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).

apps/web/src/components/features/tool/.pi-map.index.md

@@ -0,0 +1,25 @@
+# apps/web/src/components/features/tool (index)
+dir: apps/web/src/components/features/tool
+
+## role
+Provides UI components for managing container-based development tools, including instance lifecycle operations, manifest editing, and workspace-integrated tool launching.
+## parent
+index: apps/web/src/components/features/.pi-map.index.md
+map: apps/web/src/components/features/.pi-map.md
+## children
+-
+## files
+- instance-list.tsx
+- manifest-editor.tsx
+- start-tool-fab.tsx
+- start-tool-modal.tsx
+- tool-starter.tsx
+- tools-bottom-sheet.tsx
+## links
+index: apps/web/src/components/features/tool/.pi-map.index.md
+map: apps/web/src/components/features/tool/.pi-map.md
+## workflows
+- change tool behavior
+  read: instance-list.tsx, manifest-editor.tsx, start-tool-fab.tsx
+## dirty
+-