mod: Ext 14 — decision wire format for federation transport, 323/323

mod/decision->wire emits a versioned pipe-delimited line (MOD1|r1|hide|spam-hide);
mod/wire->decision parses it back (mod/wire-valid? guards). split-char built over
slice/len (loaded env has no split). Integration test runs the full federated
path: serialize → wire → deserialize → fed-receive-decision trust-gating
(untrusted→advisory, trusted→applied). +16 tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lib/mod/conformance.conf

@@ -22,6 +22,7 @@ PRELOADS=(
   lib/mod/batch.sx
   lib/mod/temporal.sx
   lib/mod/sla.sx
+  lib/mod/wire.sx
   lib/mod/lifecycle.sx
   lib/mod/audit.sx
   lib/mod/api.sx
@@ -46,4 +47,5 @@ SUITES=(
   "batch:lib/mod/tests/batch.sx:(mod-batch-tests-run!)"
   "temporal:lib/mod/tests/temporal.sx:(mod-temporal-tests-run!)"
   "sla:lib/mod/tests/sla.sx:(mod-sla-tests-run!)"
+  "wire:lib/mod/tests/wire.sx:(mod-wire-tests-run!)"
 )