feat(chv): 架构/可维护性/前端只读侧推进——生产实验分离、配置片段化、VM 只读展示

架构：WarmPool 从 cloud/chv/pool.py 移到 experimental_pool.py，
生产残留清理彻底分文件到 cloud/chv/orphans.py（facade 直接读
registry 文件清理，不构造池、不碰 prewarm/acquire/release）；
cloud/chv 与 cloud/sandbox 不再导出 WarmPool，旧路径一律
ImportError（CHV 未合并、无生产用户，兼容保留已无保留理由）；
worker 改走 orphans facade，不再持有 _warm_pool；#215 对齐从
接口形状推进到 REPLACEMENT_POINTS 替换清单（R1/R2 可机械替换、
R3 永不替换，#215 模块当前不存在由测试钉住）。

可维护性：build_chv_config 拆成 base/ssh/network/quota/disk/
timeout 六片段（组装只做 dict 合并，键冲突即报错；38 字段集
与取值不变，单项非法报错文案逐字一致）；ADR-12 模块职责图
与禁 import 清单（AST 钉住）；cloud/chv/ 公开 API 全量类型
标注、无 Any 逃逸，并修正三处旧标注错误；死代码扫一遍
（删实验池已无调用的 _quarantine 委托与未用 _LOGGER）。

前端（只读侧，不做控制按钮）：chv.ts 新增纯逻辑谓词与文案
（执行器精确匹配、附件守卫、VM 状态文案、列表徽标）；列表
行新增 VM 已报告死亡徽标；详情对全部 CHV 任务显示 VM 行
（已报告死亡/未报告死亡，不猜 live）；WorkersSection 与成本
卡沿用已有数据，不新开池管理/成本页；服务端未新增第二个
生命周期字段（持久化事实只有三项，chv_vm_dead 已是完整派生），
只把派生抽成 _chv_vm_dead_from_row 并补 goal 回落形态测试。

cloud/tests/test_chv_optimize.py

@@ -23,14 +23,15 @@ from pathlib import Path
 try:
     from cloud.chv import ChvFailure
     from cloud.chv import CloudHypervisorExecutor
-    from cloud.chv import WarmPool
+    from cloud.chv import reconcile_orphans_for_executor
+    from cloud.chv.experimental_pool import WarmPool
     from cloud.chv.api_client import _unix_socket_api as _chv_api
     from cloud.chv.config import _parse_memory_bytes as _chv_mem
     from cloud.sandbox import ChvFailure as _sb_failure
     from cloud.sandbox import CloudHypervisorExecutor as _sb_exec
     from cloud.sandbox import DockerExecutor
+    from cloud.sandbox import reconcile_orphans_for_executor as _sb_reconcile
     from cloud.sandbox import LocalExecutor
-    from cloud.sandbox import WarmPool as _sb_pool
     from cloud.sandbox import _call_runner_with_timeout
     from cloud.sandbox import _parse_memory_bytes as _sb_mem
     from cloud.sandbox import _unix_socket_api as _sb_api
@@ -38,14 +39,15 @@ except ImportError:  # discover -s cloud/tests 时把项目根目录补进 sys.p
     sys.path.insert(0, str(Path(__file__).resolve().parents[2]))
     from cloud.chv import ChvFailure
     from cloud.chv import CloudHypervisorExecutor
-    from cloud.chv import WarmPool
+    from cloud.chv import reconcile_orphans_for_executor
+    from cloud.chv.experimental_pool import WarmPool
     from cloud.chv.api_client import _unix_socket_api as _chv_api
     from cloud.chv.config import _parse_memory_bytes as _chv_mem
     from cloud.sandbox import ChvFailure as _sb_failure
     from cloud.sandbox import CloudHypervisorExecutor as _sb_exec
     from cloud.sandbox import DockerExecutor
+    from cloud.sandbox import reconcile_orphans_for_executor as _sb_reconcile
     from cloud.sandbox import LocalExecutor
-    from cloud.sandbox import WarmPool as _sb_pool
     from cloud.sandbox import _call_runner_with_timeout
     from cloud.sandbox import _parse_memory_bytes as _sb_mem
     from cloud.sandbox import _unix_socket_api as _sb_api
@@ -168,17 +170,27 @@ class ChvOptCase(unittest.TestCase):
 class SplitTest(unittest.TestCase):
     def test_new_and_old_import_paths_are_same_objects(self):
         self.assertIs(CloudHypervisorExecutor, _sb_exec)
-        self.assertIs(WarmPool, _sb_pool)
         self.assertIs(ChvFailure, _sb_failure)
         self.assertIs(_chv_mem, _sb_mem)
         self.assertIs(_chv_api, _sb_api)
+        self.assertIs(reconcile_orphans_for_executor, _sb_reconcile)
 
     def test_classes_live_in_chv_modules(self):
         self.assertEqual(CloudHypervisorExecutor.__module__,
                          "cloud.chv.executor")
-        self.assertEqual(WarmPool.__module__, "cloud.chv.pool")
+        self.assertEqual(WarmPool.__module__,
+                         "cloud.chv.experimental_pool")
         self.assertEqual(ChvFailure.__module__, "cloud.chv.errors")
 
+    def test_old_warm_pool_import_paths_are_gone(self):
+        # 本轨破环性清理：旧路径一律 ImportError，实验路径可用。
+        with self.assertRaises(ImportError):
+            from cloud.chv import WarmPool  # noqa: F401
+        with self.assertRaises(ImportError):
+            from cloud.sandbox import WarmPool  # noqa: F401
+        with self.assertRaises(ImportError):
+            import cloud.chv.pool  # noqa: F401
+
 
 # -- 去重复：goal 解析与 host 命令 ------------------------------------------
 class SharedGoalTest(unittest.TestCase):