diff --git a/src/main/java/com/yunhai/notice/controller/api/NoticeApprovalController.java b/src/main/java/com/yunhai/notice/controller/api/NoticeApprovalController.java
index d74294f..8511da6 100644
--- a/src/main/java/com/yunhai/notice/controller/api/NoticeApprovalController.java
+++ b/src/main/java/com/yunhai/notice/controller/api/NoticeApprovalController.java
@@ -1,7 +1,11 @@
 package com.yunhai.notice.controller.api;
 
 import com.yunhai.notice.config.Config;
+import com.yunhai.notice.entity.Notice;
+import com.yunhai.notice.repository.NoticeRepository;
 import com.yunhai.notice.service.flow.NoticeApprovalClient;
+import com.yunhai.notice.service.flow.NoticeFlowEmbedService;
+import com.yunhai.notice.service.flow.NoticeFlowGuard;
 import com.yunhai.platform.apistd.BizException;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import com.yunhai.platform.utils.model.BoaUser;
@@ -15,15 +19,19 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.util.List;
 import java.util.Map;
 
 /**
- * 应用内审批（第三步 T-C4）："我的待审核"数据面。前端不直调 oapi——
- * operatorId/operatorName 一律取 CAS 登录态（BoaUser），请求参数里不收身份字段，
+ * 应用内审批（第三步 T-C4）："我的待审核"数据面 + v2.1 业务详情卡片/记录/完整办理换址。
+ * 前端不直调 oapi——operatorId/operatorName 一律取 CAS 登录态（BoaUser），请求参数里不收身份字段，
  * 防伪造办理人；对端 flow-center 再按任务办理人复核（双层）。
  * <ul>
  * <li>GET  Approval/Todo：待办分页（bizType=notice 固定）；</li>
  * <li>GET  Approval/Instances：办件分页（status 可选）；</li>
+ * <li>GET  Approval/ByBiz：当前人在该通知上的待办（0/1/N，卡片据此决定可写还是只读）；</li>
+ * <li>GET  Approval/RecordUrl：审批记录抽屉地址（token 只读页，复用 {@link NoticeFlowEmbedService}）；</li>
+ * <li>GET  Approval/TaskPageUrl：完整办理任务页地址（先确认 taskId 属于当前人待办）；</li>
  * <li>POST Approval/Approve / Reject：办理（body 仅 opinion/edgeName）。</li>
  * </ul>
  */
@@ -33,6 +41,9 @@ import java.util.Map;
 public class NoticeApprovalController {
 
     private final NoticeApprovalClient approvalClient;
+    private final NoticeFlowEmbedService embedService;
+    private final NoticeRepository noticeRepository;
+    private final NoticeFlowGuard noticeFlowGuard;
 
     /** 我的待审核（列表页数据源） */
     @GetMapping("Todo")
@@ -72,6 +83,79 @@ public class NoticeApprovalController {
                 body == null ? null : body.get("opinion"));
     }
 
+    /**
+     * 当前人在该通知上的待办（v2.1 卡片数据源）。身份只取会话；{@code serid} 先过与记录页
+     * 同一套可见性守卫（未发布通知仅提交人/管理员/办理人/被抄送人可见）。
+     * <p>出参 {@code tasks} 的 0/1/N 由前端据此决定"只读 / 可办理 / 多个待办引导去列表"，
+     * 本端不猜选、不合并。办件不存在与"有办件但不是我的待办"同形（空 tasks），不用于探测。
+     */
+    @GetMapping("ByBiz")
+    public Map<String, Object> byBiz(@RequestParam("serid") Integer serid, BoaUser user) {
+        Operator op = requireOperator(user);
+        requireVisible(serid, user);
+        return approvalClient.byBiz(op.schId, op.userId, serid);
+    }
+
+    /**
+     * 审批记录抽屉地址（token 只读页）：直接复用 {@link NoticeFlowEmbedService#embedUrl}，
+     * 那里已做通知存在性 + 未发布可见性 + "尚未进入流程"三重校验，且 token 现取现发不缓存。
+     * 与 {@code /api/notice/flow/Embed} 同一条实现，避免两个入口对同一 Drawer 漂移出不同守卫口径。
+     */
+    @GetMapping("RecordUrl")
+    public Map<String, String> recordUrl(@RequestParam("serid") Integer serid, BoaUser user) {
+        requireOperator(user);
