diff --git a/docs/FT546WMS-V34-REPAIR-0909-deploy.md b/docs/FT546WMS-V34-REPAIR-0909-deploy.md
new file mode 100644
index 0000000..7ea2f67
--- /dev/null
+++ b/docs/FT546WMS-V34-REPAIR-0909-deploy.md
@@ -0,0 +1,31 @@
+# 2026-09-09 影子修复包切换
+
+本包仍是 V3.4 数据库配套的 SHADOW 程序。无需执行数据库升级或卸载。Legacy 继续负责正式入出库。
+
+## 现场操作
+
+1. 在 IDEA 的运行配置列表确认能看到 `FT546WMS-V34-REPAIR-0909`。先不要启动。
+2. 在协调好的时间停止当前 WMS：`FT546WMS-V34-HALFTRAY-FIX`。不要停止 WCS 或 WCS 影子程序。
+3. 确认旧 WMS 完全退出，8080 不再监听。CMD 可执行 `netstat -ano | findstr :8080`；旧 PID 没有 LISTENING 才继续。
+4. 选择 `FT546WMS-V34-REPAIR-0909`，点运行。等日志出现 `Started RuoYiApplication`，检查登录和查询。不要同时启动两个 WMS。
+5. 记录启动时间，在正常业务发生后复核新的影子比较和电子屏发送情况。无需为测试制造业务单据。
+
+新 JAR 目录：`C:\project\FT546WMS-v34-repair-20260909`。
+
+继续使用服务器原有外置配置 `C:\project\FT546WMS-v34-jar-20260908\config`，不修改密码、数据库连接或影子开关。新增启动项不执行 Maven，不覆盖运行中的 JAR。
+
+## 回退
+
+如果新程序启动失败或影响操作，停止新 WMS，确认进程退出后启动旧配置 `FT546WMS-V34-HALFTRAY-FIX`。数据库没有变更，不需要回退 SQL。若需要完全关闭影子，使用已留存的 `FT546WMS-ROLLBACK-SOURCE-NO-BUILD`，先核对其 `FORTUCKY_SHADOW_ENABLED=false`。
+
+## 本次修复与观察边界
+
+- 出库从同代快照的候选库存行保留项目/物料，支持一个足量库存行位于多明细托盘。保留真实阻挡、锁定、预留、拓扑及数量校验。需要多个库存行凑量、候选跨多个项目/物料、已有托盘作业等仍明确标记不支持。
+- 普通项目多物料入库采用项目级 OPEN 输入，不把任意一条明细当成全部。提前筛选 Legacy 保守可用货位后排名。
+- 同一任务 spare1/2/3 有多组值时，只评估整条空巷道；记录 `READY_CONSERVATIVE` 与 `MATCH_CONSERVATIVE` / `DIFFERENT_CONSERVATIVE`。它们不是完整 Legacy 等价验证，验收时不能混入普通 MATCH。
+- 出库原因新增候选证据、集合 SHA-256、完整性标记。`candidateEvidenceComplete=false` 表示原因字段空间不足，只保留部分明细，摘要不能代替完整历史回放。
+- 非法 `stockinId[limit]` 请求返回参数格式提示且不查询明细；合法接口和服务端异常处理保留原行为。
+- 电子屏两个定时任务独立持有消息和 socket；争用原 6666 端口时下一周期再发送，失败清理资源，保留 5 次协议重试。
+- SQL 51025 仍表示源数据在刷新中变化而拒绝发布；不屏蔽该一致性保护，不增加影子刷新超时。
+
+这次修复不等于批准新算法接管正式业务。两个历史出库代次已被覆盖，尚不能完整回放；请以本包启动后的新样本继续评估。至少按既有观察要求收集同版本有效出入库样本，并单独复核保守比较、跳过、差异和性能。
diff --git a/docs/superpowers/plans/2026-09-09-shadow-repair-plan.md b/docs/superpowers/plans/2026-09-09-shadow-repair-plan.md
new file mode 100644
index 0000000..ac89530
--- /dev/null
+++ b/docs/superpowers/plans/2026-09-09-shadow-repair-plan.md
@@ -0,0 +1,12 @@
+# 现场修复实施计划
+
+设计：../specs/2026-09-09-shadow-repair-design.md
+
+- [x] 现场证据和根因调查；干净隔离工作树基线测试通过。
+- [x] 添加查询绑定、UDP、入出库候选投影回归测试，确认失败。
+- [x] 实现无数据库升级的修复；逐组测试。
+- [x] 完整离线构建和全部 JUnit 测试，独立审查；审查修正后的最终构建成功。
+- [ ] 生成版本化部署包并上传，新增启动项；不重启。
+- [ ] 交付切换步骤、回退方式和仍需现场验证的边界。
+
+后续上传与现场配置结果以独立交付目录中的 build-verification.json / site-preparation.json 为准，避免预先声明部署完成。
diff --git a/docs/superpowers/specs/2026-09-09-shadow-repair-design.md b/docs/superpowers/specs/2026-09-09-shadow-repair-design.md
new file mode 100644
index 0000000..dd0b519
--- /dev/null
+++ b/docs/superpowers/specs/2026-09-09-shadow-repair-design.md
@@ -0,0 +1,25 @@
+# 2026-09-09 现场问题修复
+
+用户已授权修复现场检查发现的问题；继续 Legacy 执行业务、SHADOW 观察，准备交付但不重启现场。
+
+## 证据与边界
+
+现场 29 条记录中，5 条入库都不可比；3 次 Legacy 成功出库有 2 次影子缺货、1 次多明细跳过。历史库存代次已覆盖，修复机制需要回归测试和新样本，不宣称已重放两条历史作业。候选 SQL 的 include 已限制仓库及代次，不存在探查报告提到的跨仓跨代缺口。
+
+## 设计
+
+1. 出库增加仅在 SHADOW 可用的候选库存规划入口。传递快照筛选出的 stockId，以库存行投影项目/物料；保留巷道全部物理货位、阻挡、锁定、预留及缓冲条件。单行足量、多明细托盘可参与；多行合并数量、已有托盘作业仍明确不支持。限定最多 200 个候选。记录有界候选明细和完整集合摘要，不把 Legacy=10 当作匹配通过。
+2. 入库在排名前限定同代 Legacy 保守可用货位。普通项目 OPEN 模式下，多物料/批次按项目级任务规划，不虚构单个物料。字段组唯一时保留严格同组或空巷道；字段组不唯一时只允许空巷道，单列保守比较结果，不作为完整 Legacy 等价验证。保留公共项目、范围不全、作业歧义等保护。
+3. 查询参数绑定错误返回明确的参数格式提示，不执行无筛选明细查询。
+4. 电子屏每次发送拥有独立消息和 socket。固定本地 6666 端口用非阻塞所有权保护，冲突时保留未发送状态待下个周期。try-with-resources 释放；socket 构造失败传播，接收信息为实例字段。保留屏幕协议、内容与重试次数。
+5. SQL 51025 是源数据在刷新期间变化的拒绝保护；继续保留，不放松一致性或提高生产超时。本次不改数据库结构或生产过程。
+
+## 验证与交付
+
+先执行失败回归，再实现修复。覆盖真实 Spring 参数绑定、UDP 本机回环隔离/失败释放、混合托盘及阻挡、同代候选、入库分组/空巷道与保守比较。完整离线构建并显式 Surefire 执行 JUnit 5。独立代码审查后，新目录上传净化 JAR，新增 IDEA 启动项；核对摘要及现有进程未变化。用户择机停止旧 WMS 并切换，保留旧启动项回退。
+
+## 核验和审查处置
+
+2026-09-09 只读取得现场 `dbo.proc_allot_space`，普通项目两个分支均 UNION 整条空巷道，且均要求 `locked='N'`。不按共享模型对 0/null 的宽松解释放宽现场 SQL 谓词。完整定义保留本机 analysis/site-review-20260909/inbound-procedure.json。
+
+独立审查要求保留瞬时 UDP 发送/接收错误的重试，已在协议循环内恢复有界重试并补回归；InvalidPropertyException 仅在实际 ModelAttribute 参数绑定且非法数组参数名来自请求时返回400，内部异常维持500，补真实 MockMvc 回归。候选跨多个项目/物料和多行凑量保留明确 skip；支持的是匹配单个项目/物料的库存行处于多项目/多物料托盘的情况，不声称覆盖任意多项目订单。
diff --git a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/inbound/InboundPlanner.java b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/inbound/InboundPlanner.java
index 51edcb4..74d1a24 100644
--- a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/inbound/InboundPlanner.java
+++ b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/inbound/InboundPlanner.java
@@ -472,6 +472,7 @@ public final class InboundPlanner {
     }
 
     private boolean usableSlot(Lane lane, SpaceState space, InboundRequest request, InboundContext context) {
+        if (request.eligibleSpaceIds() != null && !request.eligibleSpaceIds().contains(space.spaceId())) return false;
         if (!lane.usableForInbound() || !space.availableEmpty() || space.role() != SpaceRole.STORAGE) return false;
         if (request.targetFloor() != null && space.floorNo() != request.targetFloor()) return false;
         if (request.targetFloor() == null && !request.allowedFloors().isEmpty()
diff --git a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/inbound/InboundRequest.java b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/inbound/InboundRequest.java
index 95ac54e..665fa84 100644
--- a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/inbound/InboundRequest.java
+++ b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/inbound/InboundRequest.java
@@ -12,8 +12,16 @@ public record InboundRequest(
         Integer entryFloor,
         Integer targetFloor,
         Set<Integer> allowedFloors,
-        BatchLaneMode batchLaneMode
+        BatchLaneMode batchLaneMode,
+        Set<String> eligibleSpaceIds
 ) {
+    public InboundRequest(String requestId, String trayNo, String projectNo, String productId, String lotNo,
+                          Integer expectedProjectPallets, Integer entryFloor, Integer targetFloor,
+                          Set<Integer> allowedFloors, BatchLaneMode batchLaneMode) {
+        this(requestId, trayNo, projectNo, productId, lotNo, expectedProjectPallets, entryFloor, targetFloor,
+                allowedFloors, batchLaneMode, null);
+    }
+
     public InboundRequest {
         if (requestId == null || requestId.isBlank()) throw new IllegalArgumentException("requestId is required");
         if (trayNo == null || trayNo.isBlank()) throw new IllegalArgumentException("trayNo is required");
@@ -22,5 +30,7 @@ public record InboundRequest(
         }
         allowedFloors = allowedFloors == null ? Set.of() : Set.copyOf(allowedFloors);
         batchLaneMode = batchLaneMode == null ? BatchLaneMode.OPEN : batchLaneMode;
+        // null means unrestricted; an empty captured set means no eligible destination.
+        eligibleSpaceIds = eligibleSpaceIds == null ? null : Set.copyOf(eligibleSpaceIds);
     }
 }
diff --git a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/integration/SchedulingFacade.java b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/integration/SchedulingFacade.java
index 4fa2f06..4e6a174 100644
--- a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/integration/SchedulingFacade.java
+++ b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/integration/SchedulingFacade.java
@@ -60,6 +60,14 @@ public final class SchedulingFacade {
         return applicationService.planOutboundFromPublishedSnapshot(warehouseId, request);
     }
 
+    public OutboundPlan planShadowOutboundCandidates(String warehouseId, OutboundRequest request,
+                                                     java.util.Set<String> eligibleStockIds) {
+        if (properties.getMode() != SchedulingMode.SHADOW) {
+            throw new IllegalStateException("Captured candidate planning requires SHADOW mode");
+        }
+        return applicationService.planShadowOutboundCandidates(warehouseId, request, eligibleStockIds);
+    }
+
     public TidyPlan planTidy(String warehouseId, Instant now) {
         requireAlgorithmMode();
         return applicationService.planTidy(warehouseId, now);
diff --git a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/outbound/OutboundPlanner.java b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/outbound/OutboundPlanner.java
index 421f917..ce1013f 100644
--- a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/outbound/OutboundPlanner.java
+++ b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/outbound/OutboundPlanner.java
@@ -18,7 +18,14 @@ import java.util.Optional;
 public final class OutboundPlanner {
 
     public OutboundPlan plan(OutboundRequest request, OutboundContext context) {
+        return plan(request, context, null);
+    }
+
+    public OutboundPlan plan(OutboundRequest request, OutboundContext context, java.util.Set<String> eligibleSpaceIds) {
         String mode = normalizedMode(request.fifoMode());
+        if (eligibleSpaceIds != null && !"OFF".equals(mode)) {
+            throw new IllegalArgumentException("Captured candidate planning supports FIFO OFF only");
+        }
         if (!List.of("OFF", "STRICT", "FLEXIBLE").contains(mode)) {
             return error(OutboundErrorCode.FIFO_INVALID_MODE, "Unsupported FIFO mode",
                     Map.of("fifoMode", String.valueOf(request.fifoMode())));
@@ -35,6 +42,7 @@ public final class OutboundPlanner {
 
