feat(inbox): 素材持久化 CRUD — 数据库表 + API + 前端接入

- 新增 materials 表（id/projectId/description/associatedDate/status/createdAt/updatedAt）
- 新增 4 个后端 API 路由（list/create/get/delete）+ 13 个测试
- 新增 use-materials hooks（TanStack Query）
- 收集箱页面重构为三层架构（InboxPage + MaterialSidebar + MaterialDetailPanel）
- MaterialCard: Popconfirm 删除确认 + 粗粒度时间格式
- MaterialContent: 展示状态标签 + createdAt
- 更新开发文档 backend.md / frontend.md

src/web/features/inbox/components/AddMaterialModal.tsx

@@ -1,11 +1,11 @@
 import { App as AntApp, DatePicker, Form, Input, Modal } from "antd";
 import dayjs from "dayjs";
-import { useEffect } from "react";
+import { useEffect, useState } from "react";
 
-import type { Material } from "../types";
+import type { CreateMaterialRequest, Material } from "../types";
 
 interface AddMaterialModalProps {
-  onAdd: (material: Material) => void;
+  onAdd: (body: CreateMaterialRequest) => Promise<Material>;
   onOpenChange: (open: boolean) => void;
   open: boolean;
 }
@@ -18,26 +18,34 @@ interface FormValues {
 export function AddMaterialModal({ onAdd, onOpenChange, open }: AddMaterialModalProps) {
   const { message } = AntApp.useApp();
   const [form] = Form.useForm<FormValues>();
+  const [submitting, setSubmitting] = useState(false);
 
   useEffect(() => {
     if (!open) return;
     form.resetFields();
   }, [form, open]);
 
-  const handleFinish = (values: FormValues) => {
-    const material: Material = {
+  const handleFinish = async (values: FormValues) => {
+    const body: CreateMaterialRequest = {
       associatedDate: values.associatedDate.format("YYYY-MM-DD"),
-      createdAt: new Date().toISOString(),
       description: values.description,
-      id: crypto.randomUUID(),
     };
-    onAdd(material);
-    message.success("素材已添加");
-    onOpenChange(false);
+
+    setSubmitting(true);
+    try {
+      await onAdd(body);
+      message.success("素材已添加");
+      onOpenChange(false);
+    } catch (e: unknown) {
+      message.error(`添加失败：${e instanceof Error ? e.message : "未知错误"}`);
+    } finally {
+      setSubmitting(false);
+    }
   };
 
   return (
     <Modal
+      confirmLoading={submitting}
       destroyOnHidden
       okText="确定"
       onCancel={() => onOpenChange(false)}

src/web/features/inbox/components/MaterialCard.tsx

@@ -1,10 +1,8 @@
 import { DeleteOutlined } from "@ant-design/icons";
-import { Button, Card, Flex, Typography } from "antd";
+import { Button, Card, Flex, Popconfirm, Typography } from "antd";
 
 import type { Material } from "../types";
 
-import { formatRelativeTime } from "../../../shared/utils/time";
-
 interface MaterialCardProps {
   material: Material;
   onDelete: () => void;
@@ -12,26 +10,49 @@ interface MaterialCardProps {
   selected: boolean;
 }
 
-export function MaterialCard({ material, onDelete, onSelect, selected }: MaterialCardProps) {
+export function MaterialCard({ material, onDelete, onSelect }: MaterialCardProps) {
   return (
-    <Card className={selected ? "app-inbox-card-selected" : undefined} hoverable onClick={onSelect} size="small">
+    <Card hoverable={false} onClick={onSelect} size="small">
       <Typography.Paragraph ellipsis={{ rows: 3 }}>{material.description}</Typography.Paragraph>
       <Flex align="center" justify="space-between">
-        <Typography.Text type="secondary">
-          {material.associatedDate} · {formatRelativeTime(material.createdAt)}
-        </Typography.Text>
-        <Button
-          aria-label="删除"
-          danger
-          icon={<DeleteOutlined />}
-          onClick={(e) => {
-            e.stopPropagation();
+        <Typography.Text type="secondary">{formatMaterialTime(material.createdAt)}</Typography.Text>
+        <Popconfirm
+          description="删除后不可恢复"
+          okButtonProps={{ danger: true }}
+          okText="删除"
+          onCancel={(e) => e?.stopPropagation()}
+          onConfirm={(e) => {
+            e?.stopPropagation();
             onDelete();
           }}
-          size="small"
-          type="text"
-        />
+          title="确认删除该素材？"
+        >
+          <Button
+            aria-label="删除"
+            danger
+            icon={<DeleteOutlined />}
+            onClick={(e) => e.stopPropagation()}
+            size="small"
+            type="text"
+          />
+        </Popconfirm>
       </Flex>
     </Card>
   );
 }
+
+function formatMaterialTime(timestamp: string, now = new Date()): string {
+  const time = new Date(timestamp);
+  const diffMs = now.getTime() - time.getTime();
+  if (diffMs < 60_000) return "刚刚";
+
+  const today = new Date(now.getFullYear(), now.getMonth(), now.getDate());
+  const yesterday = new Date(today.getTime() - 86_400_000);
+  const timeDate = new Date(time.getFullYear(), time.getMonth(), time.getDate());
+
+  if (timeDate.getTime() >= today.getTime()) return "今天";
+  if (timeDate.getTime() >= yesterday.getTime()) return "昨天";
+  const mm = String(time.getMonth() + 1).padStart(2, "0");
+  const dd = String(time.getDate()).padStart(2, "0");
+  return `${time.getFullYear()}-${mm}-${dd}`;
+}

src/web/features/inbox/components/MaterialContent.tsx

@@ -1,21 +1,21 @@
-import { Card, Descriptions, Empty, Typography } from "antd";
+import { Card, Descriptions, Tag, Typography } from "antd";
 
 import type { Material } from "../types";
 
 import { formatRelativeTime } from "../../../shared/utils/time";
 
 interface MaterialContentProps {
-  material: Material | null;
+  material: Material;
 }
 
