Release 0.1.0-rc.1

Guard 0.1.0's first release candidate. It needs Housecarl 0.2's ban
lists. make test and make e2e (47 checks) pass.

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

README.md

@@ -65,4 +65,4 @@ Housecarl's side: its [docs/bans.md](https://gitea.adbraun.lol/adam/housecarl/sr
 
 ## Status
 
-0.1.0 in development. Go, `CGO_ENABLED=0`, Linux. MIT licence.
+Guard 0.1.0 is in testing (0.1.0-rc.1). Go, `CGO_ENABLED=0`, Linux. MIT licence.