+        return embedService.embedUrl(serid, user);
+    }
+
+    /**
+     * 完整办理任务页地址（CAS 会话页，无 token）。
+     * <p>先打 byBiz 确认 {@code taskId} 确实在<b>当前人</b>该通知的待办里才签发——任务页是写面，
+     * 顺手签发一个别人的 taskId 等于替他人挂一个办理入口。flow-center 侧仍会按 assigneeId
+     * 逐字复核，本处只是不把无效地址散播到前端。
+     */
+    @GetMapping("TaskPageUrl")
+    public Map<String, Object> taskPageUrl(@RequestParam("serid") Integer serid,
+                                           @RequestParam("taskId") Long taskId, BoaUser user) {
+        Operator op = requireOperator(user);
+        requireVisible(serid, user);
+        if (!isMyPendingTask(serid, taskId, op)) {
+            throw new BizException(ErrorCode.FORBIDDEN, "该任务不是你在本通知上的待办");
+        }
+        return approvalClient.taskPageUrl(op.schId, taskId);
+    }
+
+    /** byBiz 出参里是否含该 taskId（对端 tasks 元素为 {taskId,nodeId,nodeName,arriveTime,outlets}） */
+    @SuppressWarnings("unchecked")
+    private boolean isMyPendingTask(Integer serid, Long taskId, Operator op) {
+        Map<String, Object> data = approvalClient.byBiz(op.schId, op.userId, serid);
+        Object tasks = data == null ? null : data.get("tasks");
+        if (!(tasks instanceof List)) {
+            return false;
+        }
+        for (Object row : (List<Object>) tasks) {
+            if (row instanceof Map) {
+                Object id = ((Map<String, Object>) row).get("taskId");
+                if (id instanceof Number && taskId.equals(((Number) id).longValue())) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * 通知可见性守卫（口径与 {@link NoticeFlowEmbedService#embedUrl} 逐字一致）：存在性 +
+     * 未发布（status!=1）走 {@link NoticeFlowGuard}。已发布通知照常放行（全校可见，审批数据面
+     * 只对办理人出 tasks）。
+     */
+    private void requireVisible(Integer noticeId, BoaUser user) {
+        Notice notice = noticeRepository.findById(noticeId)
+                .orElseThrow(() -> new BizException(ErrorCode.FORBIDDEN, "通知不存在: " + noticeId));
+        if (notice.getStatus() == null || notice.getStatus() != 1) {
+            noticeFlowGuard.requireUnpublishedVisible(notice, user);
+        }
+    }
+
     /** 登录态提参：无身份字段可被请求注入；姓名兜底账号（与 NoticeFlowService 提交人口径一致） */
     private static Operator requireOperator(BoaUser user) {
         if (user == null || user.getId() == null) {
diff --git a/src/main/java/com/yunhai/notice/service/flow/NoticeApprovalClient.java b/src/main/java/com/yunhai/notice/service/flow/NoticeApprovalClient.java
index e326a0a..9263f86 100644
--- a/src/main/java/com/yunhai/notice/service/flow/NoticeApprovalClient.java
+++ b/src/main/java/com/yunhai/notice/service/flow/NoticeApprovalClient.java
@@ -72,6 +72,41 @@ public class NoticeApprovalClient {
         return openCall.get(TARGET, "/oapi/flow/instances", query, Map.class);
     }
 
+    /**
+     * 当前人在本通知上的待办（v2.1 业务详情卡片数据源，{@code /oapi/flow/tasks/by-biz}）。
+     * <p>返回 Map 即对端 {@code ByBizTasksVo} JSON：{@code tasks[]} 0/1/N 三种计数都走 HTTP 200，
+     * <b>调用方不得据 tasks 反推"这个通知上有没有别人的待办"</b>——办件不存在、错学校、错 bizType、
+     * 非办理人四种情形出参完全同形（都是空 tasks），这是对端的防探测设计，本端不要试图区分。
+     * <p>{@code currentNodes} 是节点 <b>id</b> 逗号串（办件原文口径），人读名称取 {@code tasks[].nodeName}。
+     */
