feat: initial JaniChat messenger — PWA, WebSocket, admin panel

frontend/src/types.ts

@@ -0,0 +1,74 @@
+export interface User {
+  id: string;
+  username: string;
+  displayName: string;
+  avatarColor: string;
+  bio?: string;
+  phone?: string;
+  isAdmin: boolean;
+  lastSeen?: string;
+  online?: boolean;
+}
+
+export interface ChatMember {
+  id: string;
+  username: string;
+  displayName: string;
+  avatarColor: string;
+  role: 'owner' | 'admin' | 'member';
+  online: boolean;
+  lastSeen: string;
+  canSendMessages: boolean;
+}
+
+export interface Chat {
+  id: string;
+  type: 'private' | 'group' | 'channel';
+  title: string;
+  description?: string;
+  avatarColor: string;
+  isPublic?: boolean;
+  role: 'owner' | 'admin' | 'member';
+  lastMessage?: string;
+  lastMessageAt?: string;
+  unreadCount: number;
+  memberCount: number;
+  privateUserId?: string;
+  createdAt: string;
+  members?: ChatMember[];
+  myRole?: string;
+  canSendMessages?: boolean;
+  canAddMembers?: boolean;
+}
+
+export interface Attachment {
+  id: string;
+  filename: string;
+  originalName: string;
+  mimeType: string;
+  size: number;
+  url: string;
+}
+
+export interface Message {
+  id: string;
+  chatId: string;
+  content: string;
+  type: 'text' | 'image' | 'file' | 'system';
+  isDeleted: boolean;
+  isEdited: boolean;
+  editedAt?: string;
+  createdAt: string;
+  replyTo?: {
+    id: string;
+    content: string;
+    senderName: string;
+  } | null;
+  attachments: Attachment[];
+  sender: {
+    id: string;
+    username: string;
+    displayName: string;
+    avatarColor: string;
+  } | null;
+}