diff --git a/src/main/java/com/yunhai/notice/service/flow/FlowCenterClient.java b/src/main/java/com/yunhai/notice/service/flow/FlowCenterClient.java
index fa05251..705c99f 100644
--- a/src/main/java/com/yunhai/notice/service/flow/FlowCenterClient.java
+++ b/src/main/java/com/yunhai/notice/service/flow/FlowCenterClient.java
@@ -58,6 +58,15 @@ public class FlowCenterClient implements FlowClient {
         if (directoryResolved) {
             com.yunhai.platform.openapi.flow.YschFlowOpenApi.setCall(call);
         }
+        String legacy = properties.getBaseUrl() == null ? "" : properties.getBaseUrl().trim();
+        if (properties.isEnabled() && !directoryResolved && legacy.isEmpty()) {
+            // 目录未配且 legacy 键也空：构造期 fail-fast（本键已无默认值），
+            // 避免静默打 localhost 把"地址没配"伪装成"流程中心不可达"。
+            // enabled=false（显式未接入）时不校验——地址本就不需要。
+            throw new IllegalStateException("流程中心调用地址未配置：请配置服务目录 yh.open.services."
+                    + com.yunhai.platform.openapi.core.PlatformService.FLOWCENTER.key()
+                    + "（推荐，容器直连完整 URL）或回落键 notice.flow.base-url");
+        }
     }
 
     @Override
diff --git a/src/main/java/com/yunhai/notice/service/flow/NoticeFlowProperties.java b/src/main/java/com/yunhai/notice/service/flow/NoticeFlowProperties.java
index 25c3e0e..0e7d2d3 100644
--- a/src/main/java/com/yunhai/notice/service/flow/NoticeFlowProperties.java
+++ b/src/main/java/com/yunhai/notice/service/flow/NoticeFlowProperties.java
@@ -15,8 +15,13 @@ public class NoticeFlowProperties {
     /** 是否接入流程中心（false=编辑页选择器隐藏、FlowClient 全部抛业务异常降级） */
     private boolean enabled = true;
 
-    /** flow-center 基址（Tier 0 目标；本地 http://localhost:8085，生产由 projman 注入） */
-    private String baseUrl = "http://localhost:8085";
+    /**
+     * flow-center 基址的 <b>legacy 回落</b>（Tier 0 ad-hoc TargetSpec 路径）。
+     * 主路径是服务目录 {@code yh.open.services.flowcenter} → {@code YschFlowOpenApi} 门面；
+     * 本键仅迁移期兼容，<b>不再给默认值</b>——两者都空时 {@code FlowCenterClient} 构造期
+     * fail-fast，避免静默打 localhost 把"地址没配"伪装成"流程中心不可达"。
+     */
+    private String baseUrl = "";
 
