refactor: move plugin-specific config into extensions

extensions/opencode/onboard.ts

@@ -0,0 +1,31 @@
+import { OPENCODE_ZEN_DEFAULT_MODEL_REF } from "../../src/agents/opencode-zen-models.js";
+import { applyAgentDefaultModelPrimary } from "../../src/commands/onboard-auth.config-shared.js";
+import type { OpenClawConfig } from "../../src/config/config.js";
+
+export { OPENCODE_ZEN_DEFAULT_MODEL_REF };
+
+export function applyOpencodeZenProviderConfig(cfg: OpenClawConfig): OpenClawConfig {
+  const models = { ...cfg.agents?.defaults?.models };
+  models[OPENCODE_ZEN_DEFAULT_MODEL_REF] = {
+    ...models[OPENCODE_ZEN_DEFAULT_MODEL_REF],
+    alias: models[OPENCODE_ZEN_DEFAULT_MODEL_REF]?.alias ?? "Opus",
+  };
+
+  return {
+    ...cfg,
+    agents: {
+      ...cfg.agents,
+      defaults: {
+        ...cfg.agents?.defaults,
+        models,
+      },
+    },
+  };
+}
+
+export function applyOpencodeZenConfig(cfg: OpenClawConfig): OpenClawConfig {
+  return applyAgentDefaultModelPrimary(
+    applyOpencodeZenProviderConfig(cfg),
+    OPENCODE_ZEN_DEFAULT_MODEL_REF,
+  );
+}