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/schemas/config/.pi-map.md

@@ -0,0 +1,30 @@
+# apps/api/src/schemas/config
+dir: apps/api/src/schemas/config
+
+index: apps/api/src/schemas/config/.pi-map.index.md
+
+## role
+Provides Pydantic validation schemas for configuration profile API endpoints, ensuring data integrity for mounts, git URLs, UUIDs, and file paths.
+## files
+- __init__.py | Re-exports Pydantic schemas for configuration profile operations from a submodule to provide a clean public API. | dep: src.schemas.config.config_profile
+- config_profile.py | Defines Pydantic request/response schemas for config profile API operations with validation for mounts, git URLs, UUIDs, and file paths. | exp: class:GitMountMapping, class:GitMountItem, class:MountItem, class:ConfigProfileCreate, class:ConfigProfileUpdate, class:ConfigProfileIncludeUpdate, class:ConfigProfileResponse, class:DefaultProfilesUpdate, class:ValidateGitUrlRequest, class:ValidateGitUrlResponse, func:_validate_uuid(v: str | None) → str | None, call:uuid.UUID, raise:ValueError | dep: uuid, pydantic, src.api.shared_validators
+## arch
+Simple schema-as-code pattern using Pydantic models with field validators; clean public API via explicit re-exports in `__init__.py`.
+## tags
+profile, config, git, mount, update, validate, response, item
+## symbols
+- GitMountMapping
+- GitMountItem
+- MountItem
+- ConfigProfileCreate
+- ConfigProfileUpdate
+- ConfigProfileIncludeUpdate
+- ConfigProfileResponse
+- DefaultProfilesUpdate
+## workflows
+- change config behavior
+  read: __init__.py, config_profile.py
+- change config config
+  read: config_profile.py
+## dirty
+-