fix: disable native touch panning on mobile terminal and archive specs

- Change mobile terminal CSS to use touch-action: none and
  overscroll-behavior: none so the custom touch handler owns swipes
- Archive completed/partial OpenSpec specs to
  openspec/changes/archive/2026-06-14-completed-specs-archive/
- Regenerate project maps

Quality gates: npm run typecheck, npm run lint (apps/web)

openspec/changes/archive/2026-06-14-completed-specs-archive/mobile-navigation/.pi-map.md

@@ -0,0 +1,19 @@
+# 2026-06-14-completed-specs-archive/mobile-navigation
+dir: 2026-06-14-completed-specs-archive/mobile-navigation
+
+index: 2026-06-14-completed-specs-archive/mobile-navigation/.pi-map.index.md
+
+## role
+Archives completed mobile bottom navigation specification with grouped items and submenu behavior.
+## files
+- spec.md | Defines requirements for grouped bottom navigation with submenu behavior on mobile
+## arch
+Specification document archive with no active code architecture; serves as historical reference for mobile UI pattern requirements.
+## tags
+spec, defines, requirements, grouped, bottom, navigation, submenu, behavior
+## symbols
+-
+## workflows
+-
+## dirty
+-