         List<SpaceState> physicalMatches = context.spaces().stream()
                 .filter(SpaceState::occupied)
+                .filter(space -> eligibleSpaceIds == null || eligibleSpaceIds.contains(space.spaceId()))
                 .filter(space -> matchesRequest(space, request))
                 .toList();
         if (physicalMatches.isEmpty()) {
diff --git a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/repository/JdbcWarehouseRepository.java b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/repository/JdbcWarehouseRepository.java
index c56c89d..6c8455b 100644
--- a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/repository/JdbcWarehouseRepository.java
+++ b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/repository/JdbcWarehouseRepository.java
@@ -359,6 +359,17 @@ public final class JdbcWarehouseRepository implements WarehouseRepository {
 
     @Override
     public List<LaneSnapshot> loadLaneSnapshots(String warehouseId, Collection<String> laneCodes) {
+        return loadLaneSnapshots(warehouseId, laneCodes, Set.of());
+    }
+
+    @Override
+    public List<LaneSnapshot> loadShadowOutboundLaneSnapshots(String warehouseId, Collection<String> laneCodes,
+                                                             Set<String> candidateSpaceIds) {
+        return loadLaneSnapshots(warehouseId, laneCodes, Set.copyOf(candidateSpaceIds));
+    }
+
+    private List<LaneSnapshot> loadLaneSnapshots(String warehouseId, Collection<String> laneCodes,
+                                                Set<String> mixedProjectSources) {
         LinkedHashSet<String> codes = laneCodes == null ? new LinkedHashSet<>()
                 : laneCodes.stream().filter(Objects::nonNull).collect(Collectors.toCollection(LinkedHashSet::new));
         if (codes.isEmpty()) return List.of();
@@ -393,7 +404,7 @@ public final class JdbcWarehouseRepository implements WarehouseRepository {
             int capacity = entry.getValue().size();
             List<SpaceSnapshot> spaces = entry.getValue().stream()
                     .map(raw -> mapSpace(raw, capacity, versions.get(entry.getKey()),
-                            inventoryBySpace.getOrDefault(raw.spaceId(), List.of())))
+                            inventoryBySpace.getOrDefault(raw.spaceId(), List.of()), mixedProjectSources.contains(raw.spaceId())))
                     .sorted(Comparator.comparingInt((SpaceSnapshot value) -> value.state().depthOrder())
                             .thenComparing(SpaceSnapshot::spaceId)).toList();
             result.add(new LaneSnapshot(warehouseId, entry.getKey(), versions.get(entry.getKey()), spaces));
@@ -720,6 +731,11 @@ public final class JdbcWarehouseRepository implements WarehouseRepository {
     }
 
     private SpaceSnapshot mapSpace(RawSpace raw, int capacity, VersionToken version, List<InventoryItem> inventory) {
+        return mapSpace(raw, capacity, version, inventory, false);
+    }
+
+    private SpaceSnapshot mapSpace(RawSpace raw, int capacity, VersionToken version,
+                                   List<InventoryItem> inventory, boolean allowMixedProjectSource) {
         EnumSet<SpaceConflict> conflicts = EnumSet.noneOf(SpaceConflict.class);
         if (raw.trayConflict()) conflicts.add(SpaceConflict.TRAY);
         if (raw.projectConflict()) conflicts.add(SpaceConflict.PROJECT);
@@ -734,7 +750,8 @@ public final class JdbcWarehouseRepository implements WarehouseRepository {
         Instant inboundAt = inventory.stream().map(InventoryItem::inboundAt).filter(Objects::nonNull)
                 .min(Comparator.naturalOrder()).orElse(null);
         boolean invalid = locked(raw.locked()) || raw.reserved() || raw.hasGap() || raw.depth() == null
-                || !conflicts.isEmpty() || ("1".equals(raw.spaceStatus()) && (!inventory.isEmpty() || tray != null));
+                || conflicts.stream().anyMatch(conflict -> conflict != SpaceConflict.PROJECT || !allowMixedProjectSource)
+                || ("1".equals(raw.spaceStatus()) && (!inventory.isEmpty() || tray != null));
         SpaceStatus status = invalid ? SpaceStatus.DISABLED : switch (Objects.toString(raw.spaceStatus(), "")) {
             case "1" -> SpaceStatus.EMPTY;
             case "2" -> SpaceStatus.OCCUPIED;
diff --git a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/repository/WarehouseRepository.java b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/repository/WarehouseRepository.java
index af2def9..6de7585 100644
--- a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/repository/WarehouseRepository.java
+++ b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/repository/WarehouseRepository.java
@@ -16,6 +16,10 @@ public interface WarehouseRepository {
     LanePage pageCandidateLanes(String warehouseId, String afterLaneCode, int pageSize);
     LanePage pageWarehouseLanes(String warehouseId, String afterLaneCode, int pageSize);
     List<LaneSnapshot> loadLaneSnapshots(String warehouseId, Collection<String> laneCodes);
+    default List<LaneSnapshot> loadShadowOutboundLaneSnapshots(String warehouseId, Collection<String> laneCodes,
+                                                              Set<String> candidateSpaceIds) {
+        return loadLaneSnapshots(warehouseId, laneCodes);
+    }
     List<SpaceSnapshot> loadRelocationBuffers(String warehouseId, Set<Integer> floors);
     Set<Integer> loadActiveDeepWorkflowFloors(String warehouseId, String excludingRequestId);
     boolean acquireDeepWorkflowLock(String requestId, String warehouseId, int floorNo);
diff --git a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/service/WarehouseApplicationService.java b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/service/WarehouseApplicationService.java
index 655f216..cf6283c 100644
--- a/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/service/WarehouseApplicationService.java
+++ b/fortucky-algorithm/src/main/java/com/ruoyi/algorithm/service/WarehouseApplicationService.java
@@ -98,7 +98,8 @@ public final class WarehouseApplicationService {
             int currentProjectPallets = repository.countProjectPallets(warehouseId, request.projectNo());
             effectiveRequest = new InboundRequest(request.requestId(), request.trayNo(), request.projectNo(),
                     request.productId(), request.lotNo(), currentProjectPallets <= 1 ? 2 : 4,
-                    request.entryFloor(), request.targetFloor(), request.allowedFloors(), request.batchLaneMode());
+                    request.entryFloor(), request.targetFloor(), request.allowedFloors(), request.batchLaneMode(),
+                    request.eligibleSpaceIds());
         }
         List<PendingOutbound> pending = repository.loadPendingOutboundJobs(warehouseId).stream()
                 .map(job -> new PendingOutbound(job.projectNo(), job.productNo(), job.trayNo(),
@@ -136,6 +137,18 @@ public final class WarehouseApplicationService {
         return planOutbound(warehouseId, request, false);
     }
 
+    /** The caller holds a published snapshot lease and supplies the site's eligible inventory IDs. */
+    public OutboundPlan planShadowOutboundCandidates(String warehouseId, OutboundRequest request,
+                                                     Set<String> eligibleStockIds) {
+        Objects.requireNonNull(eligibleStockIds, "eligibleStockIds");
+        if (eligibleStockIds.size() > 200 || request.wholeTrayOrDefault() || nonBlank(request.trayNo())
+                || !nonBlank(request.projectNo()) || !nonBlank(request.productId())
+                || (nonBlank(request.fifoMode()) && !"OFF".equalsIgnoreCase(request.fifoMode()))) {
+            throw new IllegalArgumentException("Shadow candidates require a bounded project/product picking scope with FIFO OFF");
+        }
+        return planOutboundFromCurrentReadModel(warehouseId, request, Set.copyOf(eligibleStockIds));
+    }
+
     private OutboundPlan planOutbound(String warehouseId, OutboundRequest request, boolean refresh) {
         if (refresh) {
             repository.refreshChangedLanes(warehouseId);
@@ -144,6 +157,11 @@ public final class WarehouseApplicationService {
     }
 
     private OutboundPlan planOutboundFromCurrentReadModel(String warehouseId, OutboundRequest request) {
+        return planOutboundFromCurrentReadModel(warehouseId, request, null);
+    }
+
+    private OutboundPlan planOutboundFromCurrentReadModel(String warehouseId, OutboundRequest request,
+                                                         Set<String> eligibleStockIds) {
         RepositoryPolicy policy = repository.loadPolicy(warehouseId);
         WarehouseSummary summary = repository.loadSummary(warehouseId);
         OutboundRequest effectiveRequest = request.fifoToleranceMinutes() == null && policy.fifoToleranceMinutes() > 0
@@ -187,18 +205,28 @@ public final class WarehouseApplicationService {
             matches.addAll(repository.searchOutboundStock(warehouseId,
                     OutboundStockSearch.project(request.projectNo(), request.productId())));
         }
+        if (eligibleStockIds != null) {
+            matches.removeIf(match -> !eligibleStockIds.contains(match.stockId()));
+            Set<String> resolved = matches.stream().map(OutboundStockMatch::stockId).collect(java.util.stream.Collectors.toSet());
+            if (!resolved.equals(eligibleStockIds)) {
+                throw new IllegalStateException("Captured outbound candidate is missing from the published inventory");
+            }
+        }
+        Set<String> matchedSpaceIds = matches.stream().map(OutboundStockMatch::spaceId)
+                .filter(this::nonBlank).collect(java.util.stream.Collectors.toSet());
         List<String> laneCodes = matches.stream().map(OutboundStockMatch::laneCode).filter(Objects::nonNull)
                 .distinct().sorted().toList();
-        List<LaneSnapshot> lanes = repository.loadLaneSnapshots(warehouseId, laneCodes);
+        List<LaneSnapshot> lanes = eligibleStockIds == null ? repository.loadLaneSnapshots(warehouseId, laneCodes)
+                : repository.loadShadowOutboundLaneSnapshots(warehouseId, laneCodes, matchedSpaceIds);
         Set<Integer> floors = matches.stream().map(OutboundStockMatch::floorNo)
                 .collect(java.util.stream.Collectors.toCollection(LinkedHashSet::new));
         List<SpaceSnapshot> buffers = repository.loadRelocationBuffers(warehouseId, floors);
         Map<String, SpaceState> uniqueSpaces = new LinkedHashMap<>();
-        Set<String> matchedSpaceIds = matches.stream().map(OutboundStockMatch::spaceId)
-                .filter(this::nonBlank).collect(java.util.stream.Collectors.toSet());
         String productScope = matchedProductScope;
         lanes.stream().flatMap(lane -> lane.spaceStates().stream()).forEach(space -> uniqueSpaces.put(space.spaceId(),
-                productScope != null && matchedSpaceIds.contains(space.spaceId())
+                eligibleStockIds != null && matchedSpaceIds.contains(space.spaceId())
+                        ? withInventoryScope(space, request.projectNo(), request.productId())
+                        : productScope != null && matchedSpaceIds.contains(space.spaceId())
                         ? withProductScope(space, productScope) : space));
         buffers.stream().map(SpaceSnapshot::state).forEach(space -> uniqueSpaces.put(space.spaceId(), space));
         Map<String, String> rawInboundTimes = new LinkedHashMap<>();
@@ -210,7 +238,8 @@ public final class WarehouseApplicationService {
         OutboundPlan plan = outboundPlanner.plan(effectiveRequest,
                 new OutboundContext(List.copyOf(uniqueSpaces.values()), rawInboundTimes,
                         capacityMode(summary, policy),
-                        repository.loadActiveDeepWorkflowFloors(warehouseId, request.requestId())));
+                        repository.loadActiveDeepWorkflowFloors(warehouseId, request.requestId())),
+                eligibleStockIds == null ? null : matchedSpaceIds);
         String resultCode = switch (plan.status()) {
             case READY -> "READY";
             case WAITING -> "WAITING_" + plan.waiting().orElseThrow().code().name();
@@ -312,10 +341,14 @@ public final class WarehouseApplicationService {
     }
 
