Migrate all Dart packages to a single wolf_3d_dart package

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_dart/lib/src/input/cli_input.dart

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+import 'package:wolf_3d_dart/wolf_3d_entities.dart';
+import 'package:wolf_3d_dart/src/input/wolf_3d_input.dart';
+
+class CliInput extends Wolf3dInput {
+  // Pending buffer for asynchronous stdin events
+  bool _pForward = false;
+  bool _pBackward = false;
+  bool _pLeft = false;
+  bool _pRight = false;
+  bool _pFire = false;
+  bool _pInteract = false;
+  WeaponType? _pWeapon;
+
+  /// Call this directly from the stdin listener to queue inputs for the next frame
+  void handleKey(List<int> bytes) {
+    String char = String.fromCharCodes(bytes).toLowerCase();
+
+    if (char == 'w') _pForward = true;
+    if (char == 's') _pBackward = true;
+    if (char == 'a') _pLeft = true;
+    if (char == 'd') _pRight = true;
+
+    // --- NEW MAPPINGS ---
+    if (char == 'j') _pFire = true;
+    if (char == ' ') _pInteract = true;
+
+    if (char == '1') _pWeapon = WeaponType.knife;
+    if (char == '2') _pWeapon = WeaponType.pistol;
+    if (char == '3') _pWeapon = WeaponType.machineGun;
+    if (char == '4') _pWeapon = WeaponType.chainGun;
+  }
+
+  @override
+  void update() {
+    // 1. Move pending inputs to the active state
+    isMovingForward = _pForward;
+    isMovingBackward = _pBackward;
+    isTurningLeft = _pLeft;
+    isTurningRight = _pRight;
+    isFiring = _pFire;
+    isInteracting = _pInteract;
+    requestedWeapon = _pWeapon;
+
+    // 2. Wipe the pending slate clean for the next frame
+    _pForward = _pBackward = _pLeft = _pRight = _pFire = _pInteract = false;
+    _pWeapon = null;
+  }
+}

packages/wolf_3d_dart/lib/src/input/wolf_3d_input.dart

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+import 'package:wolf_3d_dart/wolf_3d_engine.dart';
+import 'package:wolf_3d_dart/wolf_3d_entities.dart';
+
+abstract class Wolf3dInput {
+  bool isMovingForward = false;
+  bool isMovingBackward = false;
+  bool isTurningLeft = false;
+  bool isTurningRight = false;
+  bool isInteracting = false;
+  bool isFiring = false;
+  WeaponType? requestedWeapon;
+
+  /// Called once per frame by the game loop to refresh the state.
+  void update();
+
+  /// Exports the current state as a clean DTO for the engine.
+  /// Subclasses do not need to override this.
+  EngineInput get currentInput => EngineInput(
+    isMovingForward: isMovingForward,
+    isMovingBackward: isMovingBackward,
+    isTurningLeft: isTurningLeft,
+    isTurningRight: isTurningRight,
+    isFiring: isFiring,
+    isInteracting: isInteracting,
+    requestedWeapon: requestedWeapon,
+  );
+}