Remove decorative emojis from README headers and script output for improved consistency

scripts/backtunnel-share

@@ -440,7 +440,7 @@ fi
 # Banner
 # Purpose: inform the user what will happen and where to connect from the remote.
 # ----------------------------
-echo "⏳ Sharing '${FOLDER}' via reverse SSH:"
+echo "Sharing '${FOLDER}' via reverse SSH:"
 echo "    local sshd port     : ${LOCAL_SSH_PORT}"
 echo "    remote bind port    : ${TUNNEL_PORT} (on ${REMOTE_HOST})"
 echo "    remote user         : ${REMOTE_USER}"
@@ -488,7 +488,7 @@ EOT
     )
   fi
 
-  echo "🔗 Invite (copy to chat):"
+  echo "Invite (copy to chat):"
   echo "------------------------------------------------------------"
   [[ -n "$AUTH_CMD" ]] && echo "${AUTH_CMD}"
   echo "${INVITE_CMD}"
@@ -501,10 +501,10 @@ EOT
   if $QR; then
     if command -v qrencode >/dev/null 2>&1; then
       echo
-      echo "📱 QR (scan to copy the command):"
+      echo "QR (scan to copy the command):"
       printf "%s" "${INVITE_CMD}" | qrencode -t ansiutf8
     else
-      echo "⚠️  'qrencode' not installed; skipping QR."
+      echo "'qrencode' not installed; skipping QR."
     fi
   fi
   echo
@@ -521,7 +521,7 @@ echo "To stop sharing early: press Ctrl+C in this window."
 # ----------------------------
 if ssh -o BatchMode=yes -o StrictHostKeyChecking="$HKP" -o ConnectTimeout=5 "${REMOTE_USER}@${REMOTE_HOST}" \
      "command -v nc >/dev/null 2>&1 && nc -z 127.0.0.1 ${TUNNEL_PORT}"; then
-  echo "⚠️  Port ${TUNNEL_PORT} on remote 127.0.0.1 appears in use; choose another with -p." >&2
+  echo "Port ${TUNNEL_PORT} on remote 127.0.0.1 appears in use; choose another with -p." >&2
   # You may 'exit 1' here if you prefer a hard failure
 fi
 
@@ -538,7 +538,7 @@ SSH_PID=""
 cleanup() {
   # stop ssh child if running
   if [[ -n "${SSH_PID:-}" ]] && kill -0 "$SSH_PID" 2>/dev/null; then
-    echo "⏹️  Stopping share..."
+    echo "Stopping share..."
     kill -TERM "$SSH_PID" 2>/dev/null || true
     wait "$SSH_PID" 2>/dev/null || true
   fi
@@ -565,7 +565,7 @@ if timeout "$DURATION" tail --pid="$SSH_PID" -f /dev/null; then
 else
   rc=$?
   if [[ $rc -eq 124 ]]; then
-    echo "⏹️  Sharing ended: reached duration (${DURATION})."
+    echo "Sharing ended: reached duration (${DURATION})."
     # ensure the child is gone
     if kill -0 "$SSH_PID" 2>/dev/null; then
       kill -TERM "$SSH_PID" 2>/dev/null || true