feat: add setup flow for dedicated research agent

src/cli/setup/security.ts

@@ -8,6 +8,13 @@ const TOOL_PROFILES = [
   { label: 'full (unrestricted)', value: 'full' },
 ];
 
+const RESEARCH_AGENT_TIERS = [
+  { label: 'complex (recommended)', value: 'complex' as const },
+  { label: 'default', value: 'default' as const },
+  { label: 'fast', value: 'fast' as const },
+  { label: 'local', value: 'local' as const },
+];
+
 export async function setupSecurity(p: Prompter, builder: ConfigBuilder): Promise<void> {
   p.println('  Docker sandboxing runs tool commands in isolated containers.');
   p.println('  Requires Docker installed and running.');
@@ -34,4 +41,14 @@ export async function setupSecurity(p: Prompter, builder: ConfigBuilder): Promis
   p.println('    minimal     — status checks only (read-only, safest)');
   const profile = await p.choose('Tool policy profile:', TOOL_PROFILES);
   builder.setToolProfile(profile);
+
+  p.println();
+  p.println('  Research agent adds a dedicated specialist for deep web research.');
+  p.println('  Enables /research command and automatic routing for messages starting with "research ..." or "look up ...".');
+  const enableResearchAgent = await p.confirm('Enable a dedicated research agent?', true);
+  if (enableResearchAgent) {
+    const tier = await p.choose('Research agent model tier:', RESEARCH_AGENT_TIERS);
+    builder.setResearchAgentEnabled({ modelTier: tier });
+    p.println(`✓ Research agent enabled (tier=${tier})`);
+  }
 }