Packaged for the [uhhm] Arch registry, like every other uhhm binary

PKGBUILD from the tagged checkout (tag must equal pkgver), built per
architecture by the release workflow: x86_64 on ergo's bare runner,
aarch64 on klokka's, uploaded to project.uhhm.no/api/packages/bl/arch/
uhhm with the REGISTRY_TOKEN repo secret. The package ships /usr/bin/
gdo, gdo.service and an /etc/gdo/env template; the installer script is
gone. !lto: makepkg's -flto hid ring's C symbols from the Rust linker.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01L4jrCgLiKKHAEFuZUJjckH

deploy/env

@@ -0,0 +1,10 @@
+# gdo - one per host. Read by gdo.service; mode 0600, the one file
+# with a secret in it. See /usr/share/doc/gdo/README.md.
+NATS_URL=nats://127.0.0.1:4222
+SMTP_HOST=127.0.0.1
+SMTP_PORT=25
+# What gdo says in EHLO; a strict server refuses a bare hostname.
+# Unset, the host's full name is used.
+#SMTP_HELO=host.example.no
+# A .typ file: set, every mail carries a PDF rendered from it.
+#GDO_TYPST_THEME=/etc/gdo/theme.typ