Same rule as matrix and grafana: which build a service runs is a decision
of the host that runs it. Both stores already had a `deploy.<store>`
option for retention, so the package joins something rather than opening
a namespace.
The prose in both modules claimed the package as part of "what the store
IS from any hive's point of view" — a client hive needs the domain and
the port to reach a store, never the build it runs. deploy.nix's own
comment made the same claim about the pair and is corrected with them.
Separately, and the reason this commit adds a fixture rather than a line:
NEITHER STORE HAD AN OLD-PATH FIXTURE AT ALL. `swarm.victorialogs.` and
`swarm.victoriametrics.` had zero hits in module-eval.nix, so the
`enable` shims from the first slice and both `retentionPeriod` shims have
been uncovered since they landed — the suite would have gone green with
any of them deleted. That is precisely what the wireguard fixture's own
comment warns about: a missing shim reads as a clean tree and breaks
every existing operator config.
`storesOldPath` therefore sets all six old paths, not just the two this
commit moves. The case reads the package the CONTAINER renders rather
than the option, so a shim that resolves but stops reaching the module
fails too.
Refs #3772.
e091add37a