Continues the proposal #4 split pattern (doorbell, poll, furni-chooser,
user-chooser, friend-request) for the chat-input widget. Splits the
334-line useChatInputWidget along the natural seam:
- useChatInputState — selectedUsername / floodBlocked / floodBlockedSeconds
/ isTyping / isIdle state plus the three event listeners
(FLOOD_EVENT, ObjectSelected, ObjectDeselected) and the three lifecycle
effects (flood-countdown, idle-auto-clear, typing-indicator sync).
- useChatInputActions — sendChat(text, chatType, recipientName, styleId).
Carries the slash-command handler (":shake", ":rotate", ":zoom",
":screenshot", ":pickall", etc.) and the chat-vs-shout-vs-whisper
dispatch path, with the optional outgoing-translation hook.
- useChatInputWidget — deprecated shim that composes both into the
historical { selectedUsername, floodBlocked, floodBlockedSeconds,
setIsTyping, setIsIdle, sendChat } shape so ChatInputView keeps
working unchanged.
Bonus while in here:
- Guarded all roomSession reads in actions with optional chaining
(the hook can be called during the brief no-room window between
enter and leave).
- Dropped the useless 'if(isIdle)' inside the idle effect body — the
early return guard above it already covers that branch.
simoleo89