fix: add explicit OnDisconnect return type to avoid internal import in declaration

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jay-cox

dist/document.d.ts

@@ -1,4 +1,4 @@
-import type { DatabaseReference, DataSnapshot, Unsubscribe } from 'firebase/database';
+import type { DatabaseReference, DataSnapshot, OnDisconnect, Unsubscribe } from 'firebase/database';
 import { RTDatabase } from './database';
 export declare class Document {
     _ref: DatabaseReference;
@@ -45,6 +45,6 @@ export declare class Document {
      * @returns Promise
      */
     remove: () => Promise<void>;
-    onDisconnect: () => import("@firebase/database").OnDisconnect;
+    onDisconnect: () => OnDisconnect;
     close: () => void;
 }

dist/index.d.ts

@@ -1,7 +1,6 @@
 import { FirebaseOptions } from 'firebase/app';
-import { DatabaseReference, Unsubscribe, DataSnapshot, Database } from 'firebase/database';
+import { DatabaseReference, Unsubscribe, DataSnapshot, OnDisconnect, Database } from 'firebase/database';
 import { Auth, Persistence, UserCredential } from 'firebase/auth';
-import * as _firebase_database from '@firebase/database';
 import React, { FunctionComponent, ComponentClass } from 'react';
 
 declare class Document {
@@ -49,7 +48,7 @@ declare class Document {
      * @returns Promise
      */
     remove: () => Promise<void>;
-    onDisconnect: () => _firebase_database.OnDisconnect;
+    onDisconnect: () => OnDisconnect;
     close: () => void;
 }
 

src/document.ts

@@ -7,7 +7,7 @@ import {
   push,
   onDisconnect,
 } from 'firebase/database';
-import type { DatabaseReference, DataSnapshot, Unsubscribe } from 'firebase/database';
+import type { DatabaseReference, DataSnapshot, OnDisconnect, Unsubscribe } from 'firebase/database';
 import { NOT_SET } from './constants';
 import { state } from './state';
 import { RTDatabase } from './database';
@@ -129,7 +129,7 @@ export class Document {
     return remove(this._ref);
   };
 
-  onDisconnect = () => {
+  onDisconnect = (): OnDisconnect => {
     return onDisconnect(this._ref);
   };