feat: 新增IM联系我们字典配置，优化用户搜索与邀请绑定功能

1. 优化IM用户列表搜索逻辑，支持长数字用户ID精确匹配
2. 修复前端雪花ID精度丢失问题，改用字符串传输用户ID
3. 新增邀请码批量绑定用户功能，支持搜索绑定指定用户
4. 新增字典配置接口，新增联系我们字典SQL脚本
5. 完善字典数据变更事件推送，优化弹窗关闭与页面刷新逻辑

server/internal/logic/sys/im_invite.go

@@ -116,7 +116,7 @@ func (s *sSysImInvite) Create(ctx context.Context, in *sysin.ImInviteCreateInp)
 	expiresAt := in.ExpiresAt.Time.UTC().Round(time.Millisecond)
 	var item imInviteCodeResponse
 	if key := strings.TrimSpace(in.IdempotencyKey); key != "" {
-		batch, codes, createErr := createInviteBatch(ctx, db, scope.TenantId, scope.OperatorId, 1, expiresAt, in.Remark, key)
+		batch, codes, createErr := createInviteBatch(ctx, db, scope.TenantId, scope.OperatorId, 1, expiresAt, in.Remark, key, 0, "")
 		if createErr != nil {
 			err = createErr
 		} else if len(codes) > 0 {
@@ -150,15 +150,27 @@ func (s *sSysImInvite) BatchCreate(ctx context.Context, in *sysin.ImInviteBatchC
 	if err != nil {
 		return nil, err
 	}
+	var boundUserLabel string
+	if in.UserId > 0 {
+		tenant, terr := resolveImAdminTenant(ctx, scope.TenantId)
+		if terr != nil {
+			return nil, terr
+		}
+		label, lerr := inviteBoundUserLabel(ctx, tenant, in.UserId)
+		if lerr != nil {
+			return nil, lerr
+		}
+		boundUserLabel = label
+	}
 	key := strings.TrimSpace(in.IdempotencyKey)
-	batch, _, err := createInviteBatch(ctx, db, scope.TenantId, scope.OperatorId, in.Quantity, in.ExpiresAt.Time.UTC().Round(time.Millisecond), in.Remark, key)
+	batch, _, err := createInviteBatch(ctx, db, scope.TenantId, scope.OperatorId, in.Quantity, in.ExpiresAt.Time.UTC().Round(time.Millisecond), in.Remark, key, in.UserId, boundUserLabel)
 	result := "success"
 	if err != nil {
 		result = "failed"
 	} else {
 		res = convertInviteBatch(batch)
 	}
-	_ = writeImAdminAudit(ctx, scope.TenantId, "invite_batch_create", "invite_batch", batchID(batch), result, g.Map{"quantity": in.Quantity, "expiresAt": in.ExpiresAt, "remark": in.Remark})
+	_ = writeImAdminAudit(ctx, scope.TenantId, "invite_batch_create", "invite_batch", batchID(batch), result, g.Map{"quantity": in.Quantity, "expiresAt": in.ExpiresAt, "remark": in.Remark, "boundUserId": in.UserId})
 	return res, err
 }
 
@@ -358,7 +370,7 @@ func createSingleInvite(ctx context.Context, db gdb.DB, tenantID, operatorID int
 	return imInviteCodeResponse{}, gerror.New("无法生成不重复的邀请码，请重试")
 }
 
-func createInviteBatch(ctx context.Context, db gdb.DB, tenantID, operatorID int64, quantity int, expiresAt time.Time, remark, key string) (*imInviteBatchResponse, []imInviteCodeResponse, error) {
+func createInviteBatch(ctx context.Context, db gdb.DB, tenantID, operatorID int64, quantity int, expiresAt time.Time, remark, key string, boundUserID int64, boundUserLabel string) (*imInviteBatchResponse, []imInviteCodeResponse, error) {
 	if existing, err := getInviteBatch(ctx, db, tenantID, "b.idempotency_key=?", key); err == nil {
 		if !sameInviteBatch(existing, quantity, expiresAt, remark) {
 			return nil, nil, gerror.New("幂等键已被其他批量生成请求使用")
@@ -402,11 +414,16 @@ func createInviteBatch(ctx context.Context, db gdb.DB, tenantID, operatorID int6
 			}
 			for i := range codes {
 				if _, txErr := tx.Exec(`INSERT INTO im_registration_invite_codes
-					(id,tenant_id,batch_id,code,status,expires_at,max_uses,usage_count,last_used_at,created_by,remark,created_at,updated_at)
-					VALUES(?,?,?,?,'active',?,0,0,NULL,?,?,?,?)`, codes[i].ID, tenantID, batchID, codes[i].Code, expiresAt, operatorID, remark, now, now); txErr != nil {
+					(id,tenant_id,batch_id,code,status,expires_at,max_uses,usage_count,last_used_at,created_by,remark,created_at,updated_at,bound_user_id,bound_user_label)
+					VALUES(?,?,?,?,'active',?,0,0,NULL,?,?,?,?,?,?)`, codes[i].ID, tenantID, batchID, codes[i].Code, expiresAt, operatorID, remark, now, now, boundUserID, boundUserLabel); txErr != nil {
 					return txErr
 				}
 				codes[i].TenantID, codes[i].Status, codes[i].ExpiresAt, codes[i].CreatedBy, codes[i].Remark, codes[i].CreatedAt = tenantID, "active", expiresAt, operatorID, remark, now
+				if boundUserID > 0 {
+					id := boundUserID
+					codes[i].BoundUserID = &id
+					codes[i].BoundUserLabel = boundUserLabel
+				}
 			}
 			return nil
 		})