fix(agent-jobs): validate claims before claiming

packages/backend/convex/agentJobsNode.ts

@@ -1,6 +1,6 @@
 'use node';
 
-import { ConvexError, v } from 'convex/values';
+import { v } from 'convex/values';
 
 import type { Doc } from './_generated/dataModel';
 import { internal } from './_generated/api';
@@ -56,20 +56,7 @@ export const claimNextForWorker = action({
       },
     )) as ClaimedJob | null;
     if (!claimed) return null;
-    if (!claimed.spoon) {
-      throw new ConvexError('Claimed job points at a missing Spoon.');
-    }
-    if (!claimed.aiProviderProfile) {
-      throw new ConvexError(
-        'AI is not configured for this user. Add an AI provider in settings.',
-      );
-    }
-    if (
-      claimed.aiProviderProfile.authType !== 'none' &&
-      !claimed.aiProviderProfile.encryptedSecret
-    ) {
-      throw new ConvexError('Selected AI provider is missing credentials.');
-    }
+    if (!claimed.spoon || !claimed.aiProviderProfile) return null;
     const profile = claimed.aiProviderProfile;
     return {
       job: claimed.job,