+    @SuppressWarnings("unchecked")
+    public Map<String, Object> byBiz(Integer schId, Integer operatorId, Integer noticeId) {
+        requireEnabled();
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("schId", String.valueOf(schId));
+        query.put("bizType", FlowCenterClient.BIZ_TYPE);
+        query.put("bizId", String.valueOf(noticeId));
+        query.put("operatorId", String.valueOf(operatorId));
+        return openCall.get(TARGET, "/oapi/flow/tasks/by-biz", query, Map.class);
+    }
+
+    /**
+     * 完整办理任务页地址（{@code /oapi/flow/embed/url?mode=task}）：返回 CAS 会话页
+     * {@code {front}/#/task/{taskId}}，<b>无 token</b>（写面，办理权由该页加载时的用户面接口按
+     * assigneeId 复核）。仍走 {@link YschOpenCall} 泛化调用——nexus 已发布快照的
+     * {@code YschFlowOpenApi} 只有 embedUrl/todoTasks/instances，没有 taskPageUrl 门面方法，
+     * 而本批纪律是不动 BasePlatform。SDK 补齐后可平替（URL 不变，测试锁死）。
+     */
+    @SuppressWarnings("unchecked")
+    public Map<String, Object> taskPageUrl(Integer schId, Long taskId) {
+        requireEnabled();
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("schId", String.valueOf(schId));
+        query.put("mode", "task");
+        query.put("taskId", String.valueOf(taskId));
+        return openCall.get(TARGET, "/oapi/flow/embed/url", query, Map.class);
+    }
+
     /** 同意（opinion 可空；多出口 edgeName 透传） */
     public void approve(Long taskId, Integer schId, Integer operatorId, String operatorName,
                         String opinion, String edgeName) {
diff --git a/src/test/java/com/yunhai/notice/controller/api/NoticeApprovalControllerTest.java b/src/test/java/com/yunhai/notice/controller/api/NoticeApprovalControllerTest.java
new file mode 100644
index 0000000..3ed3994
--- /dev/null
+++ b/src/test/java/com/yunhai/notice/controller/api/NoticeApprovalControllerTest.java
@@ -0,0 +1,279 @@
+package com.yunhai.notice.controller.api;
+
+import com.yunhai.notice.entity.Notice;
+import com.yunhai.notice.repository.NoticeRepository;
+import com.yunhai.notice.service.flow.NoticeApprovalClient;
+import com.yunhai.notice.service.flow.NoticeFlowEmbedService;
+import com.yunhai.notice.service.flow.NoticeFlowGuard;
+import com.yunhai.platform.apistd.BizException;
+import com.yunhai.platform.utils.model.BoaRoleInfo;
+import com.yunhai.platform.utils.model.BoaUser;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * v2.1 应用内审批代理端点单测（ByBiz / RecordUrl / TaskPageUrl）。
+ * <p>本类的存在意义全在"身份与地址"这两条纪律上：
+ * <ul>
+ *   <li>身份只能来自 CAS 会话（BoaUser），请求参数里没有 operatorId/schId 的位置——
+ *       断言的是"传给出站客户端的正是会话里的值"，而不是"参数被透传"；</li>
+ *   <li>任务页是写面：taskId 不在当前人待办里就不签发地址（宁可前端拿不到按钮，
+ *       也不发一个能点到别人办理页的地址）。</li>
+ * </ul>
+ */
+class NoticeApprovalControllerTest {
+
+    private static final int SCH = 27;
+    private static final int USER_ID = 10006;
+
+    private NoticeApprovalClient approvalClient;
+    private NoticeFlowEmbedService embedService;
+    private NoticeRepository noticeRepository;
+    private NoticeFlowGuard noticeFlowGuard;
+    private NoticeApprovalController controller;
+
+    @BeforeEach
+    void setUp() {
+        approvalClient = mock(NoticeApprovalClient.class);
