fix: ensure complete process cleanup during Pulse removal

- Added pkill commands to terminate any remaining Pulse processes during removal
- Prevents port conflicts when reinstalling after removal
- Uses graceful kill first, then force kill after delay
- Fixes issue where orphaned processes prevented service restart

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/install-pulse.sh

@@ -667,6 +667,13 @@ perform_remove() {
         systemctl stop "$SERVICE_NAME"
     fi
     systemctl disable "$SERVICE_NAME" &>/dev/null || true
+    
+    # Kill any remaining Pulse processes to prevent port conflicts
+    print_info "Ensuring all Pulse processes are stopped..."
+    pkill -f "/opt/pulse/server/index.js" 2>/dev/null || true
+    sleep 2
+    pkill -9 -f "/opt/pulse/server/index.js" 2>/dev/null || true
+    
     rm -f "/etc/systemd/system/$SERVICE_NAME"
     systemctl daemon-reload