fix: respect configured LLM generation limits

test/llm-ideas.test.mjs

@@ -0,0 +1,48 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { generateLLMIdeas } from '../lib/llm/ideas.mjs';
+
+const response = JSON.stringify([{
+  title: 'Test idea',
+  type: 'WATCH',
+  ticker: 'SPY',
+  confidence: 'LOW',
+  rationale: 'Test rationale',
+  risk: 'Test risk',
+  horizon: 'Days',
+  signals: ['test'],
+}]);
+
+test('idea generation respects provider token and timeout configuration', async () => {
+  let capturedOptions;
+  const provider = {
+    isConfigured: true,
+    maxTokens: 2000,
+    timeoutMs: 300000,
+    async complete(_systemPrompt, _context, options) {
+      capturedOptions = options;
+      return { text: response };
+    },
+  };
+
+  const ideas = await generateLLMIdeas(provider, {}, null, []);
+
+  assert.deepEqual(capturedOptions, { maxTokens: 2000, timeout: 300000 });
+  assert.equal(ideas.length, 1);
+  assert.equal(ideas[0].source, 'llm');
+});
+
+test('idea generation keeps safe defaults for providers without limits', async () => {
+  let capturedOptions;
+  const provider = {
+    isConfigured: true,
+    async complete(_systemPrompt, _context, options) {
+      capturedOptions = options;
+      return { text: response };
+    },
+  };
+
+  await generateLLMIdeas(provider, {}, null, []);
+
+  assert.deepEqual(capturedOptions, { maxTokens: 4096, timeout: 90000 });
+});