+        embedService = mock(NoticeFlowEmbedService.class);
+        noticeRepository = mock(NoticeRepository.class);
+        noticeFlowGuard = mock(NoticeFlowGuard.class);
+        controller = new NoticeApprovalController(approvalClient, embedService, noticeRepository, noticeFlowGuard);
+    }
+
+    private BoaUser user() {
+        BoaUser user = new BoaUser();
+        user.setId(USER_ID);
+        user.setAccount("liuwenjuan");
+        user.setName("刘文娟");
+        user.setType(0);
+        BoaRoleInfo role = new BoaRoleInfo();
+        role.setSchId(SCH);
+        user.setCurrentRole(role);
+        return user;
+    }
+
+    private void stubNotice(Integer serid, Integer status) {
+        Notice notice = new Notice();
+        notice.setId(serid);
+        notice.setSchId(SCH);
+        notice.setStatus(status);
+        when(noticeRepository.findById(serid)).thenReturn(Optional.of(notice));
+    }
+
+    /** byBiz 出参里的 tasks（模拟对端 JSON 反序列化后的 Map 形态） */
+    private Map<String, Object> tasksOf(Long... taskIds) {
+        List<Object> rows = new ArrayList<>();
+        for (Long id : taskIds) {
+            Map<String, Object> row = new LinkedHashMap<>();
+            row.put("taskId", id);
+            row.put("nodeId", "n1");
+            row.put("nodeName", "后勤资产处");
+            row.put("outlets", Collections.emptyList());
+            rows.add(row);
+        }
+        Map<String, Object> data = new HashMap<>();
+        data.put("instanceId", 123L);
+        data.put("tasks", rows);
+        return data;
+    }
+
+    // ===== ByBiz =====
+
+    /** 身份取自会话：出站用的是 BoaUser 的 schId/userId，前端参数里只有 serid */
+    @Test
+    void byBiz_identityFromSessionNotRequest() {
+        stubNotice(71, 1);
+        when(approvalClient.byBiz(SCH, USER_ID, 71)).thenReturn(tasksOf(442L));
+        Map<String, Object> out = controller.byBiz(71, user());
+        verify(approvalClient).byBiz(eq(SCH), eq(USER_ID), eq(71));
+        assertEquals(1, ((List<?>) out.get("tasks")).size(), "1 条待办原样透出给卡片");
+    }
+
+    /** 已发布通知（status=1）不走未发布守卫；未发布（status=0）必须走 NoticeFlowGuard */
+    @Test
+    void byBiz_unpublishedNotice_goesThroughVisibilityGuard() {
+        stubNotice(70, 0);
+        BoaUser user = user();
+        controller.byBiz(70, user);
+        verify(noticeFlowGuard).requireUnpublishedVisible(any(Notice.class), eq(user));
+    }
+
+    @Test
+    void byBiz_publishedNotice_skipsUnpublishedGuard() {
+        stubNotice(71, 1);
+        controller.byBiz(71, user());
+        verify(noticeFlowGuard, never()).requireUnpublishedVisible(any(Notice.class), any(BoaUser.class));
+    }
+
+    /** 通知不存在 → 拒绝，且不出站（不给流程中心发一个查不到对象的 byBiz） */
+    @Test
+    void byBiz_noticeMissing_rejectedAndNoOutbound() {
+        when(noticeRepository.findById(999)).thenReturn(Optional.empty());
+        BizException e = assertThrows(BizException.class, () -> controller.byBiz(999, user()));
+        assertTrue(e.getMessage().contains("通知不存在"), "文案须是查不到语义：" + e.getMessage());
+        verify(approvalClient, never()).byBiz(anyInt(), anyInt(), anyInt());
+    }
+
+    /** 不可见（守卫抛 FORBIDDEN）→ 原样拒绝 */