     private SpaceState withProductScope(SpaceState space, String productId) {
+        return withInventoryScope(space, space.projectNo(), productId);
+    }
+
+    private SpaceState withInventoryScope(SpaceState space, String projectNo, String productId) {
         return new SpaceState(space.spaceId(), space.zoneCode(), space.laneCode(), space.depthOrder(),
                 space.laneCapacity(), space.floorNo(), space.aisleNo(), space.groupCoding(), space.rowCode(),
                 space.role(), space.status(), space.outboundTaskActive(), space.inventoryProjectConflict(),
-                space.trayNo(), space.projectNo(), productId, space.lotNo(), space.inboundAt(), space.outboundAt(),
+                space.trayNo(), projectNo, productId, space.lotNo(), space.inboundAt(), space.outboundAt(),
                 space.reserved(), space.rowVersion(), space.physicalStockPresent());
     }
 
diff --git a/fortucky-algorithm/src/test/java/com/ruoyi/algorithm/repository/JdbcWarehouseRepositoryTest.java b/fortucky-algorithm/src/test/java/com/ruoyi/algorithm/repository/JdbcWarehouseRepositoryTest.java
index 49620eb..08875cd 100644
--- a/fortucky-algorithm/src/test/java/com/ruoyi/algorithm/repository/JdbcWarehouseRepositoryTest.java
+++ b/fortucky-algorithm/src/test/java/com/ruoyi/algorithm/repository/JdbcWarehouseRepositoryTest.java
@@ -104,6 +104,33 @@ class JdbcWarehouseRepositoryTest {
         assertThat(repository.countProjectPallets("W1", "PROJECT-W2")).isZero();
     }
 
+    @Test
+    void mixedProjectPalletIsSelectableByItsEligibleInventoryItem() throws Exception {
+        execute("INSERT INTO BAS_CARGO_SPACE VALUES ('MIXED-SOURCE','W1','R','A','Mixed pallet',9,91,1,'2','',"
+                + "'MIXED-TRAY','MIXED-LANE','1')");
+        execute("INSERT INTO BAS_STOCK VALUES ('MIX-1','MIXED-SOURCE','MIXED-TRAY','P1','SKU1','LOT','2026-01-01 09:00:00',5,0)");
+        execute("INSERT INTO BAS_STOCK VALUES ('MIX-2','MIXED-SOURCE','MIXED-TRAY','P2','SKU2','LOT','2026-01-01 09:00:00',5,0)");
+        rebuildTopology("W1");
+        var service = new WarehouseApplicationService(repository, new InboundPlanner(), new OutboundPlanner(), new TidyPlanner(), 100);
+        var request = new OutboundRequest("MIX-PICK", null, "P1", "SKU1", "OFF", null, 1, false);
+
+        var plan = service.planShadowOutboundCandidates("W1", request, Set.of("MIX-1"));
+
+        assertThat(plan.status()).isEqualTo(OutboundPlanStatus.READY);
+        assertThat(plan.assignment().orElseThrow().sourceSpaceId()).isEqualTo("MIXED-SOURCE");
+        assertThat(plan.assignment().orElseThrow().projectNo()).isEqualTo("P1");
+        assertThat(plan.assignment().orElseThrow().productId()).isEqualTo("SKU1");
+        assertThat(space(repository.loadLaneSnapshots("W1", List.of("MIXED-LANE")), "MIXED-SOURCE")
+                .state().outboundSelectable()).isFalse();
+        for (String columnValue : List.of("locked='Y'", "status='4'", "tray_code='WRONG'")) {
+            execute("UPDATE BAS_CARGO_SPACE SET " + columnValue + " WHERE cargo_space_id='MIXED-SOURCE'");
+            rebuildTopology("W1");
+            assertThat(service.planShadowOutboundCandidates("W1", request, Set.of("MIX-1")).status())
+                    .isNotEqualTo(OutboundPlanStatus.READY);
+            execute("UPDATE BAS_CARGO_SPACE SET locked='',status='2',tray_code='MIXED-TRAY' WHERE cargo_space_id='MIXED-SOURCE'");
+        }
+    }
+
     @Test
     void statusFourPhysicalOuterPalletIsPreservedAndMakesDeepOutboundWait() throws Exception {
         execute("INSERT INTO BAS_CARGO_SPACE VALUES ('ALLOC-TARGET','W1','RA','A','Target',7,21,2,'2','',"
diff --git a/fortucky-algorithm/src/test/java/com/ruoyi/algorithm/service/ShadowCandidatePlanningTest.java b/fortucky-algorithm/src/test/java/com/ruoyi/algorithm/service/ShadowCandidatePlanningTest.java
new file mode 100644
index 0000000..d400752
--- /dev/null
+++ b/fortucky-algorithm/src/test/java/com/ruoyi/algorithm/service/ShadowCandidatePlanningTest.java
@@ -0,0 +1,89 @@
+package com.ruoyi.algorithm.service;
+
+import com.ruoyi.algorithm.inbound.*;
+import com.ruoyi.algorithm.integration.*;
+import com.ruoyi.algorithm.model.*;
+import com.ruoyi.algorithm.outbound.*;
+import com.ruoyi.algorithm.repository.*;
+import com.ruoyi.algorithm.tidy.TidyPlanner;
+import org.junit.jupiter.api.Test;
+import java.time.Instant;
+import java.util.List;
+import java.util.Set;
+import static org.assertj.core.api.Assertions.*;
+import static org.mockito.Mockito.*;
+import static org.mockito.ArgumentMatchers.*;
+
+class ShadowCandidatePlanningTest {
+    @Test
+    void ineligibleOuterStockRemainsAPhysicalBlockerInsteadOfBeingChosenOrRemoved() {
+        var repository = mock(WarehouseRepository.class);
+        when(repository.loadPolicy("01")).thenReturn(RepositoryPolicy.defaults());
+        when(repository.loadSummary("01")).thenReturn(new WarehouseSummary("01", 1, 2, 2, 0, 0, 0, 0));
+        when(repository.searchOutboundStock(eq("01"), any())).thenReturn(List.of(
+                new OutboundStockMatch("INNER", "L-1", "L", 1, "T1", "P", "SKU", "LOT", null, null),
+                new OutboundStockMatch("OUTER", "L-2", "L", 1, "T2", "P", "SKU", "LOT", null, null)));
+        var source = state("L", 1, SpaceStatus.OCCUPIED, "T1", null);
+        var blocker = state("L", 2, SpaceStatus.OCCUPIED, "T2", "P");
+        when(repository.loadShadowOutboundLaneSnapshots("01", List.of("L"), Set.of("L-1")))
+                .thenReturn(List.of(lane("L", source, blocker)));
+        var service = new WarehouseApplicationService(repository, new InboundPlanner(), new OutboundPlanner(), new TidyPlanner(), 100);
+        var request = new OutboundRequest("O", null, "P", "SKU", "OFF", null, 1, false);
+
+        var plan = service.planShadowOutboundCandidates("01", request, Set.of("INNER"));
+
+        assertThat(plan.waiting()).isPresent();
+        assertThat(plan.waiting().orElseThrow().code()).isEqualTo(OutboundWaitingCode.WAITING_RELOCATION_BUFFER);
+        assertThat(plan.waiting().orElseThrow().details().get("sourceSpaceId")).isEqualTo("L-1");
+        verify(repository, never()).synchronizeReadModel(any());
+        verify(repository, never()).refreshChangedLanes(any());
+        verify(repository, never()).tryReserveInbound(any());
+    }
+
+    @Test
+    void eligibleInboundSetSurvivesProjectSizeResolutionAndPageBoundaries() {
+        var repository = mock(WarehouseRepository.class);
+        when(repository.loadPolicy("01")).thenReturn(RepositoryPolicy.defaults());
+        when(repository.loadSummary("01")).thenReturn(new WarehouseSummary("01", 2, 4, 0, 4, 0, 0, 0));
+        when(repository.pageCandidateLanes("01", null, 1)).thenReturn(new LanePage(
+                List.of(new LaneCandidate("01", "A", 2, 0, 2, false, false, VersionToken.numeric(1))), "A"));
+        when(repository.pageCandidateLanes("01", "A", 1)).thenReturn(new LanePage(
+                List.of(new LaneCandidate("01", "Z", 2, 0, 2, false, false, VersionToken.numeric(2))), null));
+        when(repository.loadLaneSnapshots("01", List.of("A"))).thenReturn(List.of(lane("A",
+                state("A", 1, SpaceStatus.EMPTY, null, null), state("A", 2, SpaceStatus.EMPTY, null, null))));
+        when(repository.loadLaneSnapshots("01", List.of("Z"))).thenReturn(List.of(lane("Z",
+                state("Z", 1, SpaceStatus.EMPTY, null, null), state("Z", 2, SpaceStatus.EMPTY, null, null))));
+        var service = new WarehouseApplicationService(repository, new InboundPlanner(), new OutboundPlanner(), new TidyPlanner(), 1);
+        var request = new InboundRequest("I", "T", "P", null, null, null, 1, null, Set.of(), BatchLaneMode.OPEN, Set.of("Z-1"));
+
+        assertThat(service.planInboundFromPublishedSnapshot("01", request).plan().assignment().orElseThrow().spaceId())
+                .isEqualTo("Z-1");
+        var forbidden = new InboundRequest("I", "T", "P", null, null, null, 1, null, Set.of(), BatchLaneMode.OPEN, Set.of());
+        assertThat(service.planInboundFromPublishedSnapshot("01", forbidden).plan().assignment()).isEmpty();
+        verify(repository, never()).refreshChangedLanes(any());
+    }
+
+    @Test
+    void candidateProjectionCannotBeCalledThroughLegacyOrActiveFacade() {
+        for (var mode : List.of(SchedulingMode.LEGACY, SchedulingMode.ACTIVE)) {
+            var props = new AlgorithmProperties();
+            props.setMode(mode);
+            var service = mock(WarehouseApplicationService.class);
+            var facade = new SchedulingFacade(service, props);
+            assertThatThrownBy(() -> facade.planShadowOutboundCandidates("01",
+                    new OutboundRequest("O", null, "P", "SKU", "OFF", null, 1, false), Set.of("S")))
+                    .isInstanceOf(IllegalStateException.class).hasMessageContaining("SHADOW");
+            verifyNoInteractions(service);
+        }
+    }
+
+    private LaneSnapshot lane(String code, SpaceState... spaces) {
+        return new LaneSnapshot("01", code, VersionToken.numeric(1), java.util.Arrays.stream(spaces)
+                .map(s -> new SpaceSnapshot(s, List.of(), Set.of(), s.availableEmpty(), false, null)).toList());
+    }
+
+    private SpaceState state(String lane, int depth, SpaceStatus status, String tray, String project) {
+        return new SpaceState(lane + "-" + depth, "A", lane, depth, 2, 1, 1, depth, "1", SpaceRole.STORAGE,
+                status, false, false, tray, project, "SKU", "LOT", Instant.EPOCH, null, false, null);
+    }
+}
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/Dzp/DzpSend.java b/ruoyi-admin/src/main/java/com/ruoyi/Dzp/DzpSend.java
index 916ae55..bbfd07e 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/Dzp/DzpSend.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/Dzp/DzpSend.java
@@ -1,6 +1,5 @@
 package com.ruoyi.Dzp;
 
-
 import com.ruoyi.Dzp.domain.basLed;
 import com.ruoyi.Dzp.mapper.BasLedMapper;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -9,7 +8,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.io.IOException;
-import java.util.List;
+import java.util.concurrent.locks.ReentrantLock;
 
 @RestController
 @RequestMapping("/api2dzp")
@@ -17,104 +16,46 @@ public class DzpSend {
     @Autowired
     private BasLedMapper mapper;
 
