feat: implement QuestionBank CRUD with pagination and template query

- Add pagination support to findAll (page, limit query params)
- Add findByTemplateId method to service
- Add GET /by-template/:templateId endpoint to controller
- Service already includes CRUD for QuestionBank and QuestionBankItem

web/contexts/ConfirmContext.tsx

@@ -0,0 +1,72 @@
+import React, { createContext, useContext, useState, ReactNode } from 'react';
+import ConfirmDialog from '../components/ConfirmDialog';
+
+interface ConfirmOptions {
+    title?: string;
+    message: string;
+    confirmLabel?: string;
+    cancelLabel?: string;
+}
+
+interface ConfirmContextType {
+    confirm: (options: ConfirmOptions | string) => Promise<boolean>;
+}
+
+const ConfirmContext = createContext<ConfirmContextType | undefined>(undefined);
+
+export const useConfirm = () => {
+    const context = useContext(ConfirmContext);
+    if (!context) {
+        throw new Error('useConfirm must be used within a ConfirmProvider');
+    }
+    return context;
+};
+
+interface ConfirmProviderProps {
+    children: ReactNode;
+}
+
+export const ConfirmProvider: React.FC<ConfirmProviderProps> = ({ children }) => {
+    const [options, setOptions] = useState<ConfirmOptions | null>(null);
+    const [resolveRef, setResolveRef] = useState<((value: boolean) => void) | null>(null);
+
+    const confirm = (opts: ConfirmOptions | string): Promise<boolean> => {
+        return new Promise((resolve) => {
+            if (typeof opts === 'string') {
+                setOptions({ message: opts });
+            } else {
+                setOptions(opts);
+            }
+            setResolveRef(() => resolve);
+        });
+    };
+
+    const handleConfirm = () => {
+        if (resolveRef) resolveRef(true);
+        setOptions(null);
+        setResolveRef(null);
+    };
+
+    const handleCancel = () => {
+        if (resolveRef) resolveRef(false);
+        setOptions(null);
+        setResolveRef(null);
+    };
+
+    return (
+        <ConfirmContext.Provider value={{ confirm }}>
+            {children}
+            {options && (
+                <ConfirmDialog
+                    isOpen={!!options}
+                    title={options.title}
+                    message={options.message}
+                    confirmLabel={options.confirmLabel}
+                    cancelLabel={options.cancelLabel}
+                    onConfirm={handleConfirm}
+                    onCancel={handleCancel}
+                />
+            )}
+        </ConfirmContext.Provider>
+    );
+};