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/sessions-hub/.pi-map.md

@@ -0,0 +1,19 @@
+# 2026-06-14-completed-specs-archive/sessions-hub
+dir: 2026-06-14-completed-specs-archive/sessions-hub
+
+index: 2026-06-14-completed-specs-archive/sessions-hub/.pi-map.index.md
+
+## role
+Defines technical specifications for a "Sessions Hub" feature that manages user sessions in a web application.
+## files
+- spec.md | Defines technical specifications for a "Sessions Hub" feature including requirements, API endpoints, UI layouts, state management, and quality gates for managing user sessions in a web application. | dep: REST API, TypeScript, React/frontend framework (implied by UI specs and quality gates), polling-based state management, Pydantic/BaseModel
+## arch
+Specification-driven architecture using requirements documentation, API endpoint definitions, UI layout diagrams, state management patterns, and quality gate checklists.
+## tags
+sessions, spec, defines, technical, specifications, hub, feature, including
+## symbols
+-
+## workflows
+-
+## dirty
+-