     /**
      * 本应用对外可达基址（回调注册用）：flow-center 探活与事件推送都打这里。
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 79485f8..c3394c0 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -54,11 +54,14 @@ sms:
 notice:
   flow:
     enabled: true
-    # flow-center 基址（Tier 0 目标，裸地址直连 base-path 空）
-    base-url: http://localhost:8085
+    # flow-center 地址不再单独配置：见上方 yh.open.services.flowcenter（SDK 门面 YschFlowOpenApi）。
+    # legacy 回落键 notice.flow.base-url 已删，且代码侧不再给默认值——两者都缺时启动即失败
+    # （构造期 fail-fast），不静默打 localhost。
     # 本应用对外可达基址（flow-center 回调探活/事件推送打这里；本地=后端直连端口）
     callback-base: http://localhost:8101
-    callback-path: /callback/flow
+    # 回调端点：必须与 OapiFlowCallbackController 映射一致（/callback/* 已随 X-Flw-* 过滤器下线，
+    # 旧值会让本地注册的回调地址 404）。不变式由 NoticeFlowCallbackConfigContractTest 冻结。
+    callback-path: /oapi/notice/flow/callback
     # Notice 前端基址（apply bizUrl 拼接，审批人点击跳回通知详情）
     front-base-url: http://localhost:8077
   # 短信到点补发调度（§3.2 修 BP-R5-2）：fixedDelay 5min，扫"已发布+要短信+未发过+已到点"
@@ -95,6 +98,10 @@ yh:
   open:
     # 四域服务目录零配置：userbase/userclass/usermsg/flowcenter 枚举兜底 = base-host + 默认 ctx
     base-host: http://base.yunhaixingtong.com
+    # flowcenter 显式指向本地流程中心（默认枚举兜底会打 base 域网关，网关无 /oapi 路由）；
+    # 生产改容器直连 http://flow-center-service:10008/flow-center（projman 注入）。
+    services:
+      flowcenter: http://localhost:8085
   # env-config 前端运行时配置（免登录 GET /api/env-config?target=front，数据源见
   # config/PropertyEnvConfigSource：聚合 starter 自动装配，有 bean 即注册端点）。
   # 本地无需配值（前端 dev 走 .env.dev）；线上值经环境变量 YH_ENV_CONFIG_SOURCE_FRONT
diff --git a/src/test/java/com/yunhai/notice/service/flow/FlowCenterClientTest.java b/src/test/java/com/yunhai/notice/service/flow/FlowCenterClientTest.java
index 4f877bf..d55d445 100644
--- a/src/test/java/com/yunhai/notice/service/flow/FlowCenterClientTest.java
+++ b/src/test/java/com/yunhai/notice/service/flow/FlowCenterClientTest.java
@@ -11,6 +11,7 @@ import com.sun.net.httpserver.HttpExchange;
 import com.sun.net.httpserver.HttpServer;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
@@ -141,6 +142,30 @@ class FlowCenterClientTest {
         return new FlowCenterClient(props, new FixedProvider<>(openCall), null, objectMapper);
     }
 
+    @Test
+    @DisplayName("目录与 legacy 键皆未配且 enabled=true：构造期 fail-fast（不静默打 localhost）")
+    void misconfiguredFailsFast() {
+        NoticeFlowProperties props = new NoticeFlowProperties();   // baseUrl 已无默认值
+        YschOpenCall openCall = new YschOpenCall(new YschCallProperties(), objectMapper,
+                (host, basePath) -> java.util.Collections.emptyList());
+        IllegalStateException e = assertThrows(IllegalStateException.class,
+                () -> new FlowCenterClient(props, new FixedProvider<>(openCall), null, objectMapper));
+        assertTrue(e.getMessage().contains("yh.open.services.flowcenter"), e.getMessage());
+        assertTrue(e.getMessage().contains("notice.flow.base-url"), e.getMessage());
+    }
+
+    @Test
+    @DisplayName("enabled=false 且地址全缺：不 fail-fast（显式未接入，地址本就不需要）")
+    void disabledWithoutAddressIsAllowed() {
+        NoticeFlowProperties props = new NoticeFlowProperties();
+        props.setEnabled(false);
+        YschOpenCall openCall = new YschOpenCall(new YschCallProperties(), objectMapper,
+                (host, basePath) -> java.util.Collections.emptyList());
+        FlowCenterClient client = new FlowCenterClient(props, new FixedProvider<>(openCall), null, objectMapper);
+        BizException ex = assertThrows(BizException.class, () -> client.listFlows(1));
+        assertTrue(ex.getMessage().contains("流程中心未接入"), ex.getMessage());
+    }
+
     private FlowCenterClient newClient() {
         return newClient(true);
     }
@@ -198,13 +223,13 @@ class FlowCenterClientTest {
     void registerCallback_contractFields() {
         FlowModels.CallbackRegBody body = new FlowModels.CallbackRegBody();
         body.setFlowGuid("fg-1");
-        body.setCallbackUrl("http://localhost:8101/callback/flow");
+        body.setCallbackUrl("http://localhost:8101/oapi/notice/flow/callback");
         FlowModels.CallbackRegResultVo result = newClient().registerCallback(1, body);
         assertEquals("reg-secret-0123456789abcdef", result.getSecret());
         Captured c = captured.get(0);
         assertEquals("POST", c.method);
         assertEquals("/oapi/flow/callback/reg", c.path);
-        assertEquals("http://localhost:8101/callback/flow", c.body.get("callbackUrl").asText());
+        assertEquals("http://localhost:8101/oapi/notice/flow/callback", c.body.get("callbackUrl").asText());
     }
 
