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/tasks/.pi-map.index.md

@@ -1,11 +1,11 @@
-# openspec/tasks (index)
-dir: openspec/tasks
+# tasks (index)
+dir: tasks
 
 ## role
-Contains technical specification documents tracking planned features and architectural improvements for the project.
+This directory contains technical specification and design documents tracking pending engineering tasks for a containerized development environment platform.
 ## parent
-index: openspec/.pi-map.index.md
-map: openspec/.pi-map.md
+index: ./.pi-map.index.md
+map: ./.pi-map.md
 ## children
 -
 ## files
@@ -15,8 +15,8 @@ map: openspec/.pi-map.md
 - terminal-responsiveness.md
 - tool-definition-manifest.md
 ## links
-index: openspec/tasks/.pi-map.index.md
-map: openspec/tasks/.pi-map.md
+index: tasks/.pi-map.index.md
+map: tasks/.pi-map.md
 ## workflows
 -
 ## dirty