+const STATUS_MAP: Record<string, { color: string; label: string }> = {
+  approved: { color: "green", label: "已通过" },
+  discarded: { color: "red", label: "已放弃" },
+  pending: { color: "gold", label: "待审核" },
+};
+
 export function MaterialContent({ material }: MaterialContentProps) {
-  if (!material) {
-    return (
-      <div className="app-inbox-content">
-        <Empty description="请在左侧选择素材" />
-      </div>
-    );
-  }
+  const statusInfo = STATUS_MAP[material.status] ?? { color: "default", label: material.status };
 
   return (
     <div className="app-inbox-content">
@@ -23,6 +23,9 @@ export function MaterialContent({ material }: MaterialContentProps) {
       <Card>
         <Typography.Paragraph>{material.description}</Typography.Paragraph>
         <Descriptions column={1} size="small">
+          <Descriptions.Item label="状态">
+            <Tag color={statusInfo.color}>{statusInfo.label}</Tag>
+          </Descriptions.Item>
           <Descriptions.Item label="关联时间">{material.associatedDate}</Descriptions.Item>
           <Descriptions.Item label="创建时间">{formatRelativeTime(material.createdAt)}</Descriptions.Item>
         </Descriptions>

src/web/features/inbox/components/MaterialDetailPanel.tsx

@@ -0,0 +1,51 @@
+import { Empty, Result, Spin } from "antd";
+
+import { useMaterial } from "../../../shared/hooks/use-materials";
+import { MaterialContent } from "./MaterialContent";
+
+interface MaterialDetailPanelProps {
+  materialId: null | string;
+  projectId: string;
+}
+
+export function MaterialDetailPanel({ materialId, projectId }: MaterialDetailPanelProps) {
+  if (!materialId) {
+    return (
+      <div className="app-inbox-content">
+        <Empty description="请在左侧选择素材" />
+      </div>
+    );
+  }
+
+  return <MaterialDetailPanelInner materialId={materialId} projectId={projectId} />;
+}
+
+function MaterialDetailPanelInner({ materialId, projectId }: MaterialDetailPanelProps) {
+  const { data, error, isLoading } = useMaterial({ materialId, projectId });
+
+  if (isLoading) {
+    return (
+      <div className="app-inbox-content">
+        <Spin />
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="app-inbox-content">
+        <Result subTitle="加载素材详情失败" />
+      </div>
+    );
+  }
+
+  if (!data) {
+    return (
+      <div className="app-inbox-content">
+        <Empty description="请在左侧选择素材" />
+      </div>
+    );
+  }
+
+  return <MaterialContent material={data} />;
+}

src/web/features/inbox/components/MaterialList.tsx

@@ -1,11 +1,12 @@
 import { PlusOutlined } from "@ant-design/icons";
-import { Button, Empty } from "antd";
+import { Button, Empty, Spin } from "antd";
 
 import type { Material } from "../types";
 
 import { MaterialCard } from "./MaterialCard";
 
 interface MaterialListProps {
+  loading: boolean;
   materials: readonly Material[];
   onAddClick: () => void;
   onDelete: (id: string) => void;
@@ -13,14 +14,16 @@ interface MaterialListProps {
   selectedId: null | string;
 }
 
-export function MaterialList({ materials, onAddClick, onDelete, onSelect, selectedId }: MaterialListProps) {
+export function MaterialList({ loading, materials, onAddClick, onDelete, onSelect, selectedId }: MaterialListProps) {
   return (
     <div className="app-inbox-sidebar">
       <Button block icon={<PlusOutlined />} onClick={onAddClick} type="primary">
         新增素材
       </Button>
       <div className="app-inbox-list">
-        {materials.length === 0 ? (
+        {loading ? (
+          <Spin />
+        ) : materials.length === 0 ? (
           <Empty description="暂无素材" image={Empty.PRESENTED_IMAGE_SIMPLE} />
         ) : (
           materials.map((material) => (

src/web/features/inbox/components/MaterialSidebar.tsx

@@ -0,0 +1,44 @@
+import { Result } from "antd";
+
+import { useDeleteMaterial, useMaterialList } from "../../../shared/hooks/use-materials";
+import { MaterialList } from "./MaterialList";
+
+interface MaterialSidebarProps {
+  onAddClick: () => void;
+  onDelete: (id: string) => void;
+  onSelect: (id: string) => void;
+  projectId: string;
+  selectedId: null | string;
+}
+
+export function MaterialSidebar({ onAddClick, onDelete, onSelect, projectId, selectedId }: MaterialSidebarProps) {
+  const { data, error, isLoading, refetch } = useMaterialList(projectId);
+  const deleteMutation = useDeleteMaterial(projectId);
+
+  const handleDelete = (id: string) => {
+    void deleteMutation.mutate({ materialId: id, projectId }, { onSuccess: () => onDelete(id) });
+  };
+
+  if (error) {
+    return (
+      <div className="app-inbox-sidebar">
+        <Result
+          extra={<button onClick={() => void refetch()}>重试</button>}
+          status="error"
+          subTitle="加载素材列表失败"
+        />
+      </div>
+    );
+  }
+
+  return (
+    <MaterialList
+      loading={isLoading}
+      materials={data?.items ?? []}
+      onAddClick={onAddClick}
+      onDelete={handleDelete}
+      onSelect={onSelect}
+      selectedId={selectedId}
+    />
+  );
+}