fix: normalize proxyModel in yaml/json output, drop deprecated gated field

Resolves proxyModel from gated boolean when the DB value is empty
(pre-migration projects). The gated field is no longer included in
get -o yaml/json output, making it apply-compatible with the new schema.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/src/commands/shared.ts

@@ -109,6 +109,14 @@ export function stripInternalFields(obj: Record<string, unknown>): Record<string
     delete result.members;
   }
 
+  // Normalize proxyModel: resolve from gated when empty, then drop deprecated gated field
+  if ('gated' in result || 'proxyModel' in result) {
+    if (!result.proxyModel) {
+      result.proxyModel = result.gated === false ? 'content-pipeline' : 'default';
+    }
+    delete result.gated;
+  }
+
   // Strip null values last (null = unset, omitting from YAML is cleaner and equivalent)
   for (const key of Object.keys(result)) {
     if (result[key] === null) {