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/changes/archive/2025-05-18-git-repo-management/.pi-map.md

@@ -0,0 +1,22 @@
+# openspec/changes/archive/2025-05-18-git-repo-management
+dir: openspec/changes/archive/2025-05-18-git-repo-management
+
+index: openspec/changes/archive/2025-05-18-git-repo-management/.pi-map.index.md
+
+## role
+Defines a git repository management feature specification for creating, listing, cloning, and deleting bare git repositories within projects.
+## files
+- .openspec.yaml | Defines an OpenSpec configuration file with schema type and creation date metadata
+- design.md | Design document specifying a bare git repository management system for projects with create/list/clone/delete operations | dep: git, filesystem, database, API, Dockerfile
+- proposal.md | Proposes a feature to add git repository creation, cloning, and management capabilities within existing projects | dep: project-management, git, backend API, frontend UI, disk storage
+- tasks.md | Project task checklist tracking implementation of a Git repository management feature across backend API, frontend UI, and project integration with verification steps.
+## arch
+Specification-driven development using OpenSpec schema with phased task tracking (backend API → frontend UI → project integration) across design/proposal/task documents.
+## tags
+git, management, design, repository, project, creation, .openspec, projects
+## symbols
+-
+## workflows
+-
+## dirty
+-