feat(asset): add vehicle replacement module with BPM approval workflow

Implement complete replacement vehicle management (替换车) supporting
temporary and permanent vehicle replacements under rental contracts,
with BPM-based approval flow, event-driven architecture, and CRUD APIs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

yudao-module-asset/yudao-module-asset-api/src/main/java/cn/iocoder/yudao/module/asset/enums/replacement/ReplacementStatusEnum.java

@@ -0,0 +1,41 @@
+package cn.iocoder.yudao.module.asset.enums.replacement;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Arrays;
+
+/**
+ * 替换车状态枚举
+ *
+ * @author 芋道源码
+ */
+@Getter
+@AllArgsConstructor
+public enum ReplacementStatusEnum {
+
+    DRAFT(0, "草稿"),
+    APPROVING(1, "审批中"),
+    APPROVED(2, "审批通过"),
+    EXECUTING(3, "执行中"),
+    COMPLETED(4, "已完成"),
+    REJECTED(5, "审批驳回"),
+    WITHDRAWN(6, "已撤回");
+
+    /**
+     * 状态
+     */
+    private final Integer status;
+    /**
+     * 名称
+     */
+    private final String name;
+
+    public static ReplacementStatusEnum valueOf(Integer status) {
+        return Arrays.stream(values())
+                .filter(item -> item.getStatus().equals(status))
+                .findFirst()
+                .orElse(null);
+    }
+
+}

yudao-module-asset/yudao-module-asset-api/src/main/java/cn/iocoder/yudao/module/asset/enums/replacement/ReplacementTypeEnum.java

@@ -0,0 +1,36 @@
+package cn.iocoder.yudao.module.asset.enums.replacement;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Arrays;
+
+/**
+ * 替换车类型枚举
+ *
+ * @author 芋道源码
+ */
+@Getter
+@AllArgsConstructor
+public enum ReplacementTypeEnum {
+
+    TEMPORARY(1, "临时替换"),
+    PERMANENT(2, "永久替换");
+
+    /**
+     * 类型
+     */
+    private final Integer type;
+    /**
+     * 名称
+     */
+    private final String name;
+
+    public static ReplacementTypeEnum valueOf(Integer type) {
+        return Arrays.stream(values())
+                .filter(item -> item.getType().equals(type))
+                .findFirst()
+                .orElse(null);
+    }
+
+}