Pin worker logpush in wrangler config (#1625)

The account Logpush job exports workers_trace_events to Axiom, but the
script-level logpush flag was lost in the July deploy migration and the
export silently stopped. Pin it in config so deploys preserve it; the flag
was re-enabled via API today.

Author: RhysSullivan

apps/cloud/wrangler.jsonc

@@ -21,6 +21,12 @@
   "observability": {
     "enabled": true,
   },
+  // Script-level logpush feeds the account's workers_trace_events Logpush job
+  // (invocation logs, outcomes like exceededMemory, console output) into
+  // Axiom. Pinned here because the setting lives on the script: a deploy that
+  // omits it can reset it to false, which is how the export silently died in
+  // the July deploy-tooling migration.
+  "logpush": true,
   "durable_objects": {
     "bindings": [
       {