+    // Both scheduled tasks use the device's existing local port. A busy port is retried next tick.
+    private final ReentrantLock portOwner = new ReentrantLock();
 
     @Scheduled(fixedDelay = 1000)
-    public void InLed() throws IOException {
-        basLed basLed = new basLed();
-        basLed.setSendFlag("0");
-        basLed.setId(1);
-        List<com.ruoyi.Dzp.domain.basLed> basLeds = mapper.selectBasLedList(basLed);
-        if (basLeds != null && basLeds.size() > 0 && (basLeds.get(0).getModel().equals("1") || basLeds.get(0).getModel().equals("2"))) {
-            MyUdpSocket myUdpSocket = new MyUdpSocket(6666);
-            ProtocolDemo.my_udp = myUdpSocket;
-            String ip = basLeds.get(0).getIpAddress();
-            String msgProductTitle = "物资编码：";
-            String msgProduct = basLeds.get(0).getProduct_id();
-            String msgSpecTitle = "物资规格：";
-            String msgSpec = basLeds.get(0).getSpec();
-            String msg3 = "托盘条码：" + basLeds.get(0).getTrayCode();
-            String msg4 = null;
-            if (basLeds.get(0).getModel().equals("1")) {
-                msg4 = "入库数量：";
-            } else {
-                msg4 = "出库数量：";
-            }
-            String ms7 = "物资名称：";
-            String msg8 = basLeds.get(0).getProductName();
-            String msgQuantity = basLeds.get(0).getQuantity();
-            if (ProtocolDemo.demo_play_chapterschedule4(ip, msgProductTitle, msgSpecTitle, msg4, msg3, msgSpec, msgProduct, ms7, msg8, msgQuantity)) {
-                basLeds.get(0).setSendFlag("1");
-                mapper.updateBasLed(basLeds.get(0));
-            }
-            myUdpSocket.close();
-
-        }
-        basLed basLed2 = new basLed();
-        basLed2.setSendFlag("0");
-        basLed2.setId(2);
-        List<com.ruoyi.Dzp.domain.basLed> basLeds2 = mapper.selectBasLedList(basLed2);
-        if (basLeds2 != null && basLeds2.size() > 0 && (basLeds2.get(0).getModel().equals("1") || basLeds2.get(0).getModel().equals("2"))) {
-            MyUdpSocket myUdpSocket = new MyUdpSocket(6666);
-            ProtocolDemo.my_udp = myUdpSocket;
-
-            String ip = basLeds2.get(0).getIpAddress();
-            String msgProductTitle = "物资编码：";
-            String msgProduct = basLeds2.get(0).getProduct_id();
-            String msgSpecTitle = "物资规格：";
-            String msgSpec = basLeds2.get(0).getSpec();
-            String msg3 = "托盘条码：" + basLeds2.get(0).getTrayCode();
-            String msg4 = null;
-            if (basLeds2.get(0).getModel().equals("1")) {
-                msg4 = "入库数量：";
-            } else {
-                msg4 = "出库数量：";
-            }
-            String ms7 = "物资名称：";
-            String msg8 = basLeds2.get(0).getProductName();
-            String msgQuantity = basLeds2.get(0).getQuantity();
-            if (ProtocolDemo.demo_play_chapterschedule4(ip, msgProductTitle, msgSpecTitle, msg4, msg3, msgSpec, msgProduct, ms7, msg8, msgQuantity)) {
-                basLeds2.get(0).setSendFlag("1");
-                mapper.updateBasLed(basLeds2.get(0));
-            }
-
-            myUdpSocket.close();
-
-        }
-
-
-    }
-
+    public void InLed() throws IOException { sendPending(false); }
 
     @Scheduled(fixedDelay = 1000)
-    public void ErrorLed() throws IOException {
-        basLed basLed = new basLed();
-        basLed.setSendFlag("0");
-        basLed.setId(1);
-        List<com.ruoyi.Dzp.domain.basLed> basLeds = mapper.selectBasLedList(basLed);
-        if (basLeds != null && basLeds.size() > 0 && basLeds.get(0).getModel().equals("3")) {
-            MyUdpSocket myUdpSocket = new MyUdpSocket(6666);
-            ProtocolDemo.my_udp = myUdpSocket;
-            String ip = basLeds.get(0).getIpAddress();
-            if (ProtocolDemo.demo_play_chapterschedule2(ip, "报警信息", basLeds.get(0).getErrorMsg())) {
-                basLeds.get(0).setSendFlag("1");
-                mapper.updateBasLed(basLeds.get(0));
-            }
-            myUdpSocket.close();
+    public void ErrorLed() throws IOException { sendPending(true); }
 
-        }
-        basLed basLed2 = new basLed();
-        basLed2.setSendFlag("0");
-        basLed2.setId(2);
-        List<com.ruoyi.Dzp.domain.basLed> basLeds2 = mapper.selectBasLedList(basLed2);
-        if (basLeds2 != null && basLeds2.size() > 0 && basLeds2.get(0).getModel().equals("3")) {
-            MyUdpSocket myUdpSocket = new MyUdpSocket(6666);
-            ProtocolDemo.my_udp = myUdpSocket;
-            String ip = basLeds2.get(0).getIpAddress();
-            if (ProtocolDemo.demo_play_chapterschedule2(ip, "报警信息", basLeds2.get(0).getErrorMsg())) {
-                basLeds2.get(0).setSendFlag("1");
-                mapper.updateBasLed(basLeds2.get(0));
+    private void sendPending(boolean alarm) throws IOException {
+        if (!portOwner.tryLock()) return;
+        try {
+            for (int id = 1; id <= 2; id++) {
+                basLed query = new basLed();
+                query.setId(id);
+                query.setSendFlag("0");
+                var records = mapper.selectBasLedList(query);
+                if (records == null || records.isEmpty()) continue;
+                basLed record = records.get(0);
+                boolean matchingModel = alarm ? "3".equals(record.getModel())
+                        : "1".equals(record.getModel()) || "2".equals(record.getModel());
+                if (!matchingModel) continue;
+                boolean sent;
+                try (MyUdpSocket socket = openSocket()) {
+                    sent = alarm
+                            ? ProtocolDemo.demo_play_chapterschedule2(socket, record.getIpAddress(), "报警信息", record.getErrorMsg())
+                            : ProtocolDemo.demo_play_chapterschedule4(socket, record.getIpAddress(), "物资编码：", "物资规格：",
+                                    "1".equals(record.getModel()) ? "入库数量：" : "出库数量：",
+                                    "托盘条码：" + record.getTrayCode(), record.getSpec(), record.getProduct_id(),
+                                    "物资名称：", record.getProductName(), record.getQuantity());
+                }
+                if (sent) {
+                    record.setSendFlag("1");
+                    mapper.updateBasLed(record);
+                }
             }
-            myUdpSocket.close();
+        } finally {
+            portOwner.unlock();
         }
     }
+
+    MyUdpSocket openSocket() throws IOException { return new MyUdpSocket(6666); }
 }
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/Dzp/MyUdpSocket.java b/ruoyi-admin/src/main/java/com/ruoyi/Dzp/MyUdpSocket.java
index 76527fb..8bb71e1 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/Dzp/MyUdpSocket.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/Dzp/MyUdpSocket.java
@@ -6,88 +6,73 @@ import java.nio.ByteBuffer;
 import java.nio.channels.DatagramChannel;
 import java.nio.channels.SelectionKey;
 import java.nio.channels.Selector;
-import java.util.Set;
 
-public class MyUdpSocket {
-    private DatagramChannel channel;
-    private Selector selector;
-    private final int MAX_SIZE = 1280;
-    private static int client_port;
-    private static String client_ip;
-    ByteBuffer receive_buffer = ByteBuffer.allocate(MAX_SIZE);
+/** One exchange owns its channel, selector, receive buffer and peer address. */
+public class MyUdpSocket implements AutoCloseable {
+    private final DatagramChannel channel;
+    private final Selector selector;
+    private int clientPort;
+    private String clientIp;
+    private final ByteBuffer receiveBuffer = ByteBuffer.allocate(1280);
 
     public MyUdpSocket(int port) throws IOException {
         channel = DatagramChannel.open();
-        selector = Selector.open();
+        Selector opened = null;
         try {
-            //������ͨ��Ϊ������ģʽ
+            opened = Selector.open();
             channel.configureBlocking(false);
-            //��ȡ���׽���ͨ���������׽��֣��������׽��ְ󶨵�����ָ���˿�
-            channel.socket().bind(new InetSocketAddress(port));
-            //Ϊͨ��ѡ����ע��ͨ������ָ��������ѡ�����
-            channel.register(selector, SelectionKey.OP_READ);
-        } catch (IOException e) {
-            e.printStackTrace();
+            channel.bind(new InetSocketAddress(port));
+            channel.register(opened, SelectionKey.OP_READ);
+            selector = opened;
+        } catch (IOException | RuntimeException failure) {
+            if (opened != null) {
+                try { opened.close(); } catch (IOException close) { failure.addSuppressed(close); }
+            }
+            try { channel.close(); } catch (IOException close) { failure.addSuppressed(close); }
+            throw failure;
         }
     }
 
     public final void send(String ip, int port, byte[] buffer, int size) throws IOException {
-        InetSocketAddress client = new InetSocketAddress(ip, port);
-        channel.send(ByteBuffer.wrap(buffer, 0, size), client);  //��EchoClient�ظ�һ�����ݱ�
+        channel.send(ByteBuffer.wrap(buffer, 0, size), new InetSocketAddress(ip, port));
     }
 
+    @Override
     public final void close() throws IOException {
-        selector.close();
-        channel.close();
+        try { selector.close(); } finally { channel.close(); }
     }
 
-    public final int get_client_port() {
-        return client_port;
-    }
-
-    public final String get_client_ip() {
-        return client_ip;
-    }
+    public final int get_client_port() { return clientPort; }
+    public final String get_client_ip() { return clientIp; }
 
     public final void get_receive_buffer(byte[] buffer) {
-        receive_buffer.get(buffer);
+        get_receive_packet(buffer, buffer.length);
     }
 
     public final int receive() {
         try {
-            receive_buffer.clear();
+            receiveBuffer.clear();
             if (selector.select(10) != 0) {
-                Set<SelectionKey> readyKeys = selector.selectedKeys();
-                for (SelectionKey key : readyKeys) {
-                    readyKeys.remove(key);
-                    if (key.isReadable()) {
-                        DatagramChannel dc = (DatagramChannel) key.channel();
-                        InetSocketAddress client = (InetSocketAddress) dc.receive(receive_buffer); //������������һ��Client�����ݱ�
-                        if (client != null) {
-                            client_ip = client.getAddress().getHostAddress();
-                            client_port = client.getPort();
-                            //System.out.println(client_ip+":"+client_port+" size="+receive_buffer.position());
-                            key.interestOps(SelectionKey.OP_READ);
-                            return receive_buffer.position();
-                        } else {
-                            return 0;
-                        }
-                    } else {
-                        return 0;
+                var keys = selector.selectedKeys().iterator();
+                while (keys.hasNext()) {
+                    SelectionKey key = keys.next();
+                    keys.remove();
+                    if (!key.isValid() || !key.isReadable()) continue;
+                    InetSocketAddress peer = (InetSocketAddress) channel.receive(receiveBuffer);
+                    if (peer != null) {
+                        clientIp = peer.getAddress().getHostAddress();
+                        clientPort = peer.getPort();
+                        return receiveBuffer.position();
                     }
                 }
             }
+            return 0;
         } catch (IOException e) {
-            e.printStackTrace();
+            throw new java.io.UncheckedIOException("LED receive failed", e);
         }
-        return 0;
     }
 
     public final void get_receive_packet(byte[] packet, int size) {
-        int i;
-        for (i = 0; i < size; i++) {
-            packet[i] = receive_buffer.array()[i];
-        }
+        System.arraycopy(receiveBuffer.array(), 0, packet, 0, size);
     }
-
 }
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/Dzp/ProtocolDemo.java b/ruoyi-admin/src/main/java/com/ruoyi/Dzp/ProtocolDemo.java
index 0d91377..e08b6f7 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/Dzp/ProtocolDemo.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/Dzp/ProtocolDemo.java
@@ -6,6 +6,7 @@ import java.awt.*;
 //import java.util.Calendar;
 
 public class ProtocolDemo {
+    private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(ProtocolDemo.class);
 