+    @Test
+    void byBiz_notVisible_guardThrows() {
+        stubNotice(70, 0);
+        org.mockito.Mockito.doThrow(new BizException(
+                com.yunhai.platform.utils.exception.ErrorCode.FORBIDDEN, "通知不存在或未发布"))
+                .when(noticeFlowGuard).requireUnpublishedVisible(any(Notice.class), any(BoaUser.class));
+        assertThrows(BizException.class, () -> controller.byBiz(70, user()));
+        verify(approvalClient, never()).byBiz(anyInt(), anyInt(), anyInt());
+    }
+
+    /** 未登录（BoaUser 空）→ 拒绝，身份字段无从伪造 */
+    @Test
+    void byBiz_noSession_rejected() {
+        stubNotice(71, 1);
+        assertThrows(BizException.class, () -> controller.byBiz(71, null));
+        BoaUser noSch = user();
+        noSch.setCurrentRole(null);
+        assertThrows(BizException.class, () -> controller.byBiz(71, noSch));
+    }
+
+    /** 0 条：对端 tasks=[] 时不得报错，卡片据此渲染只读 */
+    @Test
+    void byBiz_zeroTasks_passesThroughEmpty() {
+        stubNotice(72, 1);
+        Map<String, Object> empty = tasksOf();
+        when(approvalClient.byBiz(SCH, USER_ID, 72)).thenReturn(empty);
+        assertEquals(0, ((List<?>) controller.byBiz(72, user()).get("tasks")).size());
+    }
+
+    // ===== TaskPageUrl =====
+
+    /** taskId 在当前人待办里 → 签发任务页地址 */
+    @Test
+    void taskPageUrl_taskIsMine_issued() {
+        stubNotice(71, 1);
+        when(approvalClient.byBiz(SCH, USER_ID, 71)).thenReturn(tasksOf(442L, 443L));
+        Map<String, Object> page = new HashMap<>();
+        page.put("pageUrl", "http://localhost:8088/#/task/443");
+        when(approvalClient.taskPageUrl(SCH, 443L)).thenReturn(page);
+        assertEquals("http://localhost:8088/#/task/443",
+                controller.taskPageUrl(71, 443L, user()).get("pageUrl"));
+    }
+
+    /** 核心越权用例：taskId 不属于当前人待办 → 拒绝签发，且不调用换址端点 */
+    @Test
+    void taskPageUrl_taskNotMine_notIssued() {
+        stubNotice(71, 1);
+        when(approvalClient.byBiz(SCH, USER_ID, 71)).thenReturn(tasksOf(442L));
+        BizException e = assertThrows(BizException.class, () -> controller.taskPageUrl(71, 999L, user()));
+        assertTrue(e.getMessage().contains("不是你在本通知上的待办"), "文案须说明拒因：" + e.getMessage());
+        verify(approvalClient, never()).taskPageUrl(anyInt(), anyLong());
+    }
+
+    /** 本人无待办（tasks=[]）→ 同样拒绝，不为"空 tasks"开一条签发旁路 */
+    @Test
+    void taskPageUrl_noTasks_rejected() {
+        stubNotice(71, 1);
+        when(approvalClient.byBiz(SCH, USER_ID, 71)).thenReturn(tasksOf());
+        assertThrows(BizException.class, () -> controller.taskPageUrl(71, 442L, user()));
+        verify(approvalClient, never()).taskPageUrl(anyInt(), anyLong());
+    }
+
+    /** 脏出参（tasks 缺位/非列表）按"不在待办"处理，不因解析失败而放行 */
+    @Test
+    void taskPageUrl_malformedPayload_failClosed() {
+        stubNotice(71, 1);
+        Map<String, Object> garbage = new HashMap<>();
+        garbage.put("tasks", "not-a-list");
+        when(approvalClient.byBiz(SCH, USER_ID, 71)).thenReturn(garbage);
+        assertThrows(BizException.class, () -> controller.taskPageUrl(71, 442L, user()));
+        when(approvalClient.byBiz(SCH, USER_ID, 71)).thenReturn(null);
