The VPS at 57.129.81.31 was incorrectly trying to join itself as a
regular node instead of being detected as a bootstrap node.
Added isLocalIP() function to check if bootstrap peer IPs match
local machine IPs using 'ip addr show' and 'hostname -I' commands.
This should resolve the 'invalid join address' error where the
bootstrap node was trying to join http://57.129.81.31:4001 (itself).
- Regular nodes now join actual bootstrap nodes instead of localhost:4001
- Extract IP from bootstrap peer multiaddrs for RQLite join address
- Add fallback to first known bootstrap node (57.129.81.31:4001)
- This fixes the 'fatal: http://localhost:4001 is an invalid join address' error
Regular nodes will now properly join the RQLite cluster of bootstrap nodes
instead of trying to join themselves, which was causing startup failures.