     // ====���붯����ʽ�б�(��ֵ��0��ʼ)====
     // 0 = '���',
@@ -101,10 +102,19 @@ public class ProtocolDemo {
 
     //����UDP����bufferΪ�������ݣ�sizeΪ�������ݳ���
     public static int udp_receive(byte[] buffer) {
+        return udp_receive(my_udp, buffer);
+    }
+
+    private static int udp_receive(MyUdpSocket socket, byte[] buffer) {
         int size = 0;
-        size = my_udp.receive();
+        try {
+            size = socket.receive();
+        } catch (java.io.UncheckedIOException e) {
+            log.debug("LED receive attempt failed; the bounded exchange will retry", e);
+            return 0;
+        }
         if (size > 0) {
-            my_udp.get_receive_packet(buffer, size);
+            socket.get_receive_packet(buffer, size);
         }
         return size;
     }
@@ -415,6 +425,20 @@ public class ProtocolDemo {
     }
 
     public static boolean send_data1(String ip) {
+        return send_data1(my_udp, ledsender, ip);
+    }
+
+    private static boolean udp_send1(MyUdpSocket socket, String ip, byte[] buffer, int size) {
+        try {
+            socket.send(ip, ledport, buffer, size);
+            return true;
+        } catch (java.io.IOException e) {
+            log.debug("LED send attempt failed; the bounded exchange will retry", e);
+            return false;
+        }
+    }
+
+    static boolean send_data1(MyUdpSocket socket, LEDSender2010 ledsender, String ip) {
         int size = 0;
         byte[] packet = new byte[1280];
         int i, j, k, x, r;
@@ -435,9 +459,9 @@ public class ProtocolDemo {
         ok = false;
         for (tx = 0; tx < tx_repeat; tx++) {
             size = ledsender.pkg_begin(packet, addr);
-            udp_send1(ip, packet, size);
+            if (!udp_send1(socket, ip, packet, size)) continue;
             for (x = 0; x < 50; x++) {
-                size = udp_receive(packet);
+                size = udp_receive(socket, packet);
                 if (size > 0 && ledsender.parse_trans_respond(packet, size, LEDSender2010.PKC_BEGIN, 0) > 0) {
                     ok = true;
                     break;
@@ -459,9 +483,9 @@ public class ProtocolDemo {
             for (tx = 0; tx < tx_repeat; tx++) {
                 j = i;
                 size = ledsender.pkg_data(packet, addr, i, 512);
-                udp_send1(ip, packet, size);
+                if (!udp_send1(socket, ip, packet, size)) continue;
                 for (x = 0; x < 50; x++) {
-                    size = udp_receive(packet);
+                    size = udp_receive(socket, packet);
                     if (size > 0) {
                         r = ledsender.parse_trans_respond(packet, size,LEDSender2010.PKC_DATA, i);
                         switch (r) {
@@ -490,9 +514,9 @@ public class ProtocolDemo {
         ok = false;
         for (tx = 0; tx < tx_repeat; tx++) {
             size = ledsender.pkg_end(packet, addr, i);
-            udp_send1(ip, packet, size);
+            if (!udp_send1(socket, ip, packet, size)) continue;
             for (x = 0; x < 50; x++) {
-                size = udp_receive(packet);
+                size = udp_receive(socket, packet);
                 if (size > 0 && ledsender.parse_trans_respond(packet, size, LEDSender2010.PKC_END, i) > 0) {
                     ok = true;
                     break;
@@ -870,6 +894,11 @@ public class ProtocolDemo {
 
     //�Զ��巽�� ��̬��ʾ������Ϣ
     public static boolean demo_play_chapterschedule2(String ip, String msg1, String msg2) {
+        return demo_play_chapterschedule2(my_udp, ip, msg1, msg2);
+    }
+
+    public static boolean demo_play_chapterschedule2(MyUdpSocket socket, String ip, String msg1, String msg2) {
+        LEDSender2010 ledsender = new LEDSender2010();
 
         //���ɽ�Ŀ����
         ledsender.MakeRoot(LEDSender2010.ROOT_PLAY,LEDSender2010.COLOR_TYPE_DOUBLE);
@@ -882,7 +911,7 @@ public class ProtocolDemo {
         ledsender.AddText(0, 11, 192, 32, msg1, "����", 16, Color.BLACK, Color.YELLOW, 0, 2, false, 1, 0, 2, 0, 0, 5, 10000);
         ledsender.AddText(0, 37, 192, 32, msg2, "����", 16, Color.BLACK, Color.YELLOW, 0, 2, false, 1, 0, 2, 0, 0, 5, 10000);
 
-      return send_data1(ip);
+      return send_data1(socket, ledsender, ip);
     }
 
     //�Զ��巽����ʾ��������
@@ -931,6 +960,11 @@ public class ProtocolDemo {
 
 
     public static boolean demo_play_chapterschedule4(String ip, String msg1, String msg2, String msg3, String msg,String msg5,String msg6,String msg7,String msg8, String msgQuantity) {
+        return demo_play_chapterschedule4(my_udp, ip, msg1, msg2, msg3, msg, msg5, msg6, msg7, msg8, msgQuantity);
+    }
+
+    public static boolean demo_play_chapterschedule4(MyUdpSocket socket, String ip, String msg1, String msg2, String msg3, String msg, String msg5, String msg6, String msg7, String msg8, String msgQuantity) {
+        LEDSender2010 ledsender = new LEDSender2010();
 
         //���ɽ�Ŀ����
         ledsender.MakeRoot(LEDSender2010.ROOT_PLAY,LEDSender2010.COLOR_TYPE_DOUBLE);
@@ -951,7 +985,7 @@ public class ProtocolDemo {
         ledsender.AddText(65, 60, 192, 21, msg8, "����", 13, Color.BLACK, Color.YELLOW, 0, 2, false, 1, 0, 7, 0, 0, 5, 3000);
 
 
-        return  send_data1(ip);
+        return send_data1(socket, ledsender, ip);
     }
 
 
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowCandidateEvidence.java b/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowCandidateEvidence.java
new file mode 100644
index 0000000..32b1c66
--- /dev/null
+++ b/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowCandidateEvidence.java
@@ -0,0 +1,41 @@
+package com.ruoyi.algorithm.shadow;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.math.BigDecimal;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+import java.util.HexFormat;
+import java.util.List;
+
+/** Bounded evidence in the existing decision reason; no live business reads or extra DB writes. */
+final class ShadowCandidateEvidence {
+    private static final ObjectMapper JSON = new ObjectMapper();
+
+    static String describe(List<ShadowStockReference> candidates) {
+        var rows = candidates.stream().map(c -> new Candidate(c.getStockId(), c.getSpaceId(), c.getTrayNo(),
+                c.getProjectNo(), c.getProductId(), c.getAvailableQuantity(), c.getTrayItemCount(), c.getTrayJobCount(),
+                c.getSpare1(), c.getSpare2(), c.getSpare3(), c.getVoltage(), c.getPhase())).toList();
+        try {
+            String hash = HexFormat.of().formatHex(MessageDigest.getInstance("SHA-256").digest(JSON.writeValueAsBytes(rows)));
+            List<Candidate> retained = new ArrayList<>();
+            String detail = "[]";
+            for (Candidate row : rows) {
+                retained.add(row);
+                String proposed = JSON.writeValueAsString(retained);
+                if (proposed.length() > 1100) { retained.remove(retained.size() - 1); break; }
+                detail = proposed;
+            }
+            return "candidateCount=" + rows.size() + "; candidateSha256=" + hash
+                    + "; candidateEvidenceComplete=" + (retained.size() == rows.size())
+                    + "; candidateEvidence=" + detail;
+        } catch (JsonProcessingException | NoSuchAlgorithmException e) {
+            throw new IllegalStateException("Could not capture outbound candidate evidence", e);
+        }
+    }
+
+    private record Candidate(String stock, String space, String tray, String project, String product,
+                             BigDecimal availableQuantity, Integer trayItems, Integer trayJobs,
+                             String spare1, String spare2, String spare3, String voltage, String phase) { }
+}
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngine.java b/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngine.java
index c6c5efb..f55372c 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngine.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngine.java
@@ -99,6 +99,13 @@ public class ShadowPlanningEngine {
             }
             List<ShadowStockReference> candidates = inputMapper.selectProjectOutboundCandidates(
                     warehouseId, snapshot.generation(), stockoutDetailId);
+            return withCandidateEvidence(planProjectCandidates(snapshot, stockoutDetailId, reference, candidates), candidates);
+        });
+    }
+
+    private OutboundShadowObservation planProjectCandidates(PublishedShadowSnapshot snapshot, String stockoutDetailId,
+            ShadowStockReference reference, List<ShadowStockReference> candidates) {
+            String warehouseId = snapshot.warehouseId();
             if (candidates.size() > MAX_OUTBOUND_CANDIDATES) {
                 return unavailableProject(snapshot, stockoutDetailId, reference,
                         "SKIPPED_CANDIDATE_LIMIT", "Eligible candidate set exceeds 200 rows");
@@ -117,16 +124,33 @@ public class ShadowPlanningEngine {
                 return unavailableProject(snapshot, stockoutDetailId, reference,
                         "SKIPPED_UNSUPPORTED_PRODUCT_SCOPE", "Planner requires one nonblank candidate product");
             }
-            // The shared planner is single-source and does not apply the site's optional predicates.
-            // Keep it unchanged; validate its proposal against the generation-qualified candidate set.
+            List<ShadowStockReference> idle = candidates.stream()
+                    .filter(candidate -> Integer.valueOf(0).equals(candidate.getTrayJobCount())).toList();
+            if (idle.isEmpty()) {
+                return unavailableProject(snapshot, stockoutDetailId, reference,
+                        "SKIPPED_EXISTING_TRAY_JOB", "Existing tray jobs require unsupported delivery compatibility checks");
+            }
+            List<ShadowStockReference> sufficient = idle.stream().filter(candidate -> candidate.getAvailableQuantity() != null
+                    && candidate.getAvailableQuantity().compareTo(reference.getRequestedQuantity()) >= 0).toList();
+            if (sufficient.isEmpty()) {
+                return unavailableProject(snapshot, stockoutDetailId, reference,
+                        "SKIPPED_MULTI_STOCK_REQUEST", "No single eligible stock row covers the remaining quantity");
+            }
+            if (sufficient.stream().anyMatch(candidate -> isBlank(candidate.getStockId()) || isBlank(candidate.getSpaceId())
+                    || isBlank(candidate.getTrayNo()) || candidate.getTrayItemCount() == null || candidate.getTrayItemCount() < 1)
+                    || sufficient.stream().map(ShadowStockReference::getSpaceId).distinct().count() != sufficient.size()) {
+                return unavailableProject(snapshot, stockoutDetailId, reference,
+                        "SKIPPED_AMBIGUOUS_STOCK_SCOPE", "Each eligible source must identify exactly one sufficient stock row");
+            }
             OutboundRequest request = new OutboundRequest(stockoutDetailId, null,
                     projects.get(0), products.get(0), null, null, null, false);
-            OutboundPlan plan = schedulingFacade.planOutboundFromPublishedSnapshot(warehouseId, request);
+            OutboundPlan plan = schedulingFacade.planShadowOutboundCandidates(warehouseId, request,
+                    sufficient.stream().map(ShadowStockReference::getStockId).collect(java.util.stream.Collectors.toSet()));
             if (plan.assignment().isEmpty()) {
                 return toOutboundObservation(snapshot, stockoutDetailId, reference, plan);
             }
             var assignment = plan.assignment().orElseThrow();
-            var selected = candidates.stream().filter(candidate ->
+            var selected = sufficient.stream().filter(candidate ->
                     Objects.equals(candidate.getSpaceId(), assignment.sourceSpaceId())
                     && Objects.equals(candidate.getTrayNo(), assignment.trayNo())
                     && Objects.equals(candidate.getProjectNo(), assignment.projectNo())
@@ -140,10 +164,6 @@ public class ShadowPlanningEngine {
                 return unavailableProject(snapshot, stockoutDetailId, reference,
                         "SKIPPED_EXISTING_TRAY_JOB", "Existing tray jobs require unsupported delivery compatibility checks");
             }
-            if (!Integer.valueOf(1).equals(stock.getTrayItemCount())) {
-                return unavailableProject(snapshot, stockoutDetailId, reference,
-                        "SKIPPED_MULTI_STOCK_TRAY", "Selected tray does not contain exactly one inventory row");
-            }
             if (stock.getAvailableQuantity() == null
                     || stock.getAvailableQuantity().compareTo(reference.getRequestedQuantity()) < 0) {
                 return unavailableProject(snapshot, stockoutDetailId, reference,
@@ -157,7 +177,14 @@ public class ShadowPlanningEngine {
             return new OutboundShadowObservation(true, snapshot.generation(), warehouseId,
                     snapshot.synchronizedAt(), snapshot.sourceSignature(), stockoutDetailId,
                     "READY", stock.getStockId(), stock.getSpaceId(), reason.toString());
-        });
+    }
+
+    private OutboundShadowObservation withCandidateEvidence(OutboundShadowObservation observation,
+            List<ShadowStockReference> candidates) {
+        return new OutboundShadowObservation(observation.observed(), observation.snapshotGeneration(),
+                observation.warehouseId(), observation.snapshotSynchronizedAt(), observation.sourceSignature(),
+                observation.requestId(), observation.resultCode(), observation.proposedStockId(), observation.proposedSpaceId(),
+                abbreviate(observation.reason(), 1900) + "; " + ShadowCandidateEvidence.describe(candidates));
     }
 
