fix: update Sidebar types to remove Reports tab

frontend/components/Sidebar.tsx

@@ -11,7 +11,6 @@ type SidebarTab =
   | "Company Profile"
   | "Agent Analysis"
   | "Proposal Draft"
-  | "Reports"
   | "History"
   | "About";
 
@@ -38,7 +37,6 @@ export default function Sidebar({ tabs, activeTab, onTabSelect, status, lang, fo
       case "Company Profile": return { label: t.companyProfile, icon: "🏢" };
       case "Agent Analysis": return { label: t.agentAnalysis, icon: "🤖" };
       case "Proposal Draft": return { label: t.proposalDraft, icon: "✍️" };
-      case "Reports": return { label: t.reports, icon: "📑" };
       case "History": return { label: t.history, icon: "🕒" };
       case "About": return { label: t.about, icon: "ℹ️" };
       default: return { label: tab, icon: "•" };