docs+test: 发布包对拍计划、pytest 双端 API 对拍与 run_elevator_parity 脚本

- docs/elevator-api-parity: 计划/报告模板/示例
- tools/elevator_api_parity: 端点目录、fixtures、对拍 client/compare、报告生成
- scripts/run_elevator_parity: JDK8 构建 + 单测/对拍（无服务时跳过对拍用例）

Made-with: Cursor

Former-commit-id: 3d54a40e1a7ae0b1724261d4f18910a6f415f853

maven-cw-elevator-application/tools/elevator_api_parity/parity/health.py

@@ -0,0 +1,29 @@
+"""Probes that work for both Spring Boot 1.5/2.x with common actuator settings."""
+
+import requests
+
+_CANDIDATES = (
+    "/actuator/health",
+    "/actuator/health/",  # noqa: PIE
+    "/health",
+    "/application/health",  # very old
+)
+
+
+def probe_healthy(base_url: str, session: requests.Session, timeout: float = 2.0) -> tuple[str, bool, int]:
+    base = base_url.rstrip("/")
+    last_status = 0
+    for path in _CANDIDATES:
+        try:
+            r = session.get(base + path, timeout=timeout, allow_redirects=True)
+            last_status = r.status_code
+            if r.status_code == 200 and _body_up(r.text):
+                return path, True, r.status_code
+        except requests.RequestException:
+            last_status = -1
+    return _CANDIDATES[0], False, last_status
+
+
+def _body_up(text: str) -> bool:
+    t = (text or "").lower()
+    return "up" in t or '"status":"ok"' in t or '"status": "ok"' in t