[feat] Add account deletion functionality to UserPanel component (#5216)

src/stores/firebaseAuthStore.ts

@@ -8,6 +8,7 @@ import {
   type UserCredential,
   browserLocalPersistence,
   createUserWithEmailAndPassword,
+  deleteUser,
   onAuthStateChanged,
   sendPasswordResetEmail,
   setPersistence,
@@ -287,6 +288,14 @@ export const useFirebaseAuthStore = defineStore('firebaseAuth', () => {
     await updatePassword(currentUser.value, newPassword)
   }
 
+  /** Delete the current user account */
+  const _deleteAccount = async (): Promise<void> => {
+    if (!currentUser.value) {
+      throw new FirebaseAuthStoreError(t('toastMessages.userNotAuthenticated'))
+    }
+    await deleteUser(currentUser.value)
+  }
+
   const addCredits = async (
     requestBodyContent: CreditPurchasePayload
   ): Promise<CreditPurchaseResponse> => {
@@ -385,6 +394,7 @@ export const useFirebaseAuthStore = defineStore('firebaseAuth', () => {
     accessBillingPortal,
     sendPasswordReset,
     updatePassword: _updatePassword,
+    deleteAccount: _deleteAccount,
     getAuthHeader
   }
 })