feat(monitor): add webhook test message button

Add a test button to the push-notification settings so users can verify Feishu and WeCom group-webhook configs after saving.

Backend: POST /api/settings/preferences/webhook-test reads the saved webhook URL/secret and sends a one-shot test message (max_attempts=1 to skip production retry backoff). All failure modes return HTTP 200 + {ok:false, detail} so the UI renders a single path.

Frontend: api.sendTestWebhook(); TestSendButton/TestResult components shared by both channels; success feedback auto-dismisses after 2s.

Tests: 7 cases covering both channels, failure modes, and single-attempt behavior.

Co-Authored-By: Claude <noreply@anthropic.com>

backend/tests/test_webhook_test.py

@@ -0,0 +1,94 @@
+"""Webhook 测试消息功能 — 向已保存的 Webhook 地址发送测试消息验证配置。
+
+纯逻辑，不触网（monkeypatch webhook_adapter.send_*），直接调用 settings 端点函数。
+"""
+from __future__ import annotations
+
+import pytest
+from pydantic import ValidationError
+
+from app.api.settings import (
+    WebhookTestIn,
+)
+from app.api.settings import (
+    test_webhook as run_webhook_test,
+)
+
+FEISHU_URL = "https://open.feishu.cn/open-apis/bot/v2/hook/test"
+WECOM_URL = "https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=test-key"
+
+
+def test_feishu_sends_saved_url_and_secret(monkeypatch):
+    calls = {}
+    monkeypatch.setattr("app.services.preferences.get_feishu_webhook_url", lambda: FEISHU_URL)
+    monkeypatch.setattr("app.services.preferences.get_feishu_webhook_secret", lambda: "my-secret")
+    monkeypatch.setattr(
+        "app.services.webhook_adapter.send_feishu",
+        lambda url, title, body, secret="", max_attempts=3: calls.update(
+            url=url, title=title, body=body, secret=secret, max_attempts=max_attempts,
+        ) or True,
+    )
+
+    result = run_webhook_test(WebhookTestIn(channel="feishu"))
+
+    assert result["ok"] is True
+    assert calls["url"] == FEISHU_URL
+    assert calls["secret"] == "my-secret"
+    # 诊断路径单次尝试, 不等生产退避重试
+    assert calls["max_attempts"] == 1
+    assert calls["title"] == "TickFlow Stock Panel 推送测试"
+    assert "推送配置正确" in calls["body"]
+
+
+def test_feishu_send_failure_returns_ok_false(monkeypatch):
+    monkeypatch.setattr("app.services.preferences.get_feishu_webhook_url", lambda: FEISHU_URL)
+    monkeypatch.setattr("app.services.preferences.get_feishu_webhook_secret", lambda: "")
+    monkeypatch.setattr("app.services.webhook_adapter.send_feishu", lambda *a, **k: False)
+
+    result = run_webhook_test(WebhookTestIn(channel="feishu"))
+
+    assert result["ok"] is False
+    assert "推送失败" in result["detail"]
+
+
+@pytest.mark.parametrize("channel,url_getter", [
+    ("feishu", "app.services.preferences.get_feishu_webhook_url"),
+    ("wecom", "app.services.preferences.get_wecom_webhook_url"),
+])
+def test_not_configured_returns_ok_false(monkeypatch, channel, url_getter):
+    monkeypatch.setattr(url_getter, lambda: "")
+
+    result = run_webhook_test(WebhookTestIn(channel=channel))
+
+    assert result["ok"] is False
+    assert "尚未配置" in result["detail"]
+
+
+def test_invalid_saved_feishu_url_returns_ok_false(monkeypatch):
+    monkeypatch.setattr("app.services.preferences.get_feishu_webhook_url", lambda: "https://evil.example/hook/xx")
+
+    result = run_webhook_test(WebhookTestIn(channel="feishu"))
+
+    assert result["ok"] is False
+    assert "地址非法" in result["detail"]
+
+
+def test_wecom_sends_saved_url(monkeypatch):
+    calls = {}
+    monkeypatch.setattr("app.services.preferences.get_wecom_webhook_url", lambda: WECOM_URL)
+    monkeypatch.setattr(
+        "app.services.webhook_adapter.send_wecom",
+        lambda url, title, body: calls.update(url=url, title=title, body=body) or True,
+    )
+
+    result = run_webhook_test(WebhookTestIn(channel="wecom"))
+
+    assert result["ok"] is True
+    assert calls["url"] == WECOM_URL
+    assert calls["title"] == "TickFlow Stock Panel 推送测试"
+    assert "推送配置正确" in calls["body"]
+
+
+def test_unknown_channel_rejected_by_pydantic():
+    with pytest.raises(ValidationError):
+        WebhookTestIn(channel="wecom-bot")