chore: track all project map and index files

Add generated .pi-map.md and .pi-map.index.md files across the repository
so the project navigation maps are shared and versioned. These artifacts
are maintained by project_map_init/patch/validate and must be kept in
sync with source edits.

Note: .cache/ remains ignored (added in previous commit).

apps/api/src/services/git/.pi-map.index.md

@@ -0,0 +1,24 @@
+# apps/api/src/services/git (index)
+dir: apps/api/src/services/git
+
+## role
+Provides git repository operations for workspace management including cloning, authentication, and common git commands
+## parent
+index: apps/api/src/services/.pi-map.index.md
+map: apps/api/src/services/.pi-map.md
+## children
+-
+## files
+- __init__.py
+- clone.py
+- git_operations.py
+- git_service.py
+- operations.py
+## links
+index: apps/api/src/services/git/.pi-map.index.md
+map: apps/api/src/services/git/.pi-map.md
+## workflows
+- change git behavior
+  read: __init__.py, clone.py, git_operations.py
+## dirty
+-