Merge wizard-update branch: add QR code feature and README updates

scripts/extract_nprofile.sh

@@ -4,6 +4,11 @@ get_log_info() {
   USER_HOME=$HOME
   USER_NAME=$(whoami)
 
+  # Ensure node is in PATH for QR generation
+  if [ "$OS" = "Mac" ]; then
+    export PATH="$USER_HOME/node/bin:$PATH"
+  fi
+
   LOG_DIR="$INSTALL_DIR/logs"
   DATA_DIR="$INSTALL_DIR/"
   START_TIME=$(date +%s)
@@ -116,12 +121,18 @@ get_log_info() {
         log "A node admin has not yet enrolled via Nostr."
         log "Paste this string into ShockWallet as a node source to connect as administrator:"
         log "${SECONDARY_COLOR}$admin_connect${RESET_COLOR}"
+        echo ""
+        log "Or scan this QR code with ShockWallet:"
+        node "$INSTALL_DIR/scripts/qr_generator.js" "$admin_connect" 2>/dev/null || log "QR code generation unavailable"
         break
       fi
     elif [ -f "$DATA_DIR/app.nprofile" ]; then
       app_nprofile=$(cat "$DATA_DIR/app.nprofile")
       log "${SECONDARY_COLOR}Lightning.Pub${RESET_COLOR} is already set up. Use this nprofile to invite guest users:"
       log "${SECONDARY_COLOR}$app_nprofile${RESET_COLOR}"
+      echo ""
+      log "Or scan this QR code with ShockWallet:"
+      node "$INSTALL_DIR/scripts/qr_generator.js" "$app_nprofile" 2>/dev/null || log "QR code generation unavailable"
       break
     fi
     sleep $WAIT_INTERVAL

scripts/install_nodejs.sh

@@ -77,6 +77,18 @@ install_nodejs_mac() {
 install_nodejs_linux() {
   export NVM_DIR="$USER_HOME/.nvm"
   
+  # Check for snap curl which cannot access hidden folders, nvm falls back to wget if curl is not installed
+  if snap list 2>/dev/null | grep -q "^curl "; then
+    log "ERROR: Snap curl detected"
+    log ""
+    log "Snap curl cannot access hidden folders needed for Node.js installation."
+    log "Please remove snap curl and install native curl:"
+    log "  sudo snap remove curl"
+    log "  sudo apt install curl"
+    log ""
+    exit 1
+  fi
+  
   # Load nvm if it already exists
   [ -s "${NVM_DIR}/nvm.sh" ] && \. "${NVM_DIR}/nvm.sh"
 

scripts/qr_generator.js

@@ -0,0 +1,15 @@
+#!/usr/bin/env node
+
+import qrcode from 'qrcode-terminal';
+
+const text = process.argv[2];
+
+if (!text) {
+  console.error('Usage: qr_generator.js <text>');
+  process.exit(1);
+}
+
+qrcode.generate(text, { small: true }, (qr) => {
+  console.log(qr);
+});
+