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/ui/mob_view.gd

@@ -28,6 +28,7 @@ var anim: Node           # Metin2AnimPlayer
 var _dir := ""
 var _motions := {}       # MOTION_NAME(String) -> 绝对 .msa 路径
 var _state := ""
+var _last_resolution := {}
 var _audio: Node
 var _sound_instances: Array = []
 var _sound_frame := -1
@@ -125,8 +126,10 @@ func set_anim_state(s: String) -> void:
 	if s == _state or anim == null:
 		return
 	_state = s
-	var msa := _motion_for(s)
+	_last_resolution = resolve_motion(s)
+	var msa := String(_last_resolution.path)
 	if msa == "":
+		# 旧客户端 GetMotionKey 失败时 SetLoopMotion/InterceptMotion 直接返回：保留当前动作。
 		return
 	anim.set("loop", s in ["wait", "walk", "run"])
 	anim.set("anim_path", msa)
@@ -136,7 +139,35 @@ func set_anim_state(s: String) -> void:
 # the selected .msa before playback lets the test distinguish a real action
 # from a silent "keep the previous animation" fallback.
 func get_motion_path(state: String) -> String:
-	return _motion_for(state)
+	return String(resolve_motion(state).path)
+
+## requested_state / motion / path / fallback_reason。fallback_reason:
+##   ""                              首选动作名命中
+##   "client_alias:<NAME>"           本客户端的同类动作别名（如 run -> WALK）
+##   "motlist_missing:<file>"        motlist 未列出，按目录里的 <name>.msa 兜底
+##   "reference_keep_current_motion" 资源没有任何候选动作；与旧客户端一致保留当前动作
+func resolve_motion(state: String) -> Dictionary:
+	var names: Array = STATE_MOTIONS.get(state, [])
+	var out := {"requested_state": state, "motion": "", "path": "", "fallback_reason": ""}
+	for mo: String in names:
+		if _motions.has(mo):
+			out.motion = mo
+			out.path = String(_motions[mo])
+			if mo != String(names[0]):
+				out.fallback_reason = "client_alias:" + mo
+			return out
+	for mo: String in names:
+		var p := _dir.path_join(mo.to_lower() + ".msa")
+		if FileAccess.file_exists(p):
+			out.motion = mo
+			out.path = p
+			out.fallback_reason = "motlist_missing:" + p.get_file()
+			return out
+	out.fallback_reason = "reference_keep_current_motion"
+	return out
+
+func last_motion_resolution() -> Dictionary:
+	return _last_resolution.duplicate()
 
 func _process(_delta: float) -> void:
 	if _audio == null or anim == null or _sound_instances.is_empty() or not anim.has_method("get_time") \
@@ -194,17 +225,6 @@ func _folder_candidates(proto: Node, race: int) -> Array:
 				out.append(c)
 	return out
 
-func _motion_for(state: String) -> String:
-	for mo: String in STATE_MOTIONS.get(state, []):
-		if _motions.has(mo):
-			return _motions[mo]
-	# 兜底：目录里有 <mo>.msa 直接用
-	for mo: String in STATE_MOTIONS.get(state, []):
-		var p := _dir.path_join(mo.to_lower() + ".msa")
-		if FileAccess.file_exists(p):
-			return p
-	return _motions.get("WAIT", "")
-
 func _load_motlist() -> void:
 	var ml := _dir.path_join("motlist.txt")
 	if not FileAccess.file_exists(ml):