Package-level declarations

General connection status handler Only listens for connection status changes and notifies externally via DataKey; contains no UI logic.

Core data handler for the channel list Responsible for channel data fetching, filtering, sorting, deduplication, and UI model management.

Channel list event listener handler Registers all event listeners that trigger channel list refresh, and notifies the ViewModel via DataKey.

Channel list online status handler Listens for user online status changes and manages the online status data source.

Channel list read receipt handler Handles V5 read receipts, multi-device read status synchronization, and message editing.

Channel list user info handler Listens for user/group/group-member info changes and provides a preloading interface.