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/rollup/dist/loadConfigFile.d.ts

@@ -0,0 +1,20 @@
+import type { LogHandler, MergedRollupOptions, RollupLog } from './rollup';
+
+export interface BatchWarnings {
+	add: (warning: RollupLog) => void;
+	readonly count: number;
+	flush: () => void;
+	log: LogHandler;
+	readonly warningOccurred: boolean;
+}
+
+export type LoadConfigFile = typeof loadConfigFile;
+
+export function loadConfigFile(
+	fileName: string,
+	commandOptions: any,
+	watchMode?: boolean
+): Promise<{
+	options: MergedRollupOptions[];
+	warnings: BatchWarnings;
+}>;