feat: redesign Exams List page to show submitted custom exams

- Added Custom Exams tab showing all exams from Generation page
- Displays title, module badges, duration, and status
- Added Create Exam button
- Kept Exam Sessions tab for institutional sessions
- Search filters across exams

Made-with: Cursor

node_modules/http-proxy-agent/dist/index.d.ts

@@ -0,0 +1,21 @@
+/// <reference types="node" />
+import net from 'net';
+import tls from 'tls';
+import { Url } from 'url';
+import { AgentOptions } from 'agent-base';
+import _HttpProxyAgent from './agent';
+declare function createHttpProxyAgent(opts: string | createHttpProxyAgent.HttpProxyAgentOptions): _HttpProxyAgent;
+declare namespace createHttpProxyAgent {
+    interface BaseHttpProxyAgentOptions {
+        secureProxy?: boolean;
+        host?: string | null;
+        path?: string | null;
+        port?: string | number | null;
+    }
+    export interface HttpProxyAgentOptions extends AgentOptions, BaseHttpProxyAgentOptions, Partial<Omit<Url & net.NetConnectOpts & tls.ConnectionOptions, keyof BaseHttpProxyAgentOptions>> {
+    }
+    export type HttpProxyAgent = _HttpProxyAgent;
+    export const HttpProxyAgent: typeof _HttpProxyAgent;
+    export {};
+}
+export = createHttpProxyAgent;