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/managers/camera_context_manager.gd

@@ -12,7 +12,7 @@ var player: Node3D
 @export var z_offset: float = 12.0
 @export var default_y: float = 19.636
 
-var bounds_gauntlet = { "min_x": 0.0, "max_x": 20.0, "min_z": 10.0, "max_z": 32.0 }
+var bounds_candy_survival = { "min_x": 0.0, "max_x": 20.0, "min_z": 10.0, "max_z": 32.0 }
 
 # Bounds Definitions { min_x, max_x, min_z, max_z }
 var bounds_freemode = { "min_x": 3.0, "max_x": 11.0, "min_z": 13.0, "max_z": 22.5 }
@@ -48,8 +48,8 @@ func _calculate_target_position() -> Vector3:
 	# Apply Mode-Specific Clamping
 	var bounds = bounds_freemode # Default
 
-	if mode == GameMode.Mode.GAUNTLET:
-		bounds = bounds_gauntlet
+	if mode == GameMode.Mode.CANDY_SURVIVAL:
+		bounds = bounds_candy_survival
 	elif mode == GameMode.Mode.STOP_N_GO:
 		bounds = bounds_stop_n_go