feat: enable d518 kafka shadow producers

scripts/src/hwlab-node-lanes.ts

@@ -322,6 +322,16 @@ export interface HwlabRuntimeCodeAgentProviderSpec {
   readonly opencodeSourceKey?: string;
 }
 
+export interface HwlabRuntimeKafkaShadowProducerSpec {
+  readonly enabled: boolean;
+  readonly mode: "shadow-produce-only";
+  readonly consumeEnabled: false;
+  readonly configRef: string;
+  readonly bootstrapServers: string;
+  readonly commandTopic: string;
+  readonly clientId: string;
+}
+
 export interface HwlabRuntimeCodeAgentRuntimeSpec {
   readonly enabled: boolean;
   readonly adapter: string;
@@ -334,6 +344,7 @@ export interface HwlabRuntimeCodeAgentRuntimeSpec {
   readonly providerIdFrom: "runtimeNodeId";
   readonly defaultProviderProfile: string;
   readonly codexStdioSupervisor: "repo-owned";
+  readonly kafkaShadowProducer?: HwlabRuntimeKafkaShadowProducerSpec;
 }
 
 export interface HwlabRuntimeSourceWorkspaceSpec {
@@ -795,6 +806,25 @@ function codeAgentRuntimeConfig(value: unknown, path: string): HwlabRuntimeCodeA
     providerIdFrom: enumStringField(raw, "providerIdFrom", path, ["runtimeNodeId"]),
     defaultProviderProfile: stringField(raw, "defaultProviderProfile", path),
     codexStdioSupervisor: enumStringField(raw, "codexStdioSupervisor", path, ["repo-owned"]),
+    ...(raw.kafkaShadowProducer === undefined
+      ? {}
+      : { kafkaShadowProducer: codeAgentKafkaShadowProducerConfig(raw.kafkaShadowProducer, `${path}.kafkaShadowProducer`) }),
+  };
+}
+
+function codeAgentKafkaShadowProducerConfig(value: unknown, path: string): HwlabRuntimeKafkaShadowProducerSpec {
+  const raw = asRecord(value, path);
+  const mode = enumStringField(raw, "mode", path, ["shadow-produce-only"]);
+  const consumeEnabled = booleanField(raw, "consumeEnabled", path);
+  if (consumeEnabled !== false) throw new Error(`${path}.consumeEnabled must be false during shadow-produce-only stage`);
+  return {
+    enabled: booleanField(raw, "enabled", path),
+    mode,
+    consumeEnabled,
+    configRef: stringField(raw, "configRef", path),
+    bootstrapServers: stringField(raw, "bootstrapServers", path),
+    commandTopic: stringField(raw, "commandTopic", path),
+    clientId: stringField(raw, "clientId", path),
   };
 }