Release 0.1.0-rc.4

Housecarl 0.1.0's fourth release candidate. Since rc.3: undo is staged
like any edit, each chain's built-ins have a window of their own, the
dashboard warns while nftables.service is enabled or an imported table
still applies, and raw rules and dynamic sets refuse fields they used to
ignore silently. make test (with nft 1.1.3), make e2e (140 checks) and
the package test pass.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -111,7 +111,7 @@ The web UI is on `http://127.0.0.1:8070/` (see `listen` in
 
 ## Status
 
-Housecarl 0.1.0 is in testing (0.1.0-rc.3): zones, address sets and
+Housecarl 0.1.0 is in testing (0.1.0-rc.4): zones, address sets and
 services with ordered rules, IPv4 and IPv6, port forwards with hairpin NAT
 and IPv6 pinholes, source NAT and redirects, built-ins, probation for
 network changes (confirmed by the client that made them), the ruleset

VERSION

@@ -1 +1 @@
-0.1.0-rc.3
+0.1.0-rc.4