get-saggar(kube): deploy

The saggar-dist chart: a single-node Garage hosting the distribution
bucket — public read-only website on get.saggar.dev (the host label
is what Garage's vhost routing resolves the bucket from), S3 write
surface staying cluster-internal for the publish workflow. Same edge
path as the other saggar hosts: dns A record, cert-manager
certificate, caddy route. Chart repo and packages auth carry over
from the saggar release.

kubernetes/production/get-saggar/release.yaml

@@ -0,0 +1,21 @@
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+    name: get-saggar
+    namespace: get-saggar
+spec:
+    interval: 1m
+    chart:
+        spec:
+            sourceRef:
+                kind: HelmRepository
+                name: saggar
+                namespace: get-saggar
+            chart: saggar-dist
+            # Same CI scheme as the other saggar charts: timestamped
+            # versions on main pushes, exact versions on v* tags.
+            version: '>=0.1.0-0'
+            interval: 1m
+    valuesFrom:
+        - kind: Secret
+          name: get-saggar-values