Clarify missing research_propozycje source for documentation update

[Copilot]

The requested task was to fold content from research_propozycje into the repository documentation. During implementation, that source folder could not be found in the checked-out repo, adjacent workspace, or tracked Git history, so no documentation content was imported.

• What this PR covers

  • Verifies that research_propozycje is not present in the current repository snapshot.
  • Avoids inventing or backfilling documentation without a valid source folder.

• Current blocker

  • The documentation update is blocked on the missing source material.
  • Once the correct path, branch, or replacement source is provided, the relevant docs can be updated surgically.

• Evidence

  cd /home/runner/work/SpaceshipGame/SpaceshipGame
  find /home/runner/work -type d \( -iname '*research*' -o -iname '*propozycje*' \) | sort
  # result: only .github/skills/content-research-writer

Original prompt

dodaj do dokumentacji dane z folderu 'research_propozycje

Created from VS Code.