rename gauntlet→candy_survival + rewrite Candy Survival per boss design

- Rename enum GAUNTLET→CANDY_SURVIVAL, all gauntlet_*→candy_survival_*
- Rename files: gauntlet_manager→candy_survival_manager, candy_cannon→candy_survival_npc, gauntlet.tscn→candy_survival.tscn
- Rewrite candy_survival_manager.gd: blueprints, candy stack, Mekton delivery, Sugar Rush, knock/ghost charges, sticky-as-wall
- Update player_movement_manager.gd: smack→knock system, ghost integration
- All Candy Survival issues (#54-57, #65-70) retitled per boss design
- Shared managers (goals_cycle, goal, player_race, playerboard, turn) untouched

scripts/bot_strategic_planner.gd

@@ -8,38 +8,38 @@ class_name BotStrategicPlanner
 
 var actor: Node3D
 var enhanced_gridmap: Node
-# Optional explicit gauntlet_manager binding (set by tests to avoid scene-tree
-# traversal collisions; production code uses _get_gauntlet_manager() instead).
-var gauntlet_manager_override: Node = null
+# Optional explicit candy_survival_manager binding (set by tests to avoid scene-tree
+# traversal collisions; production code uses _get_candy_survival_manager() instead).
+var candy_survival_manager_override: Node = null
 
 # Tile type constants
 const GOAL_TILES = [7, 8, 9, 10] # Heart, Diamond, Star, Coin
 const HOLO_TILES = [11, 12, 13, 14] # Power-up holo tiles
 
-# Gauntlet overlay layer (v2 ground-growth model — sticky/telegraph on layer 2).
+# Candy Survival overlay layer (v2 ground-growth model — sticky/telegraph on layer 2).
 # Bots must avoid these cells or use Ghost mode to cross.
-const GAUNTLET_OVERLAY_LAYER: int = 2
+const CANDY_SURVIVAL_OVERLAY_LAYER: int = 2
 const TILE_STICKY: int = 17
 const TILE_TELEGRAPH: int = 18
 
 # =============================================================================
-# Gauntlet mode helpers (#075 — Bot AI: Sticky Avoidance & Pathfinding)
+# Candy Survival mode helpers (#075 — Bot AI: Sticky Avoidance & Pathfinding)
 # =============================================================================
 
-func is_gauntlet_mode() -> bool:
-	return LobbyManager and LobbyManager.is_game_mode(GameMode.Mode.GAUNTLET)
+func is_candy_survival_mode() -> bool:
+	return LobbyManager and LobbyManager.is_game_mode(GameMode.Mode.CANDY_SURVIVAL)
 
-func _get_gauntlet_manager() -> Node:
-	"""Resolve the active GauntletManager.
+func _get_candy_survival_manager() -> Node:
+	"""Resolve the active CandySurvivalManager.
 
 	Order of resolution:
-	  1. Explicit `gauntlet_manager_override` (used by tests).
-	  2. Walk actor's ancestors for any node containing a GauntletManager child
+	  1. Explicit `candy_survival_manager_override` (used by tests).
+	  2. Walk actor's ancestors for any node containing a CandySurvivalManager child
 	     (production path — robust to non-standard scene trees).
-	  3. Fallback: scan /root children for a GauntletManager.
+	  3. Fallback: scan /root children for a CandySurvivalManager.
 	"""
-	if gauntlet_manager_override and is_instance_valid(gauntlet_manager_override):
-		return gauntlet_manager_override
+	if candy_survival_manager_override and is_instance_valid(candy_survival_manager_override):
+		return candy_survival_manager_override
 	var root: Node = null
 	if actor and actor.is_inside_tree():
 		root = actor.get_tree().get_root()
@@ -47,7 +47,7 @@ func _get_gauntlet_manager() -> Node:
 		# nested under Main → Arena → Player).
 		var n: Node = actor.get_parent()
 		while n:
-			var gm = n.get_node_or_null("GauntletManager")
+			var gm = n.get_node_or_null("CandySurvivalManager")
 			if gm:
 				return gm
 			n = n.get_parent()
@@ -56,7 +56,7 @@ func _get_gauntlet_manager() -> Node:
 	# Last-resort scan of root children (helps in unusual scene trees).
 	for child in root.get_children():
 		if child.name.begins_with("Main") or child.name.begins_with("BotTestMain"):
-			var gm2 = child.get_node_or_null("GauntletManager")
+			var gm2 = child.get_node_or_null("CandySurvivalManager")
 			if gm2:
 				return gm2
 	return null
@@ -76,17 +76,17 @@ func _is_overlay_unsafe(pos: Vector2i) -> bool:
 	"""True if the cell carries a sticky or telegraphed overlay on layer 2."""
 	if not enhanced_gridmap:
 		return false
-	var item = enhanced_gridmap.get_cell_item(Vector3i(pos.x, GAUNTLET_OVERLAY_LAYER, pos.y))
+	var item = enhanced_gridmap.get_cell_item(Vector3i(pos.x, CANDY_SURVIVAL_OVERLAY_LAYER, pos.y))
 	return item == TILE_STICKY or item == TILE_TELEGRAPH
 
-func _is_cell_unsafe_in_gauntlet(pos: Vector2i) -> bool:
-	"""Cell is unsafe in Gauntlet if it's sticky/telegraphed — unless the bot's
+func _is_cell_unsafe_in_candy_survival(pos: Vector2i) -> bool:
+	"""Cell is unsafe in Candy Survival if it's sticky/telegraphed — unless the bot's
 	Ghost mode is active (grants sticky bypass)."""
-	if not is_gauntlet_mode():
+	if not is_candy_survival_mode():
 		return false
 	if _is_bot_ghost_active():
 		return false
-	var gm = _get_gauntlet_manager()
+	var gm = _get_candy_survival_manager()
 	if gm and gm.has_method("is_sticky_cell") and gm.is_sticky_cell(pos):
 		return true
 	return _is_overlay_unsafe(pos)
@@ -101,7 +101,7 @@ func _count_unsafe_neighbors(pos: Vector2i) -> int:
 
 func should_activate_ghost_now() -> bool:
 	"""True if the bot is boxed in / about to be sealed and should use Ghost powerup."""
-	if not is_gauntlet_mode():
+	if not is_candy_survival_mode():
 		return false
 	if not _bot_has_ghost_powerup():
 		return false
@@ -613,12 +613,12 @@ func _is_valid_move_target(pos: Vector2i, ignore_players: bool = false) -> bool:
 	if not ignore_players and actor.is_position_occupied(pos):
 		return false
 
-	# Gauntlet mode (#075): reject cells that are sticky or telegraphed —
+	# Candy Survival mode (#075): reject cells that are sticky or telegraphed —
 	# stepping onto them either traps the bot or strands it within 1s.
 	# Safety applies even when ignore_players is true (a sticky cell is unsafe
 	# regardless of whether another player is on it). Ghost-active bots are
 	# exempt via the helper.
-	if _is_cell_unsafe_in_gauntlet(pos):
+	if _is_cell_unsafe_in_candy_survival(pos):
 		return false
 	return true