tester v2: 术语对齐 pytest/JUnit/Robot，补齐 automation 与 not-run

字段改名（每项取舍的理由见新增的 references/concepts.md）：
- 用例 status -> lifecycle, suite -> tag, surface -> driver,
  cleanup -> teardown, skip_unless -> assume；删除 requires
- risk 取值 safe/act/harm -> readonly/mutating/destructive（单调三级，
  与 gate 正交）
- catalog auth_env -> authorize；授权变量统一为
  AUTHORIZE_MUTATING / AUTHORIZE_DESTRUCTIVE

新增用例字段 automation（automated/assisted/manual），默认 automated，
并在 validate 里机器校验：manual 禁用 driver 与 how.run 且必须有
how.steps；assisted 至少一步以 [人工] 开头。select 新增 --automation。

结果词新增 not-run，区分「主动不跑」（skipped：retired/pending/超风险
上限/未授权/assume 不成立）与「没轮到」（失败即停后、被分类前置挡住整组、
需人工而无人值守）。

status_probe 定为分类级前置条件：catalog 顶层为默认，categories[] 同名键
覆盖（缺省继承 / false 关闭 / mapping 整体替换）。select 按分类返回生效值，
并把 probe.url 用 vars 展开（solve Agent 无法自行解析 ${VAR} 的问题），
同批返回 vars 供 how 里的 ${...} 替换。

新增 references/concepts.md：术语表（每词一句唯一定义 + 业界锚点 +
反例）、v1->v2 映射、以及 risk/automation/not-run/status_probe 的设计理由。
其余文档（SKILL/README/schema/levels/run/maintain）与三个脚本（catalog、
generate_cases_csv、generate_run_csv）同步更新。

skills/tester/scripts/generate_cases_csv.py

@@ -21,13 +21,13 @@ FIELDS = (
     "maps_to",
     "title",
     "what",
-    "suite",
+    "tag",
     "risk",
     "gate",
-    "surface",
+    "driver",
+    "automation",
     "session",
-    "status",
-    "requires",
+    "lifecycle",
     "setup",
     "how",
     "expected",
@@ -186,13 +186,13 @@ def export_cases_csv(root: Path, out: Path | None = None) -> Path:
                     "maps_to": case.get("maps_to") or "",
                     "title": case.get("title") or "",
                     "what": one_line(case.get("what")),
-                    "suite": case.get("suite") or "",
+                    "tag": case.get("tag") or "",
                     "risk": case.get("risk") or "",
                     "gate": case.get("gate") or "",
-                    "surface": case.get("surface") or "",
+                    "driver": case.get("driver") or "",
+                    "automation": case.get("automation") or "automated",
                     "session": case.get("session") or "",
-                    "status": case.get("status") or "active",
-                    "requires": one_line(case.get("requires")),
+                    "lifecycle": case.get("lifecycle") or "active",
                     "setup": one_line(case.get("setup")),
                     "how": how_brief(case.get("how")),
                     "expected": one_line(case.get("expected")),