feat: W2 经济核心+数据管线+灰盒 — Balance Bible v1.0 八表逐值落地，EconomyState/sim 14 门/灰盒主场景/单测（GDScript 待本机引擎验证）

tests/unit/test_runner.gd

@@ -0,0 +1,78 @@
+extends SceneTree
+
+# ============================================================================
+# test_runner.gd —— core 层无头单测入口（GUT 未装前的自包含方案；W3 换 GUT）
+#
+# 运行：godot --headless --path . -s res://tests/unit/test_runner.gd
+# 退出码：0 = 全过；1 = 有失败；2 = 数据/环境错误。
+# 每个用例文件 = tests/unit/cases/*.gd，契约：func run(a) -> void（a = TestAssert）。
+# ============================================================================
+
+class TestAssert extends RefCounted:
+	var failures: Array[String] = []
+	var checks := 0
+
+	func check(cond: bool, msg: String) -> void:
+		checks += 1
+		if not cond:
+			failures.append(msg)
+
+	func eq(got: Variant, want: Variant, msg: String) -> void:
+		checks += 1
+		if got != want:
+			failures.append("%s：got %s want %s" % [msg, str(got), str(want)])
+
+	func near(got: float, want: float, tol: float, msg: String) -> void:
+		checks += 1
+		if absf(float(got) - float(want)) > tol:
+			failures.append("%s：got %.6g want %.6g（tol %g）" % [msg, got, want, tol])
+
+	func true_(cond: bool, msg: String) -> void:
+		check(cond, msg)
+
+	func false_(cond: bool, msg: String) -> void:
+		check(not cond, msg)
+
+
+const CASE_FILES: Array[String] = [
+	"res://tests/unit/cases/test_number_format.gd",
+	"res://tests/unit/cases/test_economy_formulas.gd",
+	"res://tests/unit/cases/test_balance_data.gd",
+	"res://tests/unit/cases/test_economy_state.gd",
+]
+
+
+func _initialize() -> void:
+	var data := BalanceData.load_from_dir("res://data/build/")
+	if not data.load_errors.is_empty():
+		for e in data.load_errors:
+			printerr("test_runner：数据错误：%s" % e)
+		quit(2)
+		return
+	var total_checks := 0
+	var total_fail: Array[String] = []
+	for path in CASE_FILES:
+		var script: Variant = load(path)
+		if script == null:
+			printerr("test_runner：用例缺失 %s" % path)
+			quit(2)
+			return
+		var case_obj: Variant = script.new()
+		if not (case_obj is RefCounted) or not case_obj.has_method("run"):
+			printerr("test_runner：用例契约不符 %s" % path)
+			quit(2)
+			return
+		var a := TestAssert.new()
+		case_obj.run(a, data)
+		total_checks += a.checks
+		for f in a.failures:
+			total_fail.append("%s → %s" % [path.get_file(), f])
+		print("test_runner：%s：%d 检查，%d 失败" % [path.get_file(), a.checks, a.failures.size()])
+	if total_fail.is_empty():
+		print("test_runner：PASS（%d 检查全过）" % total_checks)
+		quit(0)
+		return
+	print("test_runner：FAIL（%d/%d）" % [total_fail.size(), total_checks])
+	for f in total_fail:
+		printerr("  ✗ %s" % f)
+	quit(1)