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/net_world_vis_test.gd

@@ -124,3 +124,38 @@ func _run() -> void:
 	await process_frame
 	_ck(nw.node_for(2) != null, "main back in range -> culled entity rebuilt after its fade")
 	_ck(int(added.get(2, 0)) == 2, "entity 2 rebuilt exactly once on re-entry")
+
+	await _dead_motion(fc, nw)
+
+class AnimView extends Node3D:
+	var states: Array[String] = []
+	func set_anim_state(s: String) -> void:
+		states.append(s)
+
+# MAP-02 / CActorInstance::Die: a model plays NAME_DEAD only (no scene tilt), and
+# __SetMotion rejects every non-dead motion while the actor is dead — the
+# func/moving edge that arrives with the death must not restart WAIT.
+func _dead_motion(fc: FakeClient, nw: Node) -> void:
+	nw.set_model_factory(func(d: Dictionary) -> Node3D:
+		return AnimView.new() if int(d.get("race", 0)) == 2301 else null)
+	var ent := fc.add(6, NEAR_CM + Vector2(300, 0), {"race": 2301, "ch_type": 2, "moving": true})
+	fc.entity_spawned.emit(ent)
+	await process_frame
+	var view := nw.node_for(6) as AnimView
+	_ck(view != null and view.states.back() == "run", "moving tree monster -> run requested")
+	if view == null:
+		return
+	ent["moving"] = false
+	ent["dead"] = true
+	fc.entity_dead.emit(6)
+	await create_tween().tween_interval(0.4).finished
+	await process_frame
+	_ck(view.states.back() == "dead", "death while moving keeps DEAD (reference __SetMotion ignores WAIT when dead): %s" % [view.states])
+	_ck(is_zero_approx(view.rotation.x) and is_zero_approx(view.rotation.z), "model with motions is not tilted on death (rotation.x=%.2f)" % view.rotation.x)
+	var capsule := fc.add(7, NEAR_CM + Vector2(600, 0), {"ch_type": 2})
+	fc.entity_spawned.emit(capsule)
+	var placeholder: Node3D = nw.node_for(7)
+	capsule["dead"] = true
+	fc.entity_dead.emit(7)
+	await create_tween().tween_interval(0.4).finished
+	_ck(placeholder != null and placeholder.rotation.x < -1.0, "placeholder capsule (no motions) still falls over as its only death cue")