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/public/.pi-map.index.md

@@ -0,0 +1,19 @@
+# apps/web/public (index)
+dir: apps/web/public
+
+## role
+Static HTML prototype for UI/UX validation and stakeholder review of the workspace dashboard design before React implementation.
+## parent
+index: apps/web/.pi-map.index.md
+map: apps/web/.pi-map.md
+## children
+-
+## files
+- preview.html
+## links
+index: apps/web/public/.pi-map.index.md
+map: apps/web/public/.pi-map.md
+## workflows
+-
+## dirty
+-

apps/web/public/.pi-map.md

@@ -0,0 +1,19 @@
+# apps/web/public
+dir: apps/web/public
+
+index: apps/web/public/.pi-map.index.md
+
+## role
+Static HTML prototype for UI/UX validation and stakeholder review of the workspace dashboard design before React implementation.
+## files
+- preview.html | Static HTML/CSS UI mockup for a "Headquarter" workspace dashboard with interactive page preview switching between Home, Projects, and Settings views. | dep: Google Fonts (Inter, IBM Plex Mono)
+## arch
+Vanilla HTML/CSS mockup with JavaScript-driven view switching, using CSS Grid/Flexbox layout and class-based DOM manipulation for interactive state transitions.
+## tags
+preview, static, html, css, mockup, headquarter, workspace, dashboard
+## symbols
+-
+## workflows
+-
+## dirty
+-