fix(client): address PR review — input bug, bounds checks, fixture tests

- Fix input_mapper double-check bug (redundant InputEventKey + pressed filter)
- Add bounds checking for position arrays in entity_renderer and game_state
- Make test snapshot deterministic (incrementing counter, not wall clock)
- Fix tween overlap in monologue_display (cancel active tween before new one)
- Extract TILE_SIZE constant from magic number 32
- Add 5 D-030 Layer 1 fixture tests for snapshot parsing (7/7 total passing)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

client/scripts/autoloads/game_state.gd

@@ -13,7 +13,10 @@ func apply_snapshot(snapshot: Dictionary) -> void:
 	# Parse player data
 	if snapshot.has("player") and snapshot.player.has("position"):
 		var pos = snapshot.player.position
-		player_position = Vector2(pos[0], pos[1])
+		if pos is Array and pos.size() >= 2:
+			player_position = Vector2(pos[0], pos[1])
+		else:
+			push_warning("GameState: malformed player position in snapshot")
 
 	# Parse entities
 	if snapshot.has("entities"):

client/scripts/autoloads/input_mapper.gd

@@ -9,40 +9,26 @@ enum Action {
 var input_queue: Array[Dictionary] = []
 
 func _unhandled_input(event: InputEvent) -> void:
-	# Only process key press events (not releases or repeats)
-	if not event is InputEventKey:
-		return
-	if not event.pressed or event.echo:
-		return
-
 	var action: Action = -1
-	var action_name: String = ""
 
 	# Map input actions to semantic Action enum
+	# is_action_pressed handles press detection for all input types (key, gamepad, etc.)
 	if event.is_action_pressed("move_north"):
 		action = Action.MOVE_NORTH
-		action_name = "move_north"
 	elif event.is_action_pressed("move_south"):
 		action = Action.MOVE_SOUTH
-		action_name = "move_south"
 	elif event.is_action_pressed("move_east"):
 		action = Action.MOVE_EAST
-		action_name = "move_east"
 	elif event.is_action_pressed("move_west"):
 		action = Action.MOVE_WEST
-		action_name = "move_west"
 	elif event.is_action_pressed("interact"):
 		action = Action.INTERACT
-		action_name = "interact"
 	elif event.is_action_pressed("perception_mode"):
 		action = Action.USE_PERCEPTION_MODE
-		action_name = "perception_mode"
 	elif event.is_action_pressed("open_menu"):
 		action = Action.OPEN_MENU
-		action_name = "open_menu"
 	elif event.is_action_pressed("pause"):
 		action = Action.PAUSE
-		action_name = "pause"
 
 	# Queue the action if valid
 	if action != -1:

client/scripts/autoloads/sim_bridge.gd

@@ -5,6 +5,7 @@ enum ConnectionState { DISCONNECTED, CONNECTING, CONNECTED, ERROR }
 
 var state: ConnectionState = ConnectionState.DISCONNECTED
 var test_mode: bool = true  # Enable test mode for development without Rust server
+var _test_tick: int = 0
 
 # Signals
 signal connection_state_changed(old_state: ConnectionState, new_state: ConnectionState)
@@ -54,10 +55,11 @@ func poll_snapshot() -> Variant:
 	# TODO: Actual polling logic when IPC/MessagePack is implemented
 	return null
 
-# Hardcoded test snapshot for development
+# Hardcoded test snapshot for development (deterministic per D-010 principle 4)
 func _test_snapshot() -> Dictionary:
+	_test_tick += 1
 	return {
-		"tick": Time.get_ticks_msec() / 100,  # Increment over time for testing
+		"tick": _test_tick,
 		"player": {
 			"position": [10, 10],
 			"health": 100

client/scripts/rendering/entity_renderer.gd

@@ -3,6 +3,8 @@ extends Node2D
 # Entity renderer — manages entity sprites under the Entities node
 # Creates/updates/removes Sprite2D children based on entity data
 
+const TILE_SIZE: int = 32
+
 var entity_nodes: Dictionary = {}  # id -> Node2D mapping
 
 func _ready() -> void:
@@ -63,7 +65,10 @@ func _update_entity_node(entity_id: int, entity_data: Dictionary) -> void:
 	# Update position
 	if entity_data.has("position"):
 		var pos = entity_data.position
-		entity_node.position = Vector2(pos[0] * 32, pos[1] * 32)  # 32px grid
+		if pos is Array and pos.size() >= 2:
+			entity_node.position = Vector2(pos[0] * TILE_SIZE, pos[1] * TILE_SIZE)
+		else:
+			push_warning("EntityRenderer: malformed position for entity %s" % entity_id)
 
 # Remove an entity node
 func _remove_entity_node(entity_id: int) -> void: