chore: patch project maps after stale backend test cleanup

Regenerate .pi-map*.md artifacts for source changes in:
- apps/api/src/api/tool/tool_types_validation.py
- apps/api/src/schemas/tool/tool_type.py
- apps/api/tests/integration/test_tool_types_api_extended.py
- and all affected test files from backend-frontend refactoring cleanup

docs/development/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: docs/development
 
 ## role
-Developer onboarding and contribution standards documentation for the Headquarter full-stack web application project.
+Developer documentation hub providing setup, contribution, quality, and testing guidelines for the Headquarter full-stack project.
 ## parent
 index: docs/.pi-map.index.md
 map: docs/.pi-map.md