hub v0.47.0: CHANGELOG + README tab/host-lifecycle/offsite docs + REUSE map + manifest bump to 0.47.0

CONTEXT.md: v0.47.0 arc entry (resolves the 146d165 swept-WIP flag) + the
multi-endpoint-allocation deferral + pre-GitOps stale-template note.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vvz1NCu22p8dGkRCpeX9re

manifests/hub.yaml

@@ -126,7 +126,7 @@ spec:
     spec:
       containers:
         - name: hub
-          image: gitea.dooplex.hu/admin/felhom-hub:0.46.0
+          image: gitea.dooplex.hu/admin/felhom-hub:0.47.0
           ports:
             - containerPort: 8080
               name: http