InstallStore turns the mesh-store the foundation raised at genesis into the
postgres module, adopted in place: it verifies the module's server names the
same container and the same image the foundation is running (fail-fast on a
drift, rather than tearing down the mesh's store), then registers, builds the
provisioner, and carries the superuser in via secret accept — the mesh cannot
invent a credential that already made the databases (mirroring the control
plane's store-connection delivery, control.go). pinImage generalised to any
module for reuse.
Issue 051 (WBS 3.1). One server holds the controller's contexts and every
module's database.
Claude-Session: https://claude.ai/code/session_01D6qtiYU3P9jk3pnAXyAFyx
One name per thing, per the HQ glossary: the module/container/image/binary/repo
becomes mesh-controller, the seat the-controller, and the store+broker pair the
foundation (embedded base bundles, default template and example lock renamed with
their go:embed directives). No behaviour change — a pure vocabulary rename.
Claude-Session: https://claude.ai/code/session_01D6qtiYU3P9jk3pnAXyAFyx
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