* ci: run cross-version wire suites when agent sends or orchestration change
The selector skipped the cross-version wire job for #24901, which changed the
shared agent-send path, the structured send envelope builders, and orchestration
RPC code. Route the send payload/fingerprint builders, src/main/runtime/orchestration/,
and the orchestration RPC methods to the job, and pin each rule in a test.
* ci: run cross-version wire suites only for code they execute
The agent-session suites now build their send through the shared outbox
builder and check it against the release host's schema and fingerprint,
so the send builder and outbox are selected exactly. Load-only
orchestration rules are dropped; the dispatcher-path files every suite
request runs through are selected instead.
* ci: run the release's own send admission, cover queued sends and the RPC reply builder
* test(cross-version): a wrong send fingerprint must be refused, so an agreed one is not vacuous
