refactor(agents): share model alias line builder

src/agents/model-alias-lines.ts

@@ -0,0 +1,20 @@
+import type { OpenClawConfig } from "../config/config.js";
+
+export function buildModelAliasLines(cfg?: OpenClawConfig) {
+  const models = cfg?.agents?.defaults?.models ?? {};
+  const entries: Array<{ alias: string; model: string }> = [];
+  for (const [keyRaw, entryRaw] of Object.entries(models)) {
+    const model = String(keyRaw ?? "").trim();
+    if (!model) {
+      continue;
+    }
+    const alias = String((entryRaw as { alias?: string } | undefined)?.alias ?? "").trim();
+    if (!alias) {
+      continue;
+    }
+    entries.push({ alias, model });
+  }
+  return entries
+    .toSorted((a, b) => a.alias.localeCompare(b.alias))
+    .map((entry) => `- ${entry.alias}: ${entry.model}`);
+}