fix(卡② T7): config_db_cross_validator 引用闭合 5 行补类型标注过 S9 类型闸

trig_rows→Array[Variant]、dd/tr/c/do2→Dictionary[Variant,Variant]（R1 无类型容器归零）。
config_db_test EXIT=0、counter_prefix_fatal EXIT=1（负向）、runtime 零转换错误。

game/core/config_db_cross_validator.gd

@@ -113,7 +113,7 @@ func cross_validate(loaded: Dictionary, push_diag: Callable) -> void:
 	# 声明集 = feats + treasure 各行 triggers 内 kind=counter_add 的 do.counter_id；
 	# 读点 = when fact=counter 的 id、do.value_counter、kind=counter_spend 的 counter_id。
 	var feats_tab = loaded.get("feats")
-	var trig_rows: Array = []
+	var trig_rows: Array[Variant] = []
 	if feats_tab != null:
 		for r in feats_tab.rows:
 			trig_rows.append(r)
@@ -123,21 +123,21 @@ func cross_validate(loaded: Dictionary, push_diag: Callable) -> void:
 	var counter_decls := {}
 	for row in trig_rows:
 		for tr_v in (row.get("triggers", []) as Array):
-			var dd: Dictionary = (tr_v as Dictionary).get("do", {}) as Dictionary
+			var dd: Dictionary[Variant, Variant] = (tr_v as Dictionary).get("do", {}) as Dictionary[Variant, Variant]
 			# 声明集＝任一 do.counter_id 行（counter_add 直写、forgive_seal_miss 经 _apply_counter_hit 写——皆写入行）
 			if dd.has("counter_id"):
 				counter_decls[String(dd.counter_id)] = true
 	for row in trig_rows:
 		var rid := String(row.get("feat_id", row.get("item_id", "")))
 		for tr_v in (row.get("triggers", []) as Array):
-			var tr: Dictionary = tr_v as Dictionary
+			var tr: Dictionary[Variant, Variant] = tr_v as Dictionary[Variant, Variant]
 			for c_v in (tr.get("when", []) as Array):
-				var c: Dictionary = c_v as Dictionary
+				var c: Dictionary[Variant, Variant] = c_v as Dictionary[Variant, Variant]
 				if String(c.get("fact", "")) == "counter" and c.has("id"):
 					var rd := String(c.id)
 					if not counter_decls.has(rd):
 						push_diag.call("error", "counter_dangling_ref", "%s when counter 读点无同名写入行: %s（引用闭合）" % [rid, rd])
-			var do2: Dictionary = tr.get("do", {}) as Dictionary
+			var do2: Dictionary[Variant, Variant] = tr.get("do", {}) as Dictionary[Variant, Variant]
 			if do2.has("value_counter") and not counter_decls.has(String(do2.value_counter)):
 				push_diag.call("error", "counter_dangling_ref", "%s value_counter 读点无同名写入行: %s" % [rid, String(do2.value_counter)])
 			if String(do2.get("kind", "")) == "counter_spend" and do2.has("counter_id") and not counter_decls.has(String(do2.counter_id)):