- Add Phase 8b to run-e2e.sh: public subnet instance gets PublicIpAddress
and dnat_and_snat rule; private subnet instance gets neither; no blanket
VPC CIDR SNAT (validates mulga-754 fix)
- Remove legacy external_mode="nat" — only "pool" with source=static or
source=dhcp. Admin init defaults to pool/dhcp when WAN detected.
- Enable dev_networking always (was disabled with external mode, breaking
E2E SSH tests)
- Update bootstrap.sh + e2e.yml: SPX_EXTERNAL_POOL env var configures
static IP pool for CI (230-240 single-node, 240-250 multi-node)
- Fix run-vpc-e2e.sh SNAT assertion for mulga-754 (no blanket SNAT)
- Add unit tests for parseDHCPCDLeasedIP, ReconcileFromKV edge cases,
DHCP pool config validation to meet 60% diff coverage threshold
Ben Duncan