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/2026-05-18-simplify-authentik-auth/.pi-map.md

@@ -0,0 +1,22 @@
+# openspec/changes/archive/2026-05-18-simplify-authentik-auth
+dir: openspec/changes/archive/2026-05-18-simplify-authentik-auth
+
+index: openspec/changes/archive/2026-05-18-simplify-authentik-auth/.pi-map.index.md
+
+## role
+Contains planning and design documents for migrating authentication from JWT tokens to session-based cookies with Authentik/OAuth2 integration.
+## files
+- .openspec.yaml | Defines an OpenSpec configuration file with schema type and creation date metadata
+- design.md | Design document for migrating a backend authentication system from JWT tokens to session cookies with OAuth2/Authentik integration | dep: Authentik (OAuth2), Redis (optional), backend database, frontend
+- proposal.md | Proposes simplifying an Authentik-based authentication system by replacing JWT/token-based auth with session-based cookies | dep: Authentik, OAuth2, session cookies, database user model, frontend auth state
+- tasks.md | Project task list for migrating an application from JWT/OIDC authentication to session-based authentication using Authentik | dep: Authentik, Alembic, python-jose, ruff, mypy, pytest
+## arch
+Documentation-driven architecture using OpenSpec configuration with structured design docs (design, proposal, tasks) following a formal specification and change-management pattern.
+## tags
+authentik, authentication, design, jwt, session, .openspec, migrating, system
+## symbols
+-
+## workflows
+-
+## dirty
+-