fix: 完成系统向智能体数据链路切换

- 切换工作台、聊天历史、资源候选与公共调用到 Agent

- 加固资源绑定、删除保护及发布运行并发控制

- 隔离旧 Bot 专属服务和组件并保留兼容入口

easyflow-api/easyflow-api-usercenter/src/main/java/tech/easyflow/usercenter/controller/agent/UcAgentController.java

@@ -0,0 +1,99 @@
+package tech.easyflow.usercenter.controller.agent;
+
+import com.mybatisflex.core.query.QueryWrapper;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import tech.easyflow.agent.entity.Agent;
+import tech.easyflow.agent.security.AgentVisibilityQueryHelper;
+import tech.easyflow.agent.service.AgentService;
+import tech.easyflow.ai.enums.PublishStatus;
+import tech.easyflow.common.annotation.UsePermission;
+import tech.easyflow.common.domain.Result;
+import tech.easyflow.common.entity.LoginAccount;
+import tech.easyflow.common.satoken.util.SaTokenUtil;
+import tech.easyflow.common.web.exceptions.BusinessException;
+import tech.easyflow.usercenter.model.agent.UcAgentListItemVo;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * 用户中心 Agent 查询接口。
+ */
+@RestController
+@RequestMapping("/userCenter/agent")
+@UsePermission(moduleName = "/api/v1/agent")
+public class UcAgentController {
+
+    private final AgentService agentService;
+    private final AgentVisibilityQueryHelper agentVisibilityQueryHelper;
+
+    /**
+     * 创建用户中心 Agent 控制器。
+     *
+     * @param agentService Agent 服务
+     * @param agentVisibilityQueryHelper Agent 可见性查询助手
+     */
+    public UcAgentController(AgentService agentService,
+                             AgentVisibilityQueryHelper agentVisibilityQueryHelper) {
+        this.agentService = agentService;
+        this.agentVisibilityQueryHelper = agentVisibilityQueryHelper;
+    }
+
+    /**
+     * 查询当前用户可见且已发布的 Agent。
+     *
+     * @return Agent 列表项
+     */
+    @GetMapping("/list")
+    public Result<List<UcAgentListItemVo>> list() {
+        requireCurrentAccount();
+        QueryWrapper queryWrapper = QueryWrapper.create()
+                .select(
+                        Agent::getId,
+                        Agent::getPublishedSnapshotJson
+                )
+                .eq(Agent::getStatus, 1)
+                .eq(Agent::getPublishStatus, PublishStatus.PUBLISHED.getCode());
+        agentVisibilityQueryHelper.applyReadableAccess(queryWrapper);
+        queryWrapper.orderBy(Agent::getModified, false);
+        List<Agent> agents = agentService.list(queryWrapper);
+        if (agents == null || agents.isEmpty()) {
+            return Result.ok(Collections.emptyList());
+        }
+        return Result.ok(agents.stream()
+                .map(agent -> toListItem(agent, agentService.fromSnapshot(agent.getPublishedSnapshotJson())))
+                .toList());
+    }
+
+    /**
+     * 获取并校验当前登录账号。
+     *
+     * @return 当前登录账号
+     * @throws BusinessException 登录信息失效时抛出
+     */
+    protected LoginAccount requireCurrentAccount() {
+        LoginAccount account = SaTokenUtil.getLoginAccount();
+        if (account == null || account.getTenantId() == null) {
+            throw new BusinessException("当前登录状态失效，请重新登录后再试");
+        }
+        return account;
+    }
+
+    /**
+     * 将已发布快照转换为最小用户端列表项。
+     *
+     * @param liveAgent 当前 Agent 记录
+     * @param publishedAgent 已发布 Agent 快照
+     * @return 用户端列表项
+     */
+    private UcAgentListItemVo toListItem(Agent liveAgent, Agent publishedAgent) {
+        return new UcAgentListItemVo(
+                liveAgent.getId(),
+                publishedAgent.getName(),
+                publishedAgent.getDescription(),
+                publishedAgent.getAvatar()
+        );
+    }
+}

easyflow-api/easyflow-api-usercenter/src/main/java/tech/easyflow/usercenter/model/agent/UcAgentListItemVo.java

@@ -0,0 +1,65 @@
+package tech.easyflow.usercenter.model.agent;
+
+import java.math.BigInteger;
+
+/**
+ * 用户中心已发布 Agent 列表项。
+ */
+public class UcAgentListItemVo {
+
+    private final BigInteger id;
+    private final String name;
+    private final String description;
+    private final String avatar;
+
+    /**
+     * 创建 Agent 列表项。
+     *
+     * @param id Agent ID
+     * @param name Agent 名称
+     * @param description Agent 描述
+     * @param avatar Agent 头像
+     */
+    public UcAgentListItemVo(BigInteger id, String name, String description, String avatar) {
+        this.id = id;
+        this.name = name;
+        this.description = description;
+        this.avatar = avatar;
+    }
+
+    /**
+     * 获取 Agent ID。
+     *
+     * @return Agent ID
+     */
+    public BigInteger getId() {
+        return id;
+    }
+
+    /**
+     * 获取 Agent 名称。
+     *
+     * @return Agent 名称
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * 获取 Agent 描述。
+     *
+     * @return Agent 描述
+     */
+    public String getDescription() {
+        return description;
+    }
+
+    /**
+     * 获取 Agent 头像。
+     *
+     * @return Agent 头像
+     */
+    public String getAvatar() {
+        return avatar;
+    }
+}