Enhance UI and Accessibility (WCAG)

- Add 'Skip to main content' links to App and Guest layouts.
- Add aria-current to navigation links for active page indication.
- Add aria-label to mobile menu button.
- Include pending UI updates for Dashboard and Welcome pages with improved structure.

stop-usher.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Stop Laravel HTTP server for Usher stack
+HOST=0.0.0.0
+PORT=8000
+
+PIDS=$(pgrep -f "artisan serve --host ${HOST} --port ${PORT}" || true)
+
+if [ -z "$PIDS" ]; then
+  echo "No running Laravel dev server found on ${HOST}:${PORT}."
+  exit 0
+fi
+
+echo "Stopping Laravel dev server (PIDs: $PIDS)..."
+echo "$PIDS" | xargs kill
+echo "Stopped."
+