修复文档列表移动分类功能的 bug

src/main/java/com/wok/supportbot/controller/DocumentController.java

@@ -542,14 +542,15 @@ public class DocumentController {
 
     /**
      * P1-2.2: 批量移动文档分类
-     * body: {ids: [Long], categoryId: Long}
+     * body: {ids: [Long], categoryId: Long | String}
+     * 注意：categoryId 兼容 String 类型，避免前端雪花 ID 经 parseInt 丢失精度
      */
     @PostMapping("/document/batch/move")
     @PreAuthorize("hasAnyRole('admin','kb_operator')")
     public ResponseEntity<Map<String, Object>> batchMoveDocuments(@RequestBody Map<String, Object> body) {
         try {
             List<Long> ids = extractIds(body);
-            Long categoryId = body.get("categoryId") != null ? ((Number) body.get("categoryId")).longValue() : 0L;
+            Long categoryId = extractCategoryId(body);
             if (ids.isEmpty()) {
                 return ResponseEntity.badRequest().body(Map.of(
                         "success", false,
@@ -557,9 +558,18 @@ public class DocumentController {
                 ));
             }
             int updatedCount = documentService.batchMoveDocuments(ids, categoryId);
+            int requestedCount = ids.size();
+            String message;
+            if (updatedCount == requestedCount) {
+                message = String.format("已将 %d 个文档移动到目标分类", updatedCount);
+            } else {
+                message = String.format("移动完成：成功 %d 个，%d 个文档未找到",
+                        updatedCount, requestedCount - updatedCount);
+            }
             return ResponseEntity.ok(Map.of(
                     "success", true,
-                    "message", String.format("已将 %d 个文档移动到目标分类", updatedCount)
+                    "message", message,
+                    "updatedCount", updatedCount
             ));
         } catch (Exception e) {
             return ResponseEntity.status(500).body(Map.of(
@@ -569,6 +579,24 @@ public class DocumentController {
         }
     }
 
+    /**
+     * 从请求体中提取 categoryId，兼容 Number 和 String 两种类型
+     * 前端雪花 ID 超出 JS Number.MAX_SAFE_INTEGER，需以 String 传递以避免精度丢失
+     */
+    private Long extractCategoryId(Map<String, Object> body) {
+        Object raw = body.get("categoryId");
+        if (raw == null) {
+            return 0L;
+        }
+        if (raw instanceof Number) {
+            return ((Number) raw).longValue();
+        }
+        if (raw instanceof String str) {
+            return str.isEmpty() ? 0L : Long.parseLong(str);
+        }
+        return 0L;
+    }
+
     // ==================== 语义搜索 ====================
 
     /**

src/main/resources/static/components/DocList.js

@@ -398,7 +398,8 @@ export default {
       const catName = catId === '0' ? '未分类' : store.getCategoryName(catId)
       if (!confirm(`确定将选中的 ${ids.length} 个文档移动到「${catName}」？`)) return
       try {
-        const json = await batchMoveDocuments(ids, catId === '0' ? 0 : parseInt(catId))
+        // 注意：不可用 parseInt，雪花 ID 超出 Number.MAX_SAFE_INTEGER 会丢失精度
+        const json = await batchMoveDocuments(ids, catId === '0' ? 0 : catId)
         if (json.success) {
           toast(json.message, 'success')
           selectedIds.value = new Set()