Paste-in import: one CIDR/IP per line, optional comment after '#',
blank/comment-only lines ignored - matches the format used by common
public blocklist feeds (Spamhaus DROP, blocklist.de, etc.) so those can
mostly be pasted in directly. Whole batch gets one list_type (allow or
block). Reuses the existing single-entry validation, skips duplicates
(by list_type+CIDR, including within the same paste), caps at 5000 lines,
and reports imported/skipped/invalid counts plus per-line errors.
New route: POST /firewall-lists/entries/import (admin-only). UI: a
collapsible "Bulk import" section on the Global Firewall Lists page.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
