feat: KOC 资源导入后自动爬取主页资料并调用 LLM 打标签

- 新增 structured_text_process 打标客户端（文本构造、标签解析清洗、MCP 调用）
- 写库后后台打标（tagUntaggedAccounts），单条新增 / 批量导入 / 每日补全三个入口统一
- 标签只补空，UPDATE 带 tags 为空守卫，不覆盖已有标签
- 新增 AI_TAGGING_TOOL 配置项（留空关闭），更新配置示例与文档
- 新增 16 个打标测试用例，全量 131 个测试通过

app/api/resources-import/route.ts

@@ -4,7 +4,7 @@ import {
   parseResourceImportFile,
   RESOURCE_IMPORT_MAX_BYTES,
   RESOURCE_IMPORT_MAX_ROWS,
-  resourceImportMissingFields,
+  needsResourceEnrichment,
   type ResourceImportRow,
 } from "../../../lib/resource-import";
 import {
@@ -12,6 +12,7 @@ import {
   enrichRows,
   loadAccounts,
   mergeExistingFields,
+  tagUntaggedAccounts,
   writeAnalyzedRows,
   RESOURCE_IMPORT_SYNC_ENRICH_ROWS,
   type AnalyzedRow,
@@ -49,7 +50,7 @@ function deferredEnrichmentCount(rows: ResourceImportRow[]) {
     (row) =>
       row.errors.length === 0 &&
       row.profileUrl &&
-      resourceImportMissingFields(row).length > 0,
+      needsResourceEnrichment(row),
   ).length;
 }
 
@@ -60,7 +61,7 @@ async function enrichImportedRowsInBackground(rows: ResourceImportRow[]) {
     (row) =>
       row.errors.length === 0 &&
       row.profileUrl &&
-      resourceImportMissingFields(row).length > 0,
+      needsResourceEnrichment(row),
   );
   if (missingRows.length === 0) return;
   const enriched = await enrichRows(missingRows, accounts.results);
@@ -132,6 +133,10 @@ export async function POST(request: Request) {
       );
     }
     await writeAnalyzedRows(importableRows);
+    runInBackground(
+      tagUntaggedAccounts(importableRows),
+      "resource account tagging",
+    );
     if (deferredEnrichment > 0) {
       const importableSourceRows = rows.filter((row) =>
         importableRowNumbers.has(row.rowNumber),