     private OutboundShadowObservation unavailableProject(PublishedShadowSnapshot snapshot, String requestId,
@@ -195,8 +222,7 @@ public class ShadowPlanningEngine {
                     UUID.randomUUID().toString(), observation.warehouseId(), "INBOUND_COMPARE",
                     observation.snapshotGeneration(), observation.snapshotSynchronizedAt(),
                     observation.sourceSignature(),
-                    observation.observed() && "READY".equals(observation.resultCode()) && "10".equals(legacyResultCode)
-                            ? comparisonCode(observation.proposedSpaceId(), legacySpaceId) : "NOT_COMPARABLE",
+                    inboundComparisonCode(observation, legacyResultCode, legacySpaceId),
                     inboundComparisonReason(observation, legacyResultCode, legacySpaceId));
             requireComparisonInserted(inserted);
         });
@@ -244,22 +270,29 @@ public class ShadowPlanningEngine {
             return unavailableInbound(snapshot, taskNo, trayNo, reference, "SKIPPED_MISSING_TASK_DETAILS",
                     "Job was captured but has no task details");
         }
-        if (!Integer.valueOf(1).equals(reference.getFieldGroupCount())) {
-            return unavailableInbound(snapshot, taskNo, trayNo, reference, "SKIPPED_AMBIGUOUS_LEGACY_FIELDS",
-                    "Legacy TOP (1) has no ordering and task details have different spare1/2/3 values");
-        }
-        if (!Integer.valueOf(1).equals(reference.getProductScopeCount()) || isBlank(reference.getProductId())) {
-            return unavailableInbound(snapshot, taskNo, trayNo, reference, "SKIPPED_MULTI_PRODUCT_INPUT",
-                    "Single-product planner cannot represent this task product/lot scope");
+        if (reference.getFieldGroupCount() == null || reference.getFieldGroupCount() < 1
+                || reference.getProductScopeCount() == null || reference.getProductScopeCount() < 1) {
+            return unavailableInbound(snapshot, taskNo, trayNo, reference, "SKIPPED_MISSING_PREDICATE_INPUT",
+                    "Task field or product scope counts are missing");
         }
         if (isBlank(reference.getProjectNo()) || "999".equals(reference.getProjectNo().trim())
                 || "COMMON".equalsIgnoreCase(reference.getProjectNo().trim())) {
             return unavailableInbound(snapshot, taskNo, trayNo, reference, "SKIPPED_UNSUPPORTED_COMMON_PROJECT",
                     "Common-project mapping and pool policy require separate validation");
         }
+        boolean ambiguousFields = reference.getFieldGroupCount() > 1;
+        boolean multipleProducts = reference.getProductScopeCount() > 1;
+        List<String> eligibleSpaces = inputMapper.selectInboundEligibleSpaces(warehouseId,
+                snapshot.generation(), taskNo, trayNo);
+        if (eligibleSpaces.isEmpty()) {
+            return unavailableInbound(snapshot, taskNo, trayNo, reference, "SKIPPED_NO_CONSERVATIVE_SPACE",
+                    ambiguousFields ? "No fully empty lane; Legacy TOP (1) field choice remains unknown"
+                            : "No space satisfies the captured conservative Legacy predicates");
+        }
         InboundRequest request = new InboundRequest(reference.getRequestId(), reference.getTrayNo(),
-                reference.getProjectNo(), reference.getProductId(), reference.getLotNo(),
-                null, null, null, Set.of(), null);
+                reference.getProjectNo(), multipleProducts ? null : reference.getProductId(),
+                multipleProducts ? null : reference.getLotNo(),
+                null, null, null, Set.of(), null, Set.copyOf(eligibleSpaces));
         InboundPlanningResult result = schedulingFacade.planInboundFromPublishedSnapshot(warehouseId, request);
         InboundPlan plan = result.plan();
         if (plan.assignment().isPresent()) {
@@ -272,9 +305,11 @@ public class ShadowPlanningEngine {
             }
             return new InboundShadowObservation(true, snapshot.generation(), warehouseId,
                     snapshot.synchronizedAt(), snapshot.sourceSignature(),
-                    reference.getRequestId(), "READY", assignment.spaceId(),
+                    reference.getRequestId(), ambiguousFields ? "READY_CONSERVATIVE" : "READY", assignment.spaceId(),
                     inboundDiagnostic(snapshot, taskNo, trayNo, reference,
-                            "legacyEligibility=STRICT_GROUP_OR_EMPTY; " + assignment.reason()));
+                            "legacyEligibility=" + (ambiguousFields ? "EMPTY_LANE_ONLY" : "STRICT_GROUP_OR_EMPTY")
+                                    + "; inputScope=" + (multipleProducts ? "PROJECT_MULTI_ITEM_OPEN" : "SINGLE_ITEM")
+                                    + "; eligibleSpaceCount=" + eligibleSpaces.size() + "; " + assignment.reason()));
         }
         var rejection = plan.rejection().orElseThrow();
         return InboundShadowObservation.unavailable(snapshot,
@@ -555,6 +590,16 @@ public class ShadowPlanningEngine {
         return shadowSpaceId.equals(legacySpaceId) ? "MATCH" : "DIFFERENT";
     }
 
+    private String inboundComparisonCode(InboundShadowObservation observation, String legacyCode, String legacySpace) {
+        if (!observation.observed() || !"10".equals(legacyCode)) return "NOT_COMPARABLE";
+        if (!"READY".equals(observation.resultCode()) && !"READY_CONSERVATIVE".equals(observation.resultCode())) {
+            return "NOT_COMPARABLE";
+        }
+        String result = comparisonCode(observation.proposedSpaceId(), legacySpace);
+        return "READY_CONSERVATIVE".equals(observation.resultCode()) && !"NOT_COMPARABLE".equals(result)
+                ? result + "_CONSERVATIVE" : result;
+    }
+
     private boolean isBlank(String value) {
         return value == null || value.isBlank();
     }
diff --git a/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/mapper/ShadowInputMapper.java b/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/mapper/ShadowInputMapper.java
index 799d34d..91b6975 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/mapper/ShadowInputMapper.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/mapper/ShadowInputMapper.java
@@ -19,6 +19,10 @@ public interface ShadowInputMapper {
             @Param("generation") long generation, @Param("taskNo") String taskNo,
             @Param("trayNo") String trayNo, @Param("spaceId") String spaceId);
 
+    List<String> selectInboundEligibleSpaces(@Param("warehouseId") String warehouseId,
+            @Param("generation") long generation, @Param("taskNo") String taskNo,
+            @Param("trayNo") String trayNo);
+
     ShadowStockReference selectProjectOutboundReference(@Param("warehouseId") String warehouseId,
             @Param("generation") long generation,
             @Param("stockoutDetailId") String stockoutDetailId);
diff --git a/ruoyi-admin/src/main/resources/mapper/algorithm/ShadowInputMapper.xml b/ruoyi-admin/src/main/resources/mapper/algorithm/ShadowInputMapper.xml
index 684ab42..14a0b46 100644
--- a/ruoyi-admin/src/main/resources/mapper/algorithm/ShadowInputMapper.xml
+++ b/ruoyi-admin/src/main/resources/mapper/algorithm/ShadowInputMapper.xml
@@ -32,6 +32,17 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <!-- Conservative subset valid in either Legacy project-count branch. Ranking remains in the planner. -->
     <select id="countInboundEligibleSpace" resultType="int">
         select count(*)
+        <include refid="inboundEligibleSpaces"/>
+          and cargo.space_id = #{spaceId}
+    </select>
+
+    <select id="selectInboundEligibleSpaces" resultType="string">
+        select cargo.space_id
+        <include refid="inboundEligibleSpaces"/>
+        order by cargo.space_id
+    </select>
+
+    <sql id="inboundEligibleSpaces">
         from alg.shadow_inbound_request_snapshot input
         join alg.cargo_space_snapshot cargo
           on cargo.warehouse_id = input.warehouse_id
@@ -39,11 +50,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         where input.warehouse_id = #{warehouseId} and input.snapshot_generation = #{generation}
           and input.task_no = #{taskNo} and input.tray_no = #{trayNo}
           and input.predicate_version = 1 and input.detail_count &gt; 0
-          and input.field_group_count = 1 and input.product_scope_count = 1
+          and input.field_group_count &gt; 0 and input.product_scope_count &gt; 0
           and input.tray_job_count = 1 and input.legacy_scope_complete = 1
           and nullif(ltrim(rtrim(input.project_no)), '') is not null
           and input.project_no not in ('999', 'COMMON')
-          and cargo.space_id = #{spaceId} and cargo.space_status = '1' and cargo.locked = 'N'
+          and cargo.space_status = '1' and cargo.locked = 'N'
           and nullif(ltrim(rtrim(cargo.tray_code)), '') is null
           and cargo.this_cargo_area in ('A', 'C')
           and nullif(ltrim(rtrim(cargo.lane_code)), '') is not null
@@ -68,7 +79,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                          or exists (select 1 from alg.inventory_item_snapshot stock
                                     where stock.warehouse_id = lane.warehouse_id
                                       and stock.snapshot_generation = lane.snapshot_generation and stock.space_id = lane.space_id)))
-              or exists (
+              or (input.field_group_count = 1 and exists (
                   select 1 from alg.cargo_space_snapshot resident
                   join alg.inventory_item_snapshot stock
                     on stock.warehouse_id = resident.warehouse_id and stock.snapshot_generation = resident.snapshot_generation
@@ -77,8 +88,8 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                     and resident.lane_code = cargo.lane_code and resident.space_status = '2'
                     and resident.this_cargo_area in ('A', 'C')
                     and stock.project_no = input.project_no
-                    and stock.spare1 = input.spare1 and stock.spare2 = input.spare2 and stock.spare3 = input.spare3))
-    </select>
+                    and stock.spare1 = input.spare1 and stock.spare2 = input.spare2 and stock.spare3 = input.spare3)))
+    </sql>
 