+        assertThrows(BizException.class, () -> controller.taskPageUrl(71, 442L, user()));
+    }
+
+    /** 不可见通知不得换任务页地址（与 ByBiz 同一道守卫） */
+    @Test
+    void taskPageUrl_unvisible_rejected() {
+        stubNotice(70, 0);
+        org.mockito.Mockito.doThrow(new BizException(
+                com.yunhai.platform.utils.exception.ErrorCode.FORBIDDEN, "通知不存在或未发布"))
+                .when(noticeFlowGuard).requireUnpublishedVisible(any(Notice.class), any(BoaUser.class));
+        assertThrows(BizException.class, () -> controller.taskPageUrl(70, 442L, user()));
+        verify(approvalClient, never()).taskPageUrl(anyInt(), anyLong());
+    }
+
+    // ===== RecordUrl =====
+
+    /** 记录页复用 NoticeFlowEmbedService（三重校验与 token 现取现发都在那里），本端只做转发 */
+    @Test
+    void recordUrl_delegatesToEmbedService() {
+        BoaUser user = user();
+        when(embedService.embedUrl(71, user))
+                .thenReturn(Collections.singletonMap("pageUrl", "http://localhost:8088/#/embed/instance?token=x"));
+        assertEquals("http://localhost:8088/#/embed/instance?token=x",
+                controller.recordUrl(71, user).get("pageUrl"));
+        verify(embedService).embedUrl(71, user);
+    }
+
+    @Test
+    void recordUrl_notLoggedIn_rejected() {
+        assertThrows(BizException.class, () -> controller.recordUrl(71, null));
+        verify(embedService, never()).embedUrl(anyInt(), any(BoaUser.class));
+    }
+
+    // ===== Approve / Reject（回归位：确认改造后 edgeName 不丢、驳回意见仍被拦） =====
+
+    @Test
+    void approve_edgeNameStillPropagated() {
+        Map<String, String> body = new LinkedHashMap<>();
+        body.put("opinion", "同意");
+        body.put("edgeName", "转乙科");
+        controller.approve(442L, user(), body);
+        verify(approvalClient).approve(442L, SCH, USER_ID, "刘文娟", "同意", "转乙科");
+    }
+
+    /** 单出口快速通过：body 为空/不带 edgeName 时，出站就是 null，不擅自补一个出口名 */
+    @Test
+    void approve_withoutEdge_sendsNullEdgeName() {
+        controller.approve(442L, user(), Collections.emptyMap());
+        verify(approvalClient).approve(442L, SCH, USER_ID, "刘文娟", null, null);
+    }
+
+    /** 无会话即拒绝，且不出站——operator 永远不来自请求 */
+    @Test
+    void approve_noSession_rejected() {
+        assertThrows(BizException.class, () -> controller.approve(442L, null, new HashMap<>()));
+        verify(approvalClient, never()).approve(anyLong(), anyInt(), anyInt(), any(), any(), any());
+    }
+
+    /** 驳回意见必填由出站客户端前置强制；控制器原样抛出，不吞成"成功" */
+    @Test
+    void reject_blankOpinion_propagates() {
+        org.mockito.Mockito.doThrow(new BizException(
+                com.yunhai.platform.utils.exception.ErrorCode.PARAM_ERROR, "驳回必须填写意见"))
+                .when(approvalClient).reject(eq(442L), eq(SCH), eq(USER_ID), eq("刘文娟"), any());
+        BizException e = assertThrows(BizException.class,
+                () -> controller.reject(442L, user(), Collections.singletonMap("opinion", "  ")));
+        assertTrue(e.getMessage().contains("意见"), "须把拦截原因交给前端：" + e.getMessage());
+    }
+}
diff --git a/src/test/java/com/yunhai/notice/flow/NoticeApprovalClientTest.java b/src/test/java/com/yunhai/notice/flow/NoticeApprovalClientTest.java
