- Mark scheduled post as 'published' instead of deleting it when user clicks "Опубликовать сейчас", so it appears in the archive (parity with cron path)
- Surface VK warnings (e.g. photos posted as links when community token lacks photos right) in both the post-publish notification and the archive card
- Replace dead vkhost.github.io / VK Admin instructions with a community-token flow via group settings, since VK now blocks the old app (error 8)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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