     <sql id="outboundCandidatePredicate">
         item.warehouse_id = #{warehouseId}
@@ -130,6 +141,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         select top (201)
                item.stock_id as stockId, item.tray_code as trayNo, item.space_id as spaceId,
                item.project_no as projectNo, item.product_no as productId,
+               item.spare1, item.spare2, item.spare3, item.voltage, item.phase,
                item.tray_job_count as trayJobCount,
                item.quantity - item.out_quantity as availableQuantity,
                (select count(*) from alg.inventory_item_snapshot trayItem
diff --git a/ruoyi-admin/src/test/java/com/ruoyi/Dzp/DzpSendTest.java b/ruoyi-admin/src/test/java/com/ruoyi/Dzp/DzpSendTest.java
new file mode 100644
index 0000000..4fd95e3
--- /dev/null
+++ b/ruoyi-admin/src/test/java/com/ruoyi/Dzp/DzpSendTest.java
@@ -0,0 +1,98 @@
+package com.ruoyi.Dzp;
+
+import com.ruoyi.Dzp.domain.basLed;
+import com.ruoyi.Dzp.mapper.BasLedMapper;
+import org.junit.jupiter.api.Test;
+import org.springframework.test.util.ReflectionTestUtils;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.*;
+import static org.assertj.core.api.Assertions.*;
+import static org.mockito.Mockito.*;
+import static org.mockito.ArgumentMatchers.*;
+
+class DzpSendTest {
+    @Test
+    void failedExchangeClosesItsSocketAndDoesNotAcknowledgeTheDisplay() throws Exception {
+        var socket = mock(MyUdpSocket.class);
+        var sender = new DzpSend() { @Override MyUdpSocket openSocket() { return socket; } };
+        var mapper = mock(BasLedMapper.class);
+        ReflectionTestUtils.setField(sender, "mapper", mapper);
+        var record = new basLed(); record.setModel("3"); record.setSendFlag("0"); record.setIpAddress("127.0.0.1"); record.setErrorMsg("alarm");
+        when(mapper.selectBasLedList(any())).thenAnswer(call -> call.getArgument(0, basLed.class).getId() == 1 ? List.of(record) : List.of());
+        try (var protocol = mockStatic(ProtocolDemo.class)) {
+            protocol.when(() -> ProtocolDemo.demo_play_chapterschedule2(socket, "127.0.0.1", "报警信息", "alarm"))
+                    .thenThrow(new IllegalStateException("test send failure")).thenReturn(true);
+            assertThatThrownBy(sender::ErrorLed).hasMessage("test send failure");
+            verify(socket).close();
+            verify(mapper, never()).updateBasLed(any());
+            assertThat(record.getSendFlag()).isEqualTo("0");
+            sender.ErrorLed();
+            verify(socket, times(2)).close();
+            verify(mapper).updateBasLed(record);
+        }
+    }
+
+    @Test
+    void busyLocalPortDefersOtherTimerWithoutBlockingOrChangingRows() throws Exception {
+        var entered = new CountDownLatch(1);
+        var release = new CountDownLatch(1);
+        var sender = new DzpSend() {
+            @Override MyUdpSocket openSocket() throws IOException {
+                entered.countDown();
+                try { if (!release.await(3, TimeUnit.SECONDS)) throw new IOException("test timeout"); }
+                catch (InterruptedException e) { Thread.currentThread().interrupt(); throw new IOException(e); }
+                throw new IOException("fixture port failure");
+            }
+        };
+        var mapper = mock(BasLedMapper.class);
+        ReflectionTestUtils.setField(sender, "mapper", mapper);
+        var record = new basLed(); record.setModel("1"); record.setSendFlag("0");
+        when(mapper.selectBasLedList(any())).thenReturn(List.of(record));
+        var executor = Executors.newFixedThreadPool(2);
+        try {
+            var first = executor.submit(() -> { assertThatThrownBy(sender::InLed).isInstanceOf(IOException.class); });
+            assertThat(entered.await(2, TimeUnit.SECONDS)).isTrue();
+            executor.submit(() -> { sender.ErrorLed(); return null; }).get(1, TimeUnit.SECONDS);
+            verify(mapper, times(1)).selectBasLedList(any());
+            verify(mapper, never()).updateBasLed(any());
+            release.countDown();
+            first.get(2, TimeUnit.SECONDS);
+        } finally { release.countDown(); executor.shutdownNow(); }
+    }
+
+    @Test
+    void eachScheduledMessageBuildsItsOwnPayload() throws Exception {
+        try (var payloads = mockConstruction(LEDSender2010.class,
+                (sender, context) -> when(sender.GetDataSize()).thenReturn((1 << 21) + 1))) {
+            var socket = mock(MyUdpSocket.class);
+            assertThat(ProtocolDemo.demo_play_chapterschedule2(socket, "127.0.0.1", "title1", "one")).isFalse();
+            assertThat(ProtocolDemo.demo_play_chapterschedule2(socket, "127.0.0.1", "title2", "two")).isFalse();
+            assertThat(payloads.constructed()).hasSize(2);
+            verify(payloads.constructed().get(0)).GetDataSize();
+            verify(payloads.constructed().get(1)).GetDataSize();
+            verifyNoInteractions(socket);
+        }
+    }
+
+    @Test
+    void transientSocketErrorsStayInsideTheBoundedProtocolRetry() throws Exception {
+        var socket = mock(MyUdpSocket.class);
+        var payload = mock(LEDSender2010.class);
+        doThrow(new IOException("transient send")).doNothing().when(socket).send(anyString(), anyInt(), any(), anyInt());
+        when(socket.receive()).thenThrow(new java.io.UncheckedIOException(new IOException("transient receive"))).thenReturn(1);
+        when(payload.parse_trans_respond(any(), anyInt(), anyInt(), anyInt())).thenReturn(1);
+        assertThat(ProtocolDemo.send_data1(socket, payload, "127.0.0.1")).isTrue();
+        verify(socket, times(3)).send(anyString(), anyInt(), any(), anyInt());
+        verify(socket, times(3)).receive();
+    }
+
+    @Test
+    void persistentSendFailureStopsAfterFiveAttempts() throws Exception {
+        var socket = mock(MyUdpSocket.class);
+        doThrow(new IOException("unreachable")).when(socket).send(anyString(), anyInt(), any(), anyInt());
+        assertThat(ProtocolDemo.send_data1(socket, mock(LEDSender2010.class), "127.0.0.1")).isFalse();
+        verify(socket, times(5)).send(anyString(), anyInt(), any(), anyInt());
+        verify(socket, never()).receive();
+    }
+}
diff --git a/ruoyi-admin/src/test/java/com/ruoyi/Dzp/MyUdpSocketTest.java b/ruoyi-admin/src/test/java/com/ruoyi/Dzp/MyUdpSocketTest.java
new file mode 100644
index 0000000..5711bc1
--- /dev/null
+++ b/ruoyi-admin/src/test/java/com/ruoyi/Dzp/MyUdpSocketTest.java
@@ -0,0 +1,50 @@
+package com.ruoyi.Dzp;
+
+import org.junit.jupiter.api.Test;
+import java.net.DatagramSocket;
+import java.net.DatagramPacket;
+import java.net.InetAddress;
+import java.io.IOException;
+import static org.assertj.core.api.Assertions.*;
+
+class MyUdpSocketTest {
+    @Test
+    void occupiedPortFailsConstructionInsteadOfReturningBrokenSocket() throws Exception {
+        try (var occupied = new DatagramSocket(0)) {
+            assertThatThrownBy(() -> new MyUdpSocket(occupied.getLocalPort()))
+                    .isInstanceOf(IOException.class);
+        }
+    }
+
+    @Test
+    void receivedPeerBelongsToItsOwnSocket() throws Exception {
+        MyUdpSocket first = new MyUdpSocket(0);
+        MyUdpSocket second = new MyUdpSocket(0);
+        try (var peerOne = new DatagramSocket(0); var peerTwo = new DatagramSocket(0)) {
+            exchange(first, peerOne, (byte) 11);
+            int firstPeer = first.get_client_port();
+            exchange(second, peerTwo, (byte) 22);
+            assertThat(first.get_client_port()).isEqualTo(firstPeer);
+            assertThat(second.get_client_port()).isEqualTo(peerTwo.getLocalPort());
+            first.close();
+            exchange(second, peerTwo, (byte) 33);
+        } finally {
+            first.close();
+            second.close();
+        }
+    }
+
+    private void exchange(MyUdpSocket socket, DatagramSocket peer, byte value) throws Exception {
+        peer.setSoTimeout(1000);
+        socket.send("127.0.0.1", peer.getLocalPort(), new byte[]{value}, 1);
+        var request = new DatagramPacket(new byte[64], 64);
+        peer.receive(request);
+        peer.send(new DatagramPacket(new byte[]{value}, 1, InetAddress.getLoopbackAddress(), request.getPort()));
+        int size = 0;
+        for (int attempt = 0; attempt < 100 && size == 0; attempt++) size = socket.receive();
+        assertThat(size).isEqualTo(1);
+        byte[] result = new byte[1];
+        socket.get_receive_packet(result, 1);
+        assertThat(result).containsExactly(value);
+    }
+}
diff --git a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowInboundEligibilityTest.java b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowInboundEligibilityTest.java
index 98e3fd4..610e584 100644
--- a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowInboundEligibilityTest.java
+++ b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowInboundEligibilityTest.java
@@ -172,6 +172,23 @@ class ShadowInboundEligibilityTest {
         }
     }
 
+    @Test
+    void multipleProductsWithOneFieldGroupCanContinueTheMatchingProjectLane() {
+        jdbc.update("update alg.shadow_inbound_request_snapshot set detail_count=5,product_scope_count=5,product_id=null,lot_no=null");
+        space("RESIDENT", "LANE", "1", "2", "N", "OLD", "C");
+        stock("RESIDENT", "OLD");
+        assertThat(eligible()).isEqualTo(1);
+    }
+
+    @Test
+    void ambiguousFieldGroupsOnlyAllowEntirelyEmptyLanes() {
+        jdbc.update("update alg.shadow_inbound_request_snapshot set detail_count=5,field_group_count=2,product_scope_count=5");
+        assertThat(eligible()).isEqualTo(1);
+        space("RESIDENT", "LANE", "1", "2", "N", "OLD", "C");
+        stock("RESIDENT", "OLD");
+        assertThat(eligible()).isZero();
+    }
+
     private void space(String id, String lane, String floor, String status, String locked, String tray, String area) {
         jdbc.update("insert into alg.cargo_space_snapshot values ('01',42,?,?,?,?,?,?,?,'UNRELATED')",
                 id, lane, floor, status, locked, tray, area);
diff --git a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowInboundValidationTest.java b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowInboundValidationTest.java
index b8dec1d..5bb2bc2 100644
--- a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowInboundValidationTest.java
+++ b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowInboundValidationTest.java
@@ -61,6 +61,7 @@ class ShadowInboundValidationTest {
         reference.setTrayJobCount(1);
         reference.setLegacyScopeComplete(1);
         when(mapper.selectInboundInput("01", 42, "31331", "TRAY-1")).thenReturn(reference);
+        when(mapper.selectInboundEligibleSpaces("01", 42, "31331", "TRAY-1")).thenReturn(java.util.List.of("SPACE-9"));
         when(mapper.countInboundEligibleSpace("01", 42, "31331", "TRAY-1", "SPACE-9")).thenReturn(1);
         var assignment = new InboundAssignment("HPR-1", "SPACE-9", "LANE", 1, 1,
                 InboundLadderRung.CONTINUE, InboundBorrowType.NONE, null,
@@ -87,13 +88,22 @@ class ShadowInboundValidationTest {
         reference.setDetailCount(45);
         reference.setFieldGroupCount(2);
         reference.setProductScopeCount(45);
-        assertSkipped("SKIPPED_AMBIGUOUS_LEGACY_FIELDS");
+        var result = plan();
+        assertThat(result.resultCode()).isEqualTo("READY_CONSERVATIVE");
+        assertThat(result.reason()).contains("legacyEligibility=EMPTY_LANE_ONLY");
+        engine.compareInbound(result, "10", "SPACE-9");
+        verify(mapper).insertComparison(any(), any(), eq("INBOUND_COMPARE"), anyLong(), any(), any(),
+                eq("MATCH_CONSERVATIVE"), any());
     }
 
     @Test
     void multiProductTrayDoesNotSilentlyUseOneRepresentativeProduct() {
         reference.setProductScopeCount(2);
-        assertSkipped("SKIPPED_MULTI_PRODUCT_INPUT");
+        assertThat(plan().resultCode()).isEqualTo("READY");
+        verify(facade).planInboundFromPublishedSnapshot(eq("01"), argThat(request ->
+                request.productId() == null && request.lotNo() == null
+                && request.batchLaneMode() == com.ruoyi.algorithm.inbound.BatchLaneMode.OPEN
+                && request.eligibleSpaceIds().equals(java.util.Set.of("SPACE-9"))));
     }
 
