omnigraph init no longer writes a legacy config into cwd (the source of
the earlier test-pollution bug, and a scaffold for a deprecated file);
the scaffolder is deleted. omnigraph cluster init scaffolds the
replacement: a minimal valid cluster.yaml (version: 1, optional
metadata.name / storage:, a commented graphs example), refusing to
overwrite. The scaffold validates clean via cluster validate in the e2e.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
~/.omnigraph/config.yaml joins the resolution chains as the operator
surface: operator.actor becomes the last hop of THE actor chain (--as >
legacy cli.actor during the RFC-008 window > operator.actor > none, one
implementation for direct-engine and cluster commands alike) and
defaults.output joins the read-format cascade below every more-specific
source. Discovery honors $OMNIGRAPH_HOME (tilde-expanded, #139 finding 9);
an absent file is an empty layer; unknown keys WARN and load (a file
written for later slices must not break this CLI); malformed YAML is a
loud error. The module is CLI-only — the server never reads operator
config (invariant 11 by construction).
$OMNIGRAPH_CONFIG becomes a first-class stand-in for --config in
load_config (flag > env > ./omnigraph.yaml), one meaning in both binaries.
The test harness pins hermeticity: spawned binaries get a nonexistent
OMNIGRAPH_HOME by default so no test ever reads the developer's real
operator config. New coverage: loader unit tests, the env-precedence
matrix on load_config_in, and spawned-binary e2es for the actor chain
(operator wins with no flag/legacy key; legacy outranks it; --as wins) and
the format cascade.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
