Admin panel does not work with trailingSlash: "always" in Astro js

Hi there, I've installed Astro through Keystatic CLI, then changed trailingslash configuration to "always", but admin panel still uses no trailing slash path. That shoots errors, 404s every now and then

Astro config

import { defineConfig } from 'astro/config';
import react from '@astrojs/react';
import markdoc from '@astrojs/markdoc';
import keystatic from '@keystatic/astro';

import mdx from "@astrojs/mdx";

// https://astro.build/config
export default defineConfig({
  trailingSlash: "always",
  integrations: [react(), markdoc(), keystatic(), mdx()],
  output: 'hybrid'
});

Keystatic config:

import { config, fields, collection } from '@keystatic/core';

export default config({
  storage: {
    kind: 'local',
  },
  collections: {
    posts: collection({
      label: 'Posts',
      slugField: 'title',
      path: 'src/content/posts/*',
      format: { contentField: 'content' },
      schema: {
        title: fields.slug({ name: {
           label: 'Title',
           description: 'modifies meta, SERP, OG',
           validation: {
            isRequired: true,
            length: { min: 58 } } 
          } }),
        description: fields.text({
          label: 'Description',
          multiline: true,
          validation: {
            isRequired: true,
            length: { min: 150, max: 160 } },
        }),
        pubDate: fields.date({ label: 'Pub Date', defaultValue: { kind: "today" }, validation: { isRequired: true } }),
        lastMod: fields.date({ label: 'Last mod', defaultValue: { kind: "today" }, validation: { isRequired: true }}),
        articleSection: fields.text({ label: 'Article section', description: 'modifies OG', defaultValue: 'retirement', validation: { isRequired: true }, }),
        content: fields.mdx ({ label: 'Content' }),
      },
    }),
    authors: collection({
      label: 'Authors',
      slugField: 'name',
      path: 'src/content/authors/*',
      schema: {
        name: fields.slug({ name: { label: 'Name' } }),
      }
    })
  },
});