gmp(M02): add 3.3.5 input profile

Work-Package: M02-GMP-INPUT-PROFILE-335-001
Agent: sindo-main-codex
Tests: player input/movement/capability/terrain/camera/presentation, coordinate/streaming, docs/coordination and renderer dry-run passed
Fidelity: build-12340 binding hashes and selected defaults pinned; TrinityCore turn rate and WoWee mouse routing are compatibility references with explicit limits

src/domain/input/move_intent.gd

@@ -21,10 +21,16 @@ var is_sprint_requested: bool:
 	get:
 		return _is_sprint_requested
 
+## Signed keyboard turn request: left is negative and right is positive.
+var turn_axis: float:
+	get:
+		return _turn_axis
+
 var _forward_axis: float
 var _strafe_axis: float
 var _vertical_axis: float
 var _is_sprint_requested: bool
+var _turn_axis: float
 
 
 ## Creates one frame's movement request without retaining mutable input state.
@@ -32,12 +38,14 @@ func _init(
 		forward_axis_value: float = 0.0,
 		strafe_axis_value: float = 0.0,
 		vertical_axis_value: float = 0.0,
-		sprint_requested: bool = false
+		sprint_requested: bool = false,
+		turn_axis_value: float = 0.0
 ) -> void:
 	_forward_axis = clampf(forward_axis_value, -1.0, 1.0)
 	_strafe_axis = clampf(strafe_axis_value, -1.0, 1.0)
 	_vertical_axis = clampf(vertical_axis_value, -1.0, 1.0)
 	_is_sprint_requested = sprint_requested
+	_turn_axis = clampf(turn_axis_value, -1.0, 1.0)
 
 
 ## Returns true when the intent requests planar or vertical translation.