The harness-neutral rename (COLIBRI_AUTOSPAWN_PI → COLIBRI_AUTOSPAWN,
pi_binary → agent_binary) left two references to the old pi_binary name in
autospawn_agent_if_configured, so colibri-daemon failed to compile:
error[E0425]: cannot find value `pi_binary` — socket.rs:449, 493
Rename both to agent_binary. Also refresh Cargo.lock: workspace members were
still pinned 0.11.0 while the manifests are 0.12.0, so --locked builds (used
for release staging) refused the tree.
Verified: full workspace builds clean and the entire test suite passes
(~230 tests, 0 failures); cargo metadata --locked is back in sync.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>