feat: 任务发布到企微客户群（企业群发）与资源库单条新增

- 任务中心新增「发布到企微群」：同步客户群清单（wecom_group_chats）、
  按群主分组创建企业群发任务（add_msg_template）、发送记录落库
  wecom_group_pushes，迁移 mysql/0009；lib/wecom-client.ts 补
  listCustomerGroupChats/createGroupMsgTemplate
- KOC 资源库支持单条新增：app/api/resources-insert + lib/resource-write，
  拆出资源写入公共逻辑供导入复用；0008 补合作方外部联系人字段
- 环境变量示例补企微凭证与 SEED_DEMO_DATA；next.config 增加
  allowedDevOrigins；CLAUDE.md 补充项目说明
- .gitignore 排除 .codegraph/ 与 .ipynb_checkpoints/

app/api/resources-insert/route.ts

@@ -0,0 +1,64 @@
+import { isManagerRequest, managerForbidden } from "../../../lib/user-auth";
+import { buildManualRow, type ManualResourceInput } from "../../../lib/resource-import";
+import {
+  analyzeRows,
+  enrichRows,
+  loadAccounts,
+  writeAnalyzedRows,
+} from "../../../lib/resource-write";
+
+type InsertResult = {
+  action: "create" | "update";
+  message: string;
+};
+
+export async function POST(request: Request) {
+  if (!(await isManagerRequest(request))) return managerForbidden();
+  try {
+    const payload = (await request.json()) as Partial<ManualResourceInput> & {
+      mode?: string;
+    };
+    const row = buildManualRow({
+      profileUrl: payload.profileUrl ?? "",
+      nickname: payload.nickname ?? "",
+      publicAccountId: payload.publicAccountId ?? "",
+      ipLocation: payload.ipLocation ?? "",
+      followers: payload.followers ?? "",
+      gender: payload.gender ?? "",
+      bio: payload.bio ?? "",
+      tags: payload.tags ?? "",
+      cooperationSource: payload.cooperationSource ?? "",
+    });
+    if (row.errors.length > 0) {
+      return Response.json(
+        { error: row.errors[0], errors: row.errors },
+        { status: 400 },
+      );
+    }
+
+    const accounts = await loadAccounts();
+    const enriched = await enrichRows([row], accounts.results);
+    const analyzed = analyzeRows(enriched, accounts.results).filter(
+      (item) => item.action !== "error",
+    );
+    if (analyzed.length === 0) {
+      return Response.json(
+        { error: "账号数据校验未通过，无法保存" },
+        { status: 400 },
+      );
+    }
+    await writeAnalyzedRows(analyzed);
+    const result = analyzed[0];
+    const outcome: InsertResult = {
+      action: result.action === "update" ? "update" : "create",
+      message:
+        result.action === "update"
+          ? `已更新账号 ${row.nickname || row.publicAccountId || "资料"}`
+          : `已新增账号 ${row.nickname || row.publicAccountId || "资料"}`,
+    };
+    return Response.json(outcome);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "保存失败";
+    return Response.json({ error: message }, { status: 400 });
+  }
+}