test: the planned-row control authors a valid externalSharingModel value

Claude-Session: https://claude.ai/code/session_017VaLJnYwhPsanVCe9dMCJU
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/cli/test/validate-lint-mapping-connector-source.test.ts

@@ -119,7 +119,7 @@ beforeAll(() => {
     dirs[label] = dir;
   };
   make('card', stack());
-  make('control', stack({ externalSharingModel: 'read' }));
+  make('control', stack({ externalSharingModel: 'private' }));
 });
 
 afterAll(() => {

packages/lint/src/lint-liveness-properties.test.ts

@@ -1868,7 +1868,7 @@ describe('#21127 — a stack authoring `mapping.connectorSource` lints clean, an
     // `object.externalSharingModel` is `planned` + `authorWarn` in tree — the
     // legal shape: a consumer is being built, keep the key, it does nothing yet.
     const findings = lintLivenessProperties({
-      objects: [{ ...FX_ACCOUNT, externalSharingModel: 'read' }],
+      objects: [{ ...FX_ACCOUNT, externalSharingModel: 'private' }],
       mappings: [FX_PULL],
     });
     const planned = findings.filter((f) => f.rule === 'liveness-planned-property');