v1.45.0

Added

• Move devices between mikr instances — export & import. You can now export a selection of devices to a single encrypted .mikrbundle file and import it into another mikr instance, with the devices coming up ready to use — no need to retype passwords, SSH keys or SNMP communities. On the Export screen pick devices by whole site and/or individually, then set a passphrase; the file is sealed with it (AES-256 from a scrypt-derived key), so secrets are never stored or sent in the clear. On Import, choose the file and enter the passphrase: missing sites are created automatically, and devices you already have (same host + username) are skipped. Great for spinning up demo or staging instances from your production list. Admin-only and recorded in the activity log. Thanks to everyone in the community who asked for this.