     @Test
@@ -148,6 +158,12 @@ class ShadowInboundValidationTest {
 
     private InboundShadowObservation plan() { return engine.planInbound(snapshot, "31331", "TRAY-1"); }
 
+    @Test
+    void noConservativeSpaceDoesNotInventAnUnrestrictedRequest() {
+        when(mapper.selectInboundEligibleSpaces("01", 42, "31331", "TRAY-1")).thenReturn(java.util.List.of());
+        assertSkipped("SKIPPED_NO_CONSERVATIVE_SPACE");
+    }
+
     private void assertSkipped(String code) {
         var result = plan();
         assertThat(result.resultCode()).isEqualTo(code);
diff --git a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowOutboundValidationTest.java b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowOutboundValidationTest.java
index def665a..17a7140 100644
--- a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowOutboundValidationTest.java
+++ b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowOutboundValidationTest.java
@@ -59,7 +59,7 @@ class ShadowOutboundValidationTest {
         candidate.setTrayJobCount(0);
         when(mapper.selectProjectOutboundReference("01", 459L, "DETAIL")).thenReturn(input);
         when(mapper.selectProjectOutboundCandidates("01", 459L, "DETAIL")).thenReturn(List.of(candidate));
-        when(facade.planOutboundFromPublishedSnapshot(eq("01"), any())).thenReturn(
+        when(facade.planShadowOutboundCandidates(eq("01"), any(), any())).thenReturn(
                 OutboundPlan.ready(new OutboundAssignment("DETAIL", "TRAY", input.getProjectNo(), "PRODUCT",
                         "SPACE", 1, false, List.of(), List.of(), false, 0, 0, 0,
                         FifoDecision.off(), Optional.empty(), "proposal"), TaskCountEstimate.zero()));
@@ -71,7 +71,7 @@ class ShadowOutboundValidationTest {
         assertThat(result.resultCode()).isEqualTo("READY");
         assertThat(result.proposedStockId()).isEqualTo("STOCK");
         assertThat(result.reason()).contains("predicateVersion=1", "requestedQuantity=3", "selectedProject=AD.L-00033.01.01");
-        verify(facade).planOutboundFromPublishedSnapshot(eq("01"), argThat(r -> !r.wholeTrayOrDefault()));
+        verify(facade).planShadowOutboundCandidates(eq("01"), argThat(r -> !r.wholeTrayOrDefault()), eq(java.util.Set.of("STOCK")));
         verify(mapper, never()).refreshSnapshot(anyString(), anyLong(), anyString());
         verify(facade, never()).planOutbound(anyString(), any());
     }
@@ -80,7 +80,7 @@ class ShadowOutboundValidationTest {
     void emptyProjectDerivesOnlyProvenCandidateScope() {
         input.setProjectNo(null);
         assertThat(plan().resultCode()).isEqualTo("READY");
-        verify(facade).planOutboundFromPublishedSnapshot(eq("01"), argThat(r -> "AD.L-00033.01.01".equals(r.projectNo())));
+        verify(facade).planShadowOutboundCandidates(eq("01"), argThat(r -> "AD.L-00033.01.01".equals(r.projectNo())), any());
     }
 
     @Test
@@ -134,9 +134,12 @@ class ShadowOutboundValidationTest {
     }
 
     @Test
-    void multipleRowsOnSelectedTrayAreExplicitlyUnsupported() {
+    void otherRowsOnSelectedTrayDoNotEraseTheEligibleItem() {
         candidate.setTrayItemCount(2);
-        assertThat(plan().resultCode()).isEqualTo("SKIPPED_MULTI_STOCK_TRAY");
+        var result = plan();
+        assertThat(result.resultCode()).isEqualTo("READY");
+        assertThat(result.proposedStockId()).isEqualTo("STOCK");
+        assertThat(result.reason()).contains("candidateEvidenceComplete=true", "\"trayItems\":2", "\"stock\":\"STOCK\"");
     }
 
     @Test
@@ -155,4 +158,13 @@ class ShadowOutboundValidationTest {
     private OutboundShadowObservation plan() {
         return engine.planProjectOutbound(snapshot, "DETAIL");
     }
+
+    @Test
+    void unsupportedDuplicateEligibleRowsRemainExplicitAndKeepEvidence() {
+        when(mapper.selectProjectOutboundCandidates("01", 459L, "DETAIL")).thenReturn(List.of(candidate, candidate));
+        var result = plan();
+        assertThat(result.resultCode()).isEqualTo("SKIPPED_AMBIGUOUS_STOCK_SCOPE");
+        assertThat(result.reason()).contains("candidateCount=2", "candidateSha256=");
+        verifyNoInteractions(facade);
+    }
 }
diff --git a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngineTest.java b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngineTest.java
index fcc2c39..dac75a9 100644
--- a/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngineTest.java
+++ b/ruoyi-admin/src/test/java/com/ruoyi/algorithm/shadow/ShadowPlanningEngineTest.java
@@ -52,6 +52,7 @@ class ShadowPlanningEngineTest {
         ShadowInboundReference input = inboundReference("1");
         input.setShadowCandidateCount(3);
         when(mapper.selectInboundInput("01", 42L, "TASK-1", "TRAY-1")).thenReturn(input);
+        when(mapper.selectInboundEligibleSpaces("01", 42L, "TASK-1", "TRAY-1")).thenReturn(java.util.List.of("SPACE-9"));
         when(mapper.countInboundEligibleSpace("01", 42L, "TASK-1", "TRAY-1", "SPACE-9")).thenReturn(1);
         when(mapper.selectPublishedSnapshot("01")).thenReturn(descriptor(SNAPSHOT));
         when(facade.planInboundFromPublishedSnapshot(eq("01"), any()))
@@ -89,7 +90,7 @@ class ShadowPlanningEngineTest {
                 .thenReturn(java.util.List.of(stockReference("01")));
         when(mapper.selectProjectOutboundReference("01", 42L, "DETAIL-1")).thenReturn(reference);
         when(mapper.selectPublishedSnapshot("01")).thenReturn(descriptor(SNAPSHOT));
-        when(facade.planOutboundFromPublishedSnapshot(eq("01"), any()))
+        when(facade.planShadowOutboundCandidates(eq("01"), any(), any()))
                 .thenReturn(OutboundPlan.ready(outboundAssignment(), TaskCountEstimate.zero()));
         ShadowPlanningEngine engine = engine(facade, mapper);
 
@@ -104,7 +105,7 @@ class ShadowPlanningEngineTest {
                         "sourceSignature=ABC123", "detail=DETAIL-1", "rawWarehouse=W02",
                         "project=PROJECT-1", "product=PRODUCT-1", "shadowMatches=1");
         verify(mapper).selectProjectOutboundReference("01", 42L, "DETAIL-1");
-        verify(facade).planOutboundFromPublishedSnapshot(eq("01"), any());
+        verify(facade).planShadowOutboundCandidates(eq("01"), any(), eq(java.util.Set.of("STOCK-1")));
         verify(facade, never()).planOutbound(any(), any());
     }
 
@@ -359,6 +360,8 @@ class ShadowPlanningEngineTest {
     }
 
     private static ShadowPlanningEngine engine(SchedulingFacade facade, ShadowInputMapper mapper) {
+        when(mapper.selectInboundEligibleSpaces(any(), any(Long.class), any(), any()))
+                .thenReturn(java.util.List.of("SPACE-9"));
         return new ShadowPlanningEngine(facade, mapper, properties(), new CapturingTransactionManager());
     }
 
diff --git a/ruoyi-admin/src/test/java/com/ruoyi/in/stockindetail/controller/InStockinDetailBindingTest.java b/ruoyi-admin/src/test/java/com/ruoyi/in/stockindetail/controller/InStockinDetailBindingTest.java
new file mode 100644
index 0000000..41202c6
--- /dev/null
+++ b/ruoyi-admin/src/test/java/com/ruoyi/in/stockindetail/controller/InStockinDetailBindingTest.java
@@ -0,0 +1,44 @@
+package com.ruoyi.in.stockindetail.controller;
+
+import com.ruoyi.framework.web.exception.GlobalExceptionHandler;
+import com.ruoyi.in.stockindetail.service.IInStockinDetailService;
+import com.ruoyi.in.stockindetailfinish.service.IInStockinDetailFinishService;
+import org.junit.jupiter.api.Test;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import static org.mockito.Mockito.*;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+class InStockinDetailBindingTest {
+    @org.springframework.web.bind.annotation.RestController
+    static class BrokenServer {
+        @org.springframework.web.bind.annotation.GetMapping("/fixture/server-failure")
+        Object get() { throw new org.springframework.beans.InvalidPropertyException(BrokenServer.class,
+                "stockinId[limit]", "server property failure"); }
+    }
+
+    @Test
+    void serverPropertyFailureIsNotRelabeledAsBadClientInput() throws Exception {
+        MockMvcBuilders.standaloneSetup(new BrokenServer()).setControllerAdvice(new GlobalExceptionHandler()).build()
+                .perform(get("/fixture/server-failure").param("stockinId[limit]", "20"))
+                .andExpect(jsonPath("$.code").value(500));
+    }
+
+    @Test
+    void nestedOrderNumberIsRejectedBeforeEitherDatabaseQuery() throws Exception {
+        var controller = new InStockinDetailController();
+        var active = mock(IInStockinDetailService.class);
+        var finished = mock(IInStockinDetailFinishService.class);
+        ReflectionTestUtils.setField(controller, "inStockinDetailService", active);
+        ReflectionTestUtils.setField(controller, "inStockinDetailFinishService", finished);
+        var mvc = MockMvcBuilders.standaloneSetup(controller)
+                .setControllerAdvice(new GlobalExceptionHandler()).build();
+
+        mvc.perform(get("/in/stockInDetail/list").param("stockinId[limit]", "20"))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.code").value(400))
+                .andExpect(jsonPath("$.msg").value("请求参数格式不正确，单号等普通字段请传单个值，不要传对象或数组"));
+        verifyNoInteractions(active, finished);
+    }
+}
diff --git a/ruoyi-framework/src/main/java/com/ruoyi/framework/web/exception/GlobalExceptionHandler.java b/ruoyi-framework/src/main/java/com/ruoyi/framework/web/exception/GlobalExceptionHandler.java
index 1ca0283..84af4b7 100644
--- a/ruoyi-framework/src/main/java/com/ruoyi/framework/web/exception/GlobalExceptionHandler.java
+++ b/ruoyi-framework/src/main/java/com/ruoyi/framework/web/exception/GlobalExceptionHandler.java
@@ -3,6 +3,7 @@ package com.ruoyi.framework.web.exception;
 import jakarta.servlet.http.HttpServletRequest;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.beans.InvalidPropertyException;
 import org.springframework.security.access.AccessDeniedException;
 import org.springframework.validation.BindException;
 import org.springframework.web.HttpRequestMethodNotSupportedException;
@@ -90,6 +91,23 @@ public class GlobalExceptionHandler
         return AjaxResult.error(String.format("请求参数类型不匹配，参数[%s]要求类型为：'%s'，但输入值为：'%s'", e.getName(), e.getRequiredType().getName(), value));
     }
 
+    @ExceptionHandler(InvalidPropertyException.class)
+    public AjaxResult handleInvalidPropertyException(InvalidPropertyException e, HttpServletRequest request)
+    {
+        String property = e.getPropertyName();
+        boolean bindingFailure = java.util.Arrays.stream(e.getStackTrace()).anyMatch(frame ->
+                frame.getClassName().equals("org.springframework.web.method.annotation.ModelAttributeMethodProcessor")
+                        && frame.getMethodName().equals("resolveArgument"));
+        if (!bindingFailure || property == null || !property.contains("[")
+                || !request.getParameterMap().containsKey(property))
+        {
+            return handleRuntimeException(e, request);
+        }
+        log.warn("请求地址'{}',请求参数结构不正确", request.getRequestURI());
+        return AjaxResult.error(HttpStatus.BAD_REQUEST,
+                "请求参数格式不正确，单号等普通字段请传单个值，不要传对象或数组");
+    }
+
     /**
      * 拦截未知的运行时异常
      */