fix(UI): 修正ColorBar默认值和DamageLabel文本显示

refactor(Bullets): 调整BigLaser和Diamond的旋转插值系数
feat(EntityBase): 添加掉落物提示概率控制
style(BossBar): 添加currentValue默认值和label对齐方式
docs(GameRule): 新增掉落物提示概率配置项

scripts/Statemachine/EntityBase.gd

@@ -90,7 +90,8 @@ func _ready():
 		)
 		itemCollected.connect(
 			func(itemType, amount):
-				UIState.itemCollect.add_child(ItemShow.generate(itemType, amount, true))
+				if MathTool.rate(GameRule.tipSpawnRateWhenGetDroppedItem):
+					UIState.itemCollect.add_child(ItemShow.generate(itemType, amount, true))
 		)
 	else:
 		currentFocusedBoss = get_tree().get_nodes_in_group("players")[0]