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/guides/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: docs/guides
 
 ## role
-Provides user-facing documentation for advanced configuration features
+Provides user-facing documentation for advanced configuration features of the platform.
 ## parent
 index: docs/.pi-map.index.md
 map: docs/.pi-map.md

docs/guides/.pi-map.md

@@ -4,11 +4,11 @@ dir: docs/guides
 index: docs/guides/.pi-map.index.md
 
 ## role
-Provides user-facing documentation for advanced configuration features
+Provides user-facing documentation for advanced configuration features of the platform.
 ## files
 - config-profiles-git-mounts.md | Documents how to mount files and directories from git repositories into tool instances via config profiles | dep: Git, container runtime (bind mounts), glob pattern matching
 ## arch
-Simple documentation-as-code with markdown files organized by feature topic
+Flat markdown documentation structure with topic-specific guides.
 ## tags
 git, config, profiles, mounts, documents, mount, directories, repositories
 ## symbols