     @Test
diff --git a/src/test/java/com/yunhai/notice/service/flow/NoticeFlowCallbackConfigContractTest.java b/src/test/java/com/yunhai/notice/service/flow/NoticeFlowCallbackConfigContractTest.java
new file mode 100644
index 0000000..af23159
--- /dev/null
+++ b/src/test/java/com/yunhai/notice/service/flow/NoticeFlowCallbackConfigContractTest.java
@@ -0,0 +1,88 @@
+package com.yunhai.notice.service.flow;
+
+import com.yunhai.notice.controller.oapi.OapiFlowCallbackController;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.yaml.snakeyaml.Yaml;
+
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+/**
+ * 回调路径配置契约测试（防"过期值"回归）。<br><br>
+ * 不变式：{@code notice.flow.callback-path}（注册给 flow-center 的回调地址尾段）必须与
+ * {@link OapiFlowCallbackController} 的真实映射逐字一致——不一致时 flow-center 探活/推送全部
+ * 404，而本地单测因为走伪服务端不会发现。<br>
+ * 背景：{@code /callback/*} 自 X-Flw-* 自定义过滤器下线后已不存在，但本地 {@code application.yml}
+ * 一度仍写着 {@code /callback/flow}（生产 yml 与代码默认值都是 {@code /oapi/notice/flow/callback}），
+ * 导致本地起链时注册到已下线的路径。
+ */
+@DisplayName("Notice 回调路径配置 - 与控制器映射咬合")
+class NoticeFlowCallbackConfigContractTest {
+
+    /** 控制器真实映射（反射拼类级 @RequestMapping + 方法级 @PostMapping） */
+    private static String controllerMapping() {
+        RequestMapping classLevel = OapiFlowCallbackController.class.getAnnotation(RequestMapping.class);
+        assertNotNull(classLevel, "控制器必须有类级 @RequestMapping");
+        String base = classLevel.value()[0];
+        for (Method m : OapiFlowCallbackController.class.getDeclaredMethods()) {
+            PostMapping post = m.getAnnotation(PostMapping.class);
+            if (post != null) {
+                String sub = post.value().length > 0 ? post.value()[0] : "";
+                return base + sub;
+            }
+        }
+        throw new IllegalStateException("控制器缺少 @PostMapping 回调方法");
+    }
+
+    @SuppressWarnings("unchecked")
+    private static Object yamlValue(String path) throws Exception {
+        try (InputStream in = NoticeFlowCallbackConfigContractTest.class.getClassLoader()
+                .getResourceAsStream("application.yml")) {
+            assertNotNull(in, "application.yml 必须在测试类路径上");
+            Map<String, Object> root = new Yaml().load(in);
+            Object cur = root;
+            for (String seg : path.split("\\.")) {
+                if (!(cur instanceof Map)) {
+                    return null;
+                }
+                cur = ((Map<String, Object>) cur).get(seg);
+                if (cur == null) {
+                    return null;
+                }
+            }
+            return cur;
+        }
+    }
+
+    @Test
+    @DisplayName("application.yml 的 notice.flow.callback-path 与控制器映射一致（缺省=代码默认值）")
+    void callbackPathMatchesControllerMapping() throws Exception {
+        String expected = controllerMapping();
+        assertEquals("/oapi/notice/flow/callback", expected, "控制器路径变了，请同步生产配置与注册契约");
+
+        Object configured = yamlValue("notice.flow.callback-path");
+        String actual = configured == null
+                ? new NoticeFlowProperties().getCallbackPath()   // 未配置 → 代码默认值
+                : String.valueOf(configured);
+        assertEquals(expected, actual,
+                "notice.flow.callback-path 与控制器映射不一致：flow-center 派发会 404");
+    }
+
+    @Test
+    @DisplayName("application.yml 的 notice.flow.callback-base-path 与部署 context-path 一致（缺省=空）")
+    void callbackBasePathMatchesContextPath() throws Exception {
+        Object configured = yamlValue("notice.flow.callback-base-path");
+        String actual = configured == null ? "" : String.valueOf(configured);
+        // 本地进程无 context-path（server.servlet.context-path 未设）→ 申报空串；
+        // 生产由 projman 注入 /notice（见 deploy/notice.yaml）。配错的表现是回调 401。
+        Object contextPath = yamlValue("server.servlet.context-path");
+        assertEquals(contextPath == null ? "" : String.valueOf(contextPath), actual);
+    }
+}