M1: rörelse, kollision, kamera, scener, tileset, skärmdumpar, CI

- internal/sim: rutbaserad Mover (4 riktningar, riktningsbyte vid rutgräns,
  bildrute-exakt ankomst) och Camera (följer, klampar, centrerar små kartor),
  med tester
- internal/game: scener meny -> bana -> resultat, tangentbord + gamepad,
  tileset och spelaranimation, HUD, skriptläge (-script) för deterministiska
  skärmdumpar och tester
- tools/genart genererar placeholder-grafik (tiles.png, player.png);
  tools/shots tar doc/img/*.png som README och wiki visar
- bana 002-shinjuku (33x21) för kamerascroll; level.List/LoadFile/TrainAt
- .gitea/workflows/release.yaml: vet + test + linux/windows-zippar till
  rullande latest på brasse-linux01-runnern (linux-amd64)
- docs: roadmap M1 klar, tester, plan, README med bilder och styrning

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

resources/data/levels/002-shinjuku.json

@@ -0,0 +1,69 @@
+{
+  "destination": {
+    "en": "Shibuya",
+    "ja": "渋谷",
+    "romaji": "Shibuya",
+    "sv": "Shibuya"
+  },
+  "difficulty": 2,
+  "grid": [
+    "#################################",
+    "#S#..i..#.#...........#.........#",
+    "#.#.#.#.#.#.#######.#.#########.#",
+    "#.#.#.#.#.#.#.....#.#...........#",
+    "#.###.#.#.#.#####.#.###########.#",
+    "#.#...#.#.........#.#.......#...#",
+    "#.#.###.###########.#.#.###.#.###",
+    "#.....#.......#...#.#.#.........#",
+    "#####.#######.#.#.#.#.#########.#",
+    "#.....#.....#...#...#...#.....#.#",
+    "#.#####.###.###########.#.###.#.#",
+    "#.......#...#.....#...#.#...#.#.#",
+    "#.#######.#.#.#.###.#.#.###.#.#.#",
+    "#.#.......#.#.#...#.#.#.....#.#.#",
+    "#.#.###.###.#.###.#.#.#######.#.#",
+    "#...#T#.#..i#.#.#...#.....#...#.#",
+    "#####.#.#.#.#.#.#####.#####.###.#",
+    "#.....#.#.#.#..i....#.......#G..#",
+    "#.#.#.#.#.#########.#########.#.#",
+    "#p..#...#.....................#P#",
+    "#################################"
+  ],
+  "id": "002-shinjuku",
+  "name": {
+    "en": "Shinjuku Station",
+    "ja": "新宿駅",
+    "sv": "Shinjuku station"
+  },
+  "timeLimitSec": 0,
+  "trains": [
+    {
+      "correct": true,
+      "destination": {
+        "en": "Shibuya",
+        "ja": "渋谷",
+        "romaji": "Shibuya"
+      },
+      "line": {
+        "en": "Yamanote Line",
+        "ja": "山手線",
+        "romaji": "Yamanote-sen"
+      },
+      "platform": "P"
+    },
+    {
+      "correct": false,
+      "destination": {
+        "en": "Tokyo",
+        "ja": "東京",
+        "romaji": "Tōkyō"
+      },
+      "line": {
+        "en": "Chūō Line",
+        "ja": "中央線",
+        "romaji": "Chūō-sen"
+      },
+      "platform": "p"
+    }
+  ]
+}