feat(playable): 首个 Mac 联网内测版 STB-01 soak 工具与发布状态文档

- 新增 script/playable_soak.sh：先做 soak 配置/资源校验，无 --allow-gameplay
  只校验不启动客户端；N(>=10) 次独立正常退出运行 + 墙钟 soak，失败即停止后续
  运行并记 BLOCKED；写本批次 release-manifest.json 后聚合
- run_client_gate.sh：确认的故障代理对所有 suite 启动（共享场景的退出运行也经代理）；
  soak 超时下限只约束 soak 客户端（validate_soak 增加 soak_client 参数）
- 新增本地 127.0.0.1 故障代理、RSS 采样/内存判定、窗口/指标/流程模块及其测试
- forest_mob_render_test 输出 PASS/FAIL 标记，供 rendering_batch_test.sh 识别
- 新增 docs/FIRST-MAC-PLAYABLE-STATUS.md：如实记录 PASS/BLOCKED、已知问题与环境需求
- .gitignore 排除本地场景配置、凭据文件与运行输出

离线回归：rendering_batch_test.sh failures=0，playable_gate_test.sh PASS，
node 夹具测试 PASS。未联网运行，未重建候选包。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ft3kXpNdLbKEfg5uDLfqVF

project/playable_config_gate.gd

@@ -1,14 +1,75 @@
 extends SceneTree
 
+## Parent-runner precondition gate. Runs headless before the packaged client
+## starts; it never opens a network connection or reads credentials.
+##
+## env:
+##   MT_PLAYABLE_VALIDATE_CONFIG  scenario JSON (required)
+##   MT_PLAYABLE_SUITE            playable|full|soak (default playable)
+##   MT_PLAYABLE_ASSETS           asset root used for map/waypoint checks
+##   MT_PLAYABLE_SERVERLIST       test-mode serverlist override (same value is
+##                                handed to the client, so both resolve alike)
+##   MT_PLAYABLE_GATE_OUTPUT      directory for required-cases.json / server-address.json
+## exit: 0 = ready, 2 = configuration/precondition blocked.
+
 const Config = preload("res://testing/playable_config.gd")
+const ServerInfoRes = preload("res://net/serverinfo.gd")
 
 func _init() -> void:
 	var path := OS.get_environment("MT_PLAYABLE_VALIDATE_CONFIG")
+	var suite := OS.get_environment("MT_PLAYABLE_SUITE").strip_edges()
+	if suite.is_empty():
+		suite = "playable"
+	var errors: Array = []
+	if not (suite in Config.SUITES):
+		errors.append("unknown suite: %s" % suite)
 	var result := Config.load_file(path)
-	if not result.ok:
-		for error in result.errors:
+	errors.append_array(result.errors)
+	# A present soak block is validated for every suite: its confirmed fault proxy also
+	# fronts the playable exit runs that share the scenario.
+	if result.ok and (suite == "soak" or result.config.has("soak")):
+		errors.append_array(Config.validate_soak(result.config, suite == "soak").errors)
+	var address := {}
+	var bounds := {}
+	if result.ok:
+		var serverinfo := ServerInfoRes.new()
+		var override := OS.get_environment("MT_PLAYABLE_SERVERLIST").strip_edges()
+		if not override.is_empty():
+			if not serverinfo.load_file(override):
+				errors.append("MT_PLAYABLE_SERVERLIST cannot be loaded")
+		else:
+			serverinfo.load_file("res://serverlist.txt")
+		var resolved := Config.resolve_server(result.config, serverinfo)
+		errors.append_array(resolved.errors)
+		address = resolved.address
+		var assets := OS.get_environment("MT_PLAYABLE_ASSETS").strip_edges()
+		if assets.is_empty():
+			errors.append("MT_PLAYABLE_ASSETS is not set; resource preconditions cannot be checked")
+		else:
+			var resources := Config.check_resources(result.config, assets)
+			errors.append_array(resources.errors)
+			bounds = resources.bounds
+	if not errors.is_empty():
+		for error in errors:
 			printerr("CONFIG: " + String(error))
 		quit(2)
 		return
-	print("PLAYABLE CONFIG: PASS " + path)
+	var out_dir := OS.get_environment("MT_PLAYABLE_GATE_OUTPUT").strip_edges()
+	if not out_dir.is_empty():
+		var cases := Config.required_cases(result.config, suite)
+		if not _write_json(out_dir.path_join("required-cases.json"), {"schema_version": 1, "suite": suite, "cases": cases}) \
+				or not _write_json(out_dir.path_join("server-address.json"), address) \
+				or not _write_json(out_dir.path_join("map-bounds.json"), bounds):
+			printerr("CONFIG: cannot write gate output")
+			quit(2)
+			return
+	print("PLAYABLE CONFIG: PASS")
 	quit(0)
+
+func _write_json(path: String, value: Variant) -> bool:
+	var file := FileAccess.open(path, FileAccess.WRITE)
+	if file == null:
+		return false
+	file.store_string(JSON.stringify(value, "  ") + "\n")
+	file.close()
+	return true