Three fixes for the "Install on this agent" pipeline, covering the whole
split-brain class between action-spawning endpoints and their status polls:
1. electron/connection-config.ts — the /api/actions/{name}/status poll family
now routes to the same backend as every action-spawning route. Before,
POST /api/skills/hub/install ran on the PRIMARY backend (scoped route)
while the follow-up status poll for a non-default profile routed to the
profile's POOLED backend, which never registered the dynamic action name
(skills-install-<slug>-<hash> lives only in the spawning process's
memory) -> 404 "Unknown action" toast even though the install succeeded.
POST /api/mcp/catalog/install joins the scoped table for the same reason.
2. src/store/hub-actions.ts — a non-zero subprocess exit now rejects with the
action log tail so the caller's catch toasts it. Before, a failed install
(scan gate, network, bad identifier) stopped silently: no toast, no row
flip, and the unchanged skills list read as "install did nothing".
3. src/contrib/runtime-loader.ts — a disk plugin copy shadowed by a bundled
twin now publishes a visible "(stale disk copy)" inventory row carrying
the folder path, instead of a console.info nobody sees. Stale
desktop-plugins/ leftovers from dev deploys are the same folders that
actively break the feature on shells without the bundled twin.
Teknium
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