fix: demo corpus follows the decided project pages - three states, seed with their items, fixtures re-recorded (#156)

Files changed:
- CHANGES.md
- VERSION
- instructions/dev/tracker-testing.md
- kb/gtd/INDEX.md
- kb/gtd/technik/Aufgabenverwaltung mit Tracker-Anbindung.md
- kb/gtd/technik/Chemenu 8.0.0 - Installation und Windows.md
- kb/gtd/technik/Chemenu 8.0.0 freigeben.md
- kb/gtd/technik/Reproduktionslauf des Korpus.md
- kb/gtd/technik/Windows nativ unterstützen.md
- kb/index.md
- kb/log.md
- tools/chemenu/tests/fixtures/sp/MANIFEST.json
- tools/chemenu/tests/fixtures/sp/api/projects.json
- tools/chemenu/tests/fixtures/sp/api/tags.json
- tools/chemenu/tests/fixtures/sp/api/tasks.json
- tools/chemenu/tests/fixtures/sp/seed-backup.json
- tools/chemenu/tests/test_sp_recorded.py

VERSION

@@ -1 +1 @@
-8.0.0-beta.3
+8.0.0-beta.4