+        "#.#.#########.#.#.#########.###.#",
+        "#.....U.......#.#...............#",
+        "#################################"
+      ],
+      "name": "B1"
+    },
+    {
+      "grid": [
+        "#################################",
+        "#.......#.............#...#.....#",
+        "#.#####.#.#########.#.#.#.#.#.#.#",
+        "#..i..#.#.....#...#.#.#.#.#.#.#.#",
+        "###.#.#.#######.#.#.#.#.#.###.###",
+        "#...#.#.......#.#...#.#.#...#...#",
+        "#.###.#######.#.#####.#.#.#.###.#",
+        "#.........#T#.#.#K..#...#.#...#.#",
+        "#.#######.#.#.#.###.#####.###.#.#",
+        "#...#...#...#.#...#.........#..i#",
+        "#.#.#.#.###.#.###.#.###########.#",
+        "#W#...#...#.#.#...#.......#...#.#",
+        "#########.#.#.#.###.#####.#.#.#.#",
+        "#........i#.#...#.#.#...#...#...#",
+        "#.#######.#######.#.#.#.#########",
+        "#...#.....#.........#.#...#.....#",
+        "###.#.#.###.###########.#.#.###.#",
+        "#...#.#...#.....#.......#.#...#.#",
+        "#G###.###.#####.#.#.#####.###.#G#",
+        "#pG...D.#...........#.........#P#",
+        "#################################"
+      ],
+      "name": "1F"
+    }
+  ],
+  "id": "004-tokyo",
+  "kind": "main",
+  "maxMissedTrains": 2,
+  "name": {
+    "en": "Tokyo Station",
+    "ja": "東京駅",
+    "sv": "Tokyo station"
+  },
+  "order": 4,
+  "party": 3,
+  "rideStops": 4,
+  "shop": [
+    "beanie",
+    "mask_fox",
+    "hiking_boots",
+    "omamori",
+    "conductor_cap"
+  ],
+  "signs": [
+    {
+      "text": {
+        "en": "Tokyo Station, floor 1F. You arrived on the Marunouchi Line underground (B1). Track 4 Yamanote Line for Ueno: south-east. Track 7 Tokaido Line for Shinagawa: south-west.",
+        "ja": "東京駅 1階   地下 丸ノ内線 ↓   4番線 山手線 上野方面 → 南東   7番線 東海道線 品川方面 → 南西",
+        "sv": "Tokyo station, våning 1F. Du kom med Marunouchi-linjen under mark (B1). Spår 4 Yamanote-linjen mot Ueno: sydost. Spår 7 Tokaido-linjen mot Shinagawa: sydväst."
+      },
+      "x": 9,
+      "y": 13,
+      "z": 1
+    },
+    {
+      "text": {
+        "en": "\u003c- Track 7 Tokaido Line (Shinagawa)      Track 4 Yamanote Line (Ueno) -\u003e",
+        "ja": "← 7番線 東海道線 品川方面      4番線 山手線 上野方面 →",
+        "sv": "\u003c- Spår 7 Tokaido-linjen (Shinagawa)      Spår 4 Yamanote-linjen (Ueno) -\u003e"
+      },
+      "x": 3,
+      "y": 3,
+      "z": 1
+    },
+    {
+      "text": {
+        "en": "Track 4 Yamanote Line for Ueno: the gate in the south-east corner. The stairs down lead back to B1.",
+        "ja": "4番線 山手線 上野方面 → 南東口 改札   ↓ 地下",
+        "sv": "Spår 4 Yamanote-linjen mot Ueno: spärren i sydöstra hörnet. Trappan ner leder tillbaka till B1."
+      },
+      "x": 31,
+      "y": 9,
+      "z": 1
+    }
+  ],
+  "ticketRequired": false,
+  "timeLimitSec": 420,
+  "trains": [
+    {
+      "correct": true,
+      "crowded": true,
+      "destination": {
+        "en": "Ueno",
+        "ja": "上野",
+        "romaji": "Ueno"
+      },
+      "line": {
+        "en": "Yamanote Line",
+        "ja": "山手線",
+        "romaji": "Yamanote-sen"
+      },
+      "platform": "P",
+      "schedule": {
+        "dwellSec": 8,
+        "intervalSec": 24,
+        "offsetSec": 5
+      },
+      "track": "4"
+    },
+    {
+      "correct": false,
+      "destination": {
+        "en": "Shinagawa",
+        "ja": "品川",
+        "romaji": "Shinagawa"
+      },
+      "line": {
+        "en": "Tokaido Line",
+        "ja": "東海道線",
+        "romaji": "Tokaido-sen"
+      },
+      "platform": "p",
+      "schedule": {
+        "dwellSec": 8,
+        "intervalSec": 28,
+        "offsetSec": 11
+      },
+      "track": "7"
+    }
+  ]
+}

resources/text/jp-dictionary.json

@@ -539,5 +539,54 @@
     "sv": "Kabukicho",
     "tier": 3,
     "kind": "station"
+  },
+  "東京駅": {
+    "kana": "とうきょうえき",
+    "romaji": "Tōkyō-eki",
+    "en": "Tokyo Station",
+    "sv": "Tokyo station",
+    "tier": 3
+  },
+  "東海道線": {
+    "kana": "とうかいどうせん",
+    "romaji": "Tōkaidō-sen",
+    "en": "Tokaido Line",
+    "sv": "Tokaido-linjen",
+    "tier": 3
+  },
+  "丸ノ内線": {
+    "kana": "まるのうちせん",
+    "romaji": "Marunouchi-sen",
+    "en": "Marunouchi Line",
+    "sv": "Marunouchi-linjen",
+    "tier": 3
+  },
+  "階": {
+    "kana": "かい",
+    "romaji": "kai",
+    "en": "floor",
+    "sv": "våning",
+    "tier": 2
+  },
+  "地下": {
+    "kana": "ちか",
+    "romaji": "chika",
+    "en": "underground",
+    "sv": "under mark",
+    "tier": 2
+  },
+  "上": {
+    "kana": "うえ",
+    "romaji": "ue",
+    "en": "up",
+    "sv": "upp",
+    "tier": 1
+  },
+  "下": {
+    "kana": "した",
+    "romaji": "shita",
+    "en": "down",
+    "sv": "ner",
+    "tier": 1
   }
 }