fix(admin): correct logs sorting by datetime with milliseconds

- Change sortField from datetime to datetime_raw for proper chronological sorting
- Add sortField attribute to 'Date and time' column to show sort indicator
- Remove sorting from 'Level' and 'Channel' columns
- Add information about displaying last 100 events

frontend/admin/src/components/LogsViewer.vue

@@ -9,7 +9,7 @@
       showGridlines
       stripedRows
       size="small"
-      sortField="datetime"
+      sortField="datetime_raw"
       :sortOrder="-1"
       removableSort
       paginatorTemplate="FirstPageLink PrevPageLink PageLinks NextPageLink LastPageLink CurrentPageReport RowsPerPageDropdown"
@@ -17,6 +17,7 @@
     >
       <template #header>
         <div class="tw:flex tw:items-center tw:justify-between tw:gap-2">
+          <span class="tw:text-sm tw:text-gray-600">Выводятся последние 100 событий</span>
           <Button
             icon="fa fa-refresh"
             @click="logs.fetchLogsFromServer()"
@@ -41,14 +42,14 @@
         </template>
       </Column>
 
-      <Column field="datetime" header="Дата и время" sortable style="min-width: 180px">
+      <Column field="datetime" header="Дата и время" sortable sortField="datetime_raw" style="min-width: 180px">
         <template #body="{ data }">
           <span v-if="data.datetime">{{ data.datetime }}</span>
           <span v-else class="tw:text-gray-400">—</span>
         </template>
       </Column>
 
-      <Column field="level" header="Уровень" sortable style="min-width: 100px">
+      <Column field="level" header="Уровень" style="min-width: 100px">
         <template #body="{ data }">
           <Badge
             v-if="data.level"
@@ -59,7 +60,7 @@
         </template>
       </Column>
 
-      <Column field="channel" header="Канал" sortable style="min-width: 120px">
+      <Column field="channel" header="Канал" style="min-width: 120px">
         <template #body="{ data }">
           <span v-if="data.channel">{{ data.channel }}</span>
           <span v-else class="tw:text-gray-400">—</span>