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

kb/index.md

@@ -13,11 +13,11 @@ The page tables live in a generated `INDEX.md` inside each collection, linked be
 
 ## Statistics
 
-- **Total Pages:** 184
+- **Total Pages:** 185
 - **Comparisons:** 1
 - **Concepts:** 80
 - **Entities:** 72
-- **Gtd:** 2
+- **Gtd:** 3
 - **Sources:** 29
 - **Last Updated:** 2026-09-30
 
@@ -30,7 +30,7 @@ The page tables live in a generated `INDEX.md` inside each collection, linked be
 | `comparisons/` | 1 | [comparisons/INDEX.md](comparisons/INDEX.md) |
 | `concepts/` | 80 | [concepts/INDEX.md](concepts/INDEX.md) |
 | `entities/` | 72 | [entities/INDEX.md](entities/INDEX.md) |
-| `gtd/` | 2 | [gtd/INDEX.md](gtd/INDEX.md) |
+| `gtd/` | 3 | [gtd/INDEX.md](gtd/INDEX.md) |
 | `sources/` | 29 | [sources/INDEX.md](sources/INDEX.md) |
 
 ### concepts/
@@ -58,7 +58,7 @@ The page tables live in a generated `INDEX.md` inside each collection, linked be
 
 | Area | Pages | Index |
 |------|------:|-------|
-| Technik | 2 | [gtd/INDEX.md#technik](gtd/INDEX.md#technik) |
+| Technik | 3 | [gtd/INDEX.md#technik](gtd/INDEX.md#technik) |
 
 ### sources/