Load startup config under the owning project's directory key (resolving from a
worktree directory when needed) so the auto-opened draft, which activates the
project, finds a ready providers/agents snapshot instead of triggering a second
load. Also dedupe app.agents: listAgents now takes the directory directly and
shares an in-flight request, so the config store and agents store no longer
issue duplicate agent fetches at startup.
Bohdan Triapitsyn
296177357b