index feac915..2d3b54b 100644
--- a/src/test/java/com/yunhai/notice/flow/NoticeApprovalClientTest.java
+++ b/src/test/java/com/yunhai/notice/flow/NoticeApprovalClientTest.java
@@ -127,6 +127,58 @@ class NoticeApprovalClientTest {
         properties.setEnabled(false);
         assertThrows(BizException.class, () -> client.todoTasks(27, 10006, null, null));
         assertThrows(BizException.class, () -> client.approve(1L, 27, 1, "甲", null, null));
+        assertThrows(BizException.class, () -> client.byBiz(27, 10006, 71));
+        assertThrows(BizException.class, () -> client.taskPageUrl(27, 1L));
+    }
+
+    // ===== v2.1 应用内审批：by-biz 卡片数据源 + 完整办理任务页换址 =====
+
+    @Test
+    @SuppressWarnings("unchecked")
+    void byBiz_urlAndParams_charExact() {
+        Map<String, Object> data = new HashMap<>();
+        when(call.get(eq(TARGET), eq("/oapi/flow/tasks/by-biz"), anyMap(), eq(Map.class))).thenReturn(data);
+        client.byBiz(27, 10006, 71);
+        Map<String, String> expected = new LinkedHashMap<>();
+        expected.put("schId", "27");
+        expected.put("bizType", "notice");
+        expected.put("bizId", "71");
+        expected.put("operatorId", "10006");
+        verify(call).get(eq(TARGET), eq("/oapi/flow/tasks/by-biz"), eq(expected), eq(Map.class));
+    }
+
+    /** by-biz 四个参数一律必传（缺一即可能被对端当"可选过滤"放宽成越权查询） */
+    @Test
+    void byBiz_allFourParamsAlwaysSent() {
+        when(call.get(any(String.class), any(String.class), anyMap(), eq(Map.class))).thenReturn(new HashMap<>());
+        client.byBiz(27, 10006, 71);
+        verify(call).get(eq(TARGET), eq("/oapi/flow/tasks/by-biz"),
+                Mockito.argThat(q -> q.size() == 4 && q.containsKey("schId") && q.containsKey("bizType")
+                        && q.containsKey("bizId") && q.containsKey("operatorId")), eq(Map.class));
+    }
+
+    /** 任务页换址走 mode=task（CAS 页、无 token）；本批不动 BasePlatform，故仍是泛化调用 */
+    @Test
+    @SuppressWarnings("unchecked")
+    void taskPageUrl_modeTaskContractShape() {
+        Map<String, Object> page = new HashMap<>();
+        page.put("pageUrl", "http://localhost:8088/#/task/442");
+        when(call.get(eq(TARGET), eq("/oapi/flow/embed/url"), anyMap(), eq(Map.class))).thenReturn(page);
+        Map<String, Object> out = client.taskPageUrl(27, 442L);
+        assertEquals("http://localhost:8088/#/task/442", out.get("pageUrl"));
+        Map<String, String> expected = new LinkedHashMap<>();
+        expected.put("schId", "27");
+        expected.put("mode", "task");
+        expected.put("taskId", "442");
+        verify(call).get(eq(TARGET), eq("/oapi/flow/embed/url"), eq(expected), eq(Map.class));
+    }
+
+    /** 流程中心不可达：原样抛出，不吞异常、不伪装成"无待办"（卡片据此提示稍后重试而非渲染只读空态） */
+    @Test
+    void byBiz_unreachable_propagatesNotSwallowed() {
+        when(call.get(any(String.class), any(String.class), anyMap(), eq(Map.class)))
+                .thenThrow(new RuntimeException("connect timeout"));
+        assertThrows(RuntimeException.class, () -> client.byBiz(27, 10006, 71));
     }
 
     @Test