call_server now resolves the client backend/transport/host/port from the
live `reme start` process (replaying its start args through
resolve_app_config) so a bare `reme <action>` reaches the server however
it was actually launched, falling back to local config when none runs.
Explicit backend=/transport=/host=/port= still win.
Also fix as_embedding to pass `dimensions` explicitly for agentscope
>=2.0.2, and add Claude Code auto-memory/auto-dream demos to the READMEs.
