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/server/db/materials.ts

@@ -0,0 +1,107 @@
+import type Database from "bun:sqlite";
+
+import { desc, eq } from "drizzle-orm";
+
+import type { CreateMaterialRequest, Material, MaterialStatus } from "../../shared/api";
+import type { Logger } from "../logger";
+
+import { paginateQuery, wrap } from "./connection";
+import { materials, projects } from "./schema";
+
+export function createMaterial(
+  raw: Database,
+  projectId: string,
+  request: CreateMaterialRequest,
+  _logger: Logger,
+): { error: string; status: number } | { material: Material } {
+  const db = wrap(raw);
+  const project = db.select().from(projects).where(eq(projects.id, projectId)).get();
+  if (!project) return { error: "项目不存在", status: 404 };
+  if (project.status === "archived") return { error: "已归档项目不可操作", status: 409 };
+
+  const description = request.description.trim();
+  if (!description) return { error: "描述不能为空", status: 400 };
+
+  const dateRegex = /^\d{4}-\d{2}-\d{2}$/;
+  if (!dateRegex.test(request.associatedDate)) {
+    return { error: "associatedDate 格式错误，要求 YYYY-MM-DD", status: 400 };
+  }
+
+  const id = crypto.randomUUID();
+  const now = new Date().toISOString();
+
+  db.insert(materials)
+    .values({
+      associatedDate: request.associatedDate,
+      createdAt: now,
+      description,
+      id,
+      projectId,
+      status: "pending",
+      updatedAt: now,
+    })
+    .run();
+
+  const row = db.select().from(materials).where(eq(materials.id, id)).get();
+  return { material: toMaterial(row!) };
+}
+
+export function deleteMaterial(
+  raw: Database,
+  projectId: string,
+  materialId: string,
+  _logger: Logger,
+): { error: string; status: number } | { success: true } {
+  const db = wrap(raw);
+  const row = db.select().from(materials).where(eq(materials.id, materialId)).get();
+  if (!row) return { error: "素材不存在", status: 404 };
+  if (row.projectId !== projectId) return { error: "素材不属于该项目", status: 403 };
+
+  db.delete(materials).where(eq(materials.id, materialId)).run();
+  return { success: true };
+}
+
+export function getMaterial(
+  raw: Database,
+  projectId: string,
+  materialId: string,
+): { error: string; status: number } | { material: Material } {
+  const db = wrap(raw);
+  const row = db.select().from(materials).where(eq(materials.id, materialId)).get();
+  if (!row) return { error: "素材不存在", status: 404 };
+  if (row.projectId !== projectId) return { error: "素材不属于该项目", status: 403 };
+
+  return { material: toMaterial(row) };
+}
+
+export function listMaterials(
+  raw: Database,
+  projectId: string,
+  options: { page: number; pageSize: number; status?: MaterialStatus },
+): { items: Material[]; page: number; pageSize: number; total: number } {
+  const conditions = [eq(materials.projectId, projectId)];
+
+  if (options.status) {
+    conditions.push(eq(materials.status, options.status));
+  }
+
+  return paginateQuery(raw, materials, {
+    conditions,
+    mapRow: toMaterial,
+    orderBy: () => desc(materials.createdAt),
+    page: options.page,
+    pageSize: options.pageSize,
+  });
+}
+
+function toMaterial(row: typeof materials.$inferSelect): Material {
+  return {
+    associatedDate: row.associatedDate,
+    createdAt: row.createdAt,
+    description: row.description,
+    id: row.id,
+    projectId: row.projectId,
+    status: row.status,
+    updatedAt: row.updatedAt,
+  };
+}