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).

openspec/specs/user-profile/.pi-map.md

@@ -0,0 +1,19 @@
+# openspec/specs/user-profile
+dir: openspec/specs/user-profile
+
+index: openspec/specs/user-profile/.pi-map.index.md
+
+## role
+Defines functional specifications for user profile management capabilities including retrieval, updates, and local avatar storage
+## files
+- spec.md | Defines functional specifications for a user profile management system including profile retrieval, updates, and local avatar storage | dep: auth-oauth, User database model, pytest, mypy, ruff, npm/typecheck, npm/lint
+## arch
+Specification-driven documentation pattern using markdown-based requirements definition without implementation code
+## tags
+profile, npm, spec, defines, functional, specifications, user, management
+## symbols
+-
+## workflows
+-
+## dirty
+-