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openspec/changes/archive/2026-05-22-cloudflare-tunnel-instances-superseded/.pi-map.md

@@ -0,0 +1,22 @@
+# openspec/changes/archive/2026-05-22-cloudflare-tunnel-instances-superseded
+dir: openspec/changes/archive/2026-05-22-cloudflare-tunnel-instances-superseded
+
+index: openspec/changes/archive/2026-05-22-cloudflare-tunnel-instances-superseded/.pi-map.index.md
+
+## role
+Archive of a superseded 2026 proposal to migrate tool instance exposure from API proxy to Cloudflare Tunnel with unique HTTPS subdomains.
+## files
+- .openspec.yaml | Defines an OpenAPI specification configuration file with schema type and creation date metadata
+- design.md | Architecture design document for replacing an API proxy with Cloudflare Tunnel to expose tool instances via unique HTTPS subdomains | dep: Cloudflare REST API, cloudflared, Docker, httpx, Cloudflare DNS
+- proposal.md | Proposes replacing an API proxy endpoint with Cloudflare Tunnel integration to provide direct public URLs for tool instances | dep: FastAPI, Cloudflare API, cloudflared, Docker, Cloudflare Tunnel
+- tasks.md | Project task list for migrating a proxy-based application access system to Cloudflare Tunnel-based public URLs | dep: docker-compose.traefik.yml, cloudflared, Cloudflare API, Alembic, FastAPI, React/TypeScript frontend
+## arch
+Document-driven design process capturing progressive refinement from proposal → design → tasks, with OpenAPI spec configuration for API contract definition.
+## tags
+design, proxy, cloudflare, tunnel, cloudflared, docker, .openspec, replacing
+## symbols
+-
+## workflows
+-
+## dirty
+-