fix: integrate Claude CLI provider state

packages/web/server/lib/small-model/index.js

@@ -120,6 +120,13 @@ export async function generateSmallModelText({ prompt, system, maxOutputTokens,
     );
   }
 
+  if (resolved.providerID === 'claude-code') {
+    throw Object.assign(
+      new Error('Claude Code cannot be used for background small-model actions. Choose another Small Model in Settings → Sessions.'),
+      { statusCode: 422, code: 'small-model-provider-unsupported' },
+    );
+  }
+
   // Callers with a session context can forbid silently switching providers:
   // an explicit user choice (settings override, opencode config, request
   // model) is always allowed, anything else must stay on the session's
@@ -183,6 +190,7 @@ export function listAuthenticatedProviders() {
     const ids = new Set(
       Object.keys(auth || {}).filter((providerID) => isUsableAuthEntry(auth[providerID])),
     );
+    ids.delete('claude-code');
     // The catalog id is github-copilot while legacy auth entries may sit
     // under the copilot alias.
     if (isUsableAuthEntry(getAuthEntryForProvider(auth, 'github-copilot'))) {