feat(communication): add housekeeping find-user-by-name packet pair

TS counterparts to Arcturus' new HK packet pair. Adds
HousekeepingFindUserByNameComposer (OutgoingHeader 9100) and
HousekeepingUserDetailEvent (IncomingHeader 9200) with a parser that
wraps an optional HousekeepingUserDetailData. The data class follows
the flat optional-trailing-field pattern (isMuted / isTradeLocked
read under bytesAvailable guards) so the renderer stays compatible
with a server that hasn't surfaced those manager APIs offline yet.

The parser exposes `found: boolean` and `user: HousekeepingUserDetailData | null`
so a callsite that gets a "user not found" reply can branch without
having to read into an unpopulated data object — the composer writes
`appendBoolean(false)` and stops, the parser sees the false and leaves
`user` null.

Headers 9100..9199 / 9200..9299 reserved for the rest of the HK
packet surface. Composer + event registered in NitroMessages alongside
the existing YouTube-room overrides. `yarn compile:fast` clean, vitest
138/138 green.

packages/communication/src/NitroMessages.ts

@@ -7,6 +7,7 @@ import { ConfInvisStateMessageEvent } from './messages';
 import { HanditemBlockStateMessageEvent } from './messages';
 import { TranslationLanguagesEvent, TranslationLanguagesRequestComposer, TranslationResultEvent, TranslationTextRequestComposer } from './messages';
 import { YouTubeRoomBroadcastEvent, YouTubeRoomPlayComposer, YouTubeRoomSettingsComposer, YouTubeRoomSettingsEvent, YouTubeRoomWatchersEvent, YouTubeRoomWatchingComposer } from './messages';
+import { HousekeepingFindUserByNameComposer, HousekeepingUserDetailEvent } from './messages';
 export class NitroMessages implements IMessageConfiguration
 {
     private _events: Map<number, Function>;
@@ -505,6 +506,9 @@ export class NitroMessages implements IMessageConfiguration
         this._events.set(IncomingHeader.YOUTUBE_ROOM_BROADCAST, YouTubeRoomBroadcastEvent);
         this._events.set(IncomingHeader.YOUTUBE_ROOM_SETTINGS, YouTubeRoomSettingsEvent);
         this._events.set(IncomingHeader.YOUTUBE_ROOM_WATCHERS, YouTubeRoomWatchersEvent);
+
+        // Housekeeping (in-client admin panel)
+        this._events.set(IncomingHeader.HOUSEKEEPING_USER_DETAIL, HousekeepingUserDetailEvent);
         this._events.set(IncomingHeader.WIRED_REWARD, WiredRewardResultMessageEvent);
         this._events.set(IncomingHeader.WIRED_SAVE, WiredSaveSuccessEvent);
         this._events.set(IncomingHeader.WIRED_ERROR, WiredValidationErrorEvent);
@@ -1255,6 +1259,9 @@ export class NitroMessages implements IMessageConfiguration
         this._composers.set(OutgoingHeader.YOUTUBE_ROOM_PLAY, YouTubeRoomPlayComposer);
         this._composers.set(OutgoingHeader.YOUTUBE_ROOM_SETTINGS, YouTubeRoomSettingsComposer);
         this._composers.set(OutgoingHeader.YOUTUBE_ROOM_WATCHING, YouTubeRoomWatchingComposer);
+
+        // Housekeeping (in-client admin panel)
+        this._composers.set(OutgoingHeader.HOUSEKEEPING_FIND_USER_BY_NAME, HousekeepingFindUserByNameComposer);
     }
 
     public get events(): Map<number, Function>

packages/communication/src/messages/incoming/IncomingHeader.ts

@@ -503,4 +503,7 @@ export class IncomingHeader
     public static YOUTUBE_ROOM_BROADCAST = 8001;
     public static YOUTUBE_ROOM_WATCHERS = 8002;
     public static YOUTUBE_ROOM_SETTINGS = 8003;
+
+    // Housekeeping (in-client admin panel) — IDs 9200..9299 reserved
+    public static HOUSEKEEPING_USER_DETAIL = 9200;
 }

packages/communication/src/messages/incoming/housekeeping/HousekeepingUserDetailEvent.ts

@@ -0,0 +1,16 @@
+import { IMessageEvent } from '@nitrots/api';
+import { MessageEvent } from '@nitrots/events';
+import { HousekeepingUserDetailParser } from '../../parser';
+
+export class HousekeepingUserDetailEvent extends MessageEvent implements IMessageEvent
+{
+    constructor(callBack: Function)
+    {
+        super(callBack, HousekeepingUserDetailParser);
+    }
+
+    public getParser(): HousekeepingUserDetailParser
+    {
+        return this.parser as HousekeepingUserDetailParser;
+    }
+}

packages/communication/src/messages/incoming/housekeeping/index.ts

@@ -0,0 +1 @@
+export * from './HousekeepingUserDetailEvent';

packages/communication/src/messages/incoming/index.ts

@@ -24,6 +24,7 @@ export * from './group';
 export * from './groupforums';
 export * from './handshake';
 export * from './help';
+export * from './housekeeping';
 export * from './inventory';
 export * from './inventory/achievements';
 export * from './inventory/avatareffect';

packages/communication/src/messages/outgoing/OutgoingHeader.ts

@@ -522,4 +522,7 @@ export class OutgoingHeader
     public static YOUTUBE_ROOM_PLAY = 8001;
     public static YOUTUBE_ROOM_WATCHING = 8002;
     public static YOUTUBE_ROOM_SETTINGS = 8003;
+
+    // Housekeeping (in-client admin panel) — IDs 9100..9199 reserved
+    public static HOUSEKEEPING_FIND_USER_BY_NAME = 9100;
 }

packages/communication/src/messages/outgoing/housekeeping/HousekeepingFindUserByNameComposer.ts

