Audit fixes for two real bugs in the gRPC service:
1. Format compliance: to_item() wrote F8/I8 regardless of the variable's
declared wire format, so values contradicted the S1F11/S1F21 namelists
(ChamberPressure is F4, WaferCounter U4; the interop trace showed <F8 2.5>
on the wire). Conversion now targets the declared format — verified
end-to-end: secsgem-py now receives <F4 2.5> in S6F11.
2. Thread safety: gRPC handler threads called resolve_variable/resolve_event,
copying live store entries (including Item values) while the io thread
mutates them. The service now snapshots the immutable name->id/format maps
at construction (before run_async, per the documented ordering); all writes
already post to the io thread. Remaining known narrow race (GetControlState
enum read) documented in DAEMON_ROADMAP.
Also: drop a stale tools/run_interop.sh reference from docker-compose.yml.
Tests: daemon in-process 16/16 (new F4/U4 format assertions), core 459/459,
secsgem-py interop green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
raphael
99bfa794fc