SNAPSHOT W7 已部署稳定态 — 凯迪ERP+OA一体化平台 (MET 73.3%)

恢复点(restore point)。别人改崩后可 git reset --hard 回到此提交。

== 此快照内容 ==
- 后端 oa-backend: 734 控制器 / 711 实体 (Spring Boot 3.2.5 + SQLite, 端口8091)
- 前端 modern-ui/app: Vue3+Vite, 约700页 (构建产物已在 oa-backend/src/main/resources/static)
- 数据库 oa-backend/data/oa.db: 含全部演示数据 (强制入库, 6.6MB)
- 交接文档 go.md + go-code-reference/endpoints/entities/database.md
- 多代理建设脚本 .claude/wf-*.js

== 状态 ==
- 对 凯迪科技ERP_20260507.xlsx 合规 MET ~73.3% (PARTIAL 75: 34可建+6种子/bug+35外部硬天花板)
- 安全: 5轮红队+5轮复检, default-deny分级鉴权, 连续零可利用
- W3~W7 累计补完436缺口; W8末轮(40缺口)为半成品(源码树可编译但未集成)
- 运行: cd oa-backend; java -jar build/libs/oa-backend-0.1.0.jar --server.port=8091; admin/123456

== 排除(gitignore, 可再生) ==
node_modules / oa-backend/build / .jdks / *.log / Backup-ERP-* / 弃用的OFBiz核心(只保留modern-ui)
完整文件夹备份见同目录 Backup-ERP-20260615-191517/ (含上述全部, 仅缺 node_modules)

时间戳: 20260615-191517

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

oa-backend/src/main/java/com/kaidi/oa/domain/Discussion.java

@@ -0,0 +1,115 @@
+package com.kaidi.oa.domain;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.Lob;
+import jakarta.persistence.Table;
+
+import java.time.Instant;
+
+/** A discussion topic. */
+@Entity
+@Table(name = "discussion")
+public class Discussion {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String title;
+
+    private String author;
+
+    /** 稳定作者 id（SysUser.id）：对象级授权按此比对，根治改名重用冒充。author 仅作展示。 */
+    private Long authorId;
+
+    private String category;
+
+    @Lob
+    @Column(columnDefinition = "TEXT")
+    private String content;
+
+    private int replyCount;
+
+    private Instant createdAt;
+
+    /** 回帖列表 JSON 数组：[{author, content, createdAt}]。 */
+    @Lob
+    @Column(columnDefinition = "TEXT")
+    private String repliesJson;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public Long getAuthorId() {
+        return authorId;
+    }
+
+    public void setAuthorId(Long authorId) {
+        this.authorId = authorId;
+    }
+
+    public String getCategory() {
+        return category;
+    }
+
+    public void setCategory(String category) {
+        this.category = category;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public int getReplyCount() {
+        return replyCount;
+    }
+
+    public void setReplyCount(int replyCount) {
+        this.replyCount = replyCount;
+    }
+
+    public Instant getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(Instant createdAt) {
+        this.createdAt = createdAt;
+    }
+
+    public String getRepliesJson() {
+        return repliesJson;
+    }
+
+    public void setRepliesJson(String repliesJson) {
+        this.repliesJson = repliesJson;
+    }
+}