@@ -0,0 +1,21 @@
+import { IMessageComposer } from '@nitrots/api';
+
+export class HousekeepingFindUserByNameComposer implements IMessageComposer<ConstructorParameters<typeof HousekeepingFindUserByNameComposer>>
+{
+    private _data: ConstructorParameters<typeof HousekeepingFindUserByNameComposer>;
+
+    constructor(username: string)
+    {
+        this._data = [username];
+    }
+
+    public getMessageArray()
+    {
+        return this._data;
+    }
+
+    public dispose(): void
+    {
+        return;
+    }
+}

packages/communication/src/messages/outgoing/housekeeping/index.ts

@@ -0,0 +1 @@
+export * from './HousekeepingFindUserByNameComposer';

packages/communication/src/messages/outgoing/index.ts

@@ -21,6 +21,7 @@ export * from './group';
 export * from './groupforums';
 export * from './handshake';
 export * from './help';
+export * from './housekeeping';
 export * from './inventory';
 export * from './inventory/avatareffect';
 export * from './inventory/badges';

packages/communication/src/messages/parser/housekeeping/HousekeepingUserDetailData.ts

@@ -0,0 +1,61 @@
+import { IMessageDataWrapper } from '@nitrots/api';
+
+export class HousekeepingUserDetailData
+{
+    private _id: number = 0;
+    private _username: string = '';
+    private _motto: string = '';
+    private _figure: string = '';
+    private _rank: number = 0;
+    private _rankName: string = '';
+    private _online: boolean = false;
+    private _lastOnlineAt: number = 0;
+    private _creditsBalance: number = 0;
+    private _ducketsBalance: number = 0;
+    private _diamondsBalance: number = 0;
+    private _email: string = '';
+    private _ipLast: string = '';
+    private _isBanned: boolean = false;
+    private _isMuted: boolean = false;
+    private _isTradeLocked: boolean = false;
+
+    constructor(wrapper: IMessageDataWrapper)
+    {
+        if(!wrapper) throw new Error('invalid_wrapper');
+
+        this._id = wrapper.readInt();
+        this._username = wrapper.readString();
+        this._motto = wrapper.readString();
+        this._figure = wrapper.readString();
+        this._rank = wrapper.readInt();
+        this._rankName = wrapper.readString();
+        this._online = wrapper.readBoolean();
+        this._lastOnlineAt = wrapper.readInt();
+        this._creditsBalance = wrapper.readInt();
+        this._ducketsBalance = wrapper.readInt();
+        this._diamondsBalance = wrapper.readInt();
+        this._email = wrapper.readString();
+        this._ipLast = wrapper.readString();
+        this._isBanned = wrapper.readBoolean();
+
+        if(wrapper.bytesAvailable) this._isMuted = wrapper.readBoolean();
+        if(wrapper.bytesAvailable) this._isTradeLocked = wrapper.readBoolean();
+    }
+
+    public get id(): number { return this._id; }
+    public get username(): string { return this._username; }
+    public get motto(): string { return this._motto; }
+    public get figure(): string { return this._figure; }
+    public get rank(): number { return this._rank; }
+    public get rankName(): string { return this._rankName; }
+    public get online(): boolean { return this._online; }
+    public get lastOnlineAt(): number { return this._lastOnlineAt; }
+    public get creditsBalance(): number { return this._creditsBalance; }
+    public get ducketsBalance(): number { return this._ducketsBalance; }
+    public get diamondsBalance(): number { return this._diamondsBalance; }
+    public get email(): string { return this._email; }
+    public get ipLast(): string { return this._ipLast; }
+    public get isBanned(): boolean { return this._isBanned; }
+    public get isMuted(): boolean { return this._isMuted; }
+    public get isTradeLocked(): boolean { return this._isTradeLocked; }
+}

packages/communication/src/messages/parser/housekeeping/HousekeepingUserDetailParser.ts

@@ -0,0 +1,30 @@
+import { IMessageDataWrapper, IMessageParser } from '@nitrots/api';
+import { HousekeepingUserDetailData } from './HousekeepingUserDetailData';
+
+export class HousekeepingUserDetailParser implements IMessageParser
+{
+    private _found: boolean = false;
+    private _user: HousekeepingUserDetailData | null = null;
+
+    public flush(): boolean
+    {
+        this._found = false;
+        this._user = null;
+
+        return true;
+    }
+
+    public parse(wrapper: IMessageDataWrapper): boolean
+    {
+        if(!wrapper) return false;
+
+        this._found = wrapper.readBoolean();
+
+        if(this._found) this._user = new HousekeepingUserDetailData(wrapper);
+
+        return true;
+    }
+
+    public get found(): boolean { return this._found; }
+    public get user(): HousekeepingUserDetailData | null { return this._user; }
+}

packages/communication/src/messages/parser/housekeeping/index.ts

@@ -0,0 +1,2 @@
+export * from './HousekeepingUserDetailData';
+export * from './HousekeepingUserDetailParser';

packages/communication/src/messages/parser/index.ts

@@ -24,6 +24,7 @@ export * from './group/utils';
 export * from './groupforums';
 export * from './handshake';
 export * from './help';
+export * from './housekeeping';
 export * from './inventory';
 export * from './inventory/achievements';
 export * from './inventory/avatareffect';