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/2026-05-25-mobile-pages-overhaul/.pi-map.md

@@ -0,0 +1,22 @@
+# openspec/changes/archive/2026-05-25-mobile-pages-overhaul
+dir: openspec/changes/archive/2026-05-25-mobile-pages-overhaul
+
+index: openspec/changes/archive/2026-05-25-mobile-pages-overhaul/.pi-map.index.md
+
+## role
+Archive of a 2026 mobile UI/UX overhaul specification for adapting three complex desktop split-pane interfaces to responsive mobile-first designs while preserving desktop experiences.
+## files
+- .openspec.yaml | Defines an OpenSpec configuration file specifying a spec-driven schema with a creation date.
+- design.md | Design document specifying mobile-first responsive UI adaptations for three desktop split-pane interfaces (Tool Workshop, Config Profiles, Repo Workspace) while preserving existing desktop experiences.
+- proposal.md | Proposes mobile-first redesigns for complex configuration and workspace pages while preserving existing desktop layouts
+- tasks.md | Project task checklist tracking mobile UI/UX implementation progress across navigation, list-detail views, tool workshop, config profiles, repo workspace, and testing
+## arch
+Spec-driven design documentation using OpenSpec schema with structured markdown files separating design rationale (design.md), formal proposal (proposal.md), and implementation tracking (tasks.md) across a phased checklist workflow.
+## tags
+design, mobile, desktop, workspace, configuration, specifying, .openspec, first
+## symbols
+-
+## workflows
+-
+## dirty
+-