* feat(mobile): Add animated TypingIndicator widget for AI chat responses
Replaces the static CircularProgressIndicator + "AI is thinking..." text
with an animated TypingIndicator showing pulsing dots while the AI generates
a response. Respects the app color scheme so it works in light and dark themes.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Fix: Normalize stagger progress to [0,1) in TypingIndicator to prevent negative opacity
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(mobile): fix typing indicator visibility and run pub get
The typing indicator was only visible for the duration of the HTTP
POST (~instant) because it was tied to `isSendingMessage`. It now
tracks the full AI response lifecycle via a new `isWaitingForResponse`
state that stays true through polling until the response stabilises.
- Add `isWaitingForResponse` to ChatProvider; set on poll start,
clear on poll stop with notifyListeners so the UI reacts correctly
- Move TypingIndicator inside the ListView as an assistant bubble
so it scrolls naturally with the conversation
- Add provider listener that auto-scrolls on every update while
waiting for a response
- Redesign TypingIndicator: 3-dot sequential bounce animation
(classic chat style) replacing the simultaneous fade
* feat(mobile): overhaul new-chat flow and fix typing indicator bugs
chat is created lazily
on first send, eliminating all pre-conversation flashes and crashes
- Inject user message locally into _currentChat immediately on createChat
so it renders before the first poll completes
- Hide thinking indicator the moment the first assistant content arrives
(was waiting one extra 2s poll cycle before disappearing)
- Fix double-spinner on new chat: remove manual showDialog spinner and
use a local _isCreating flag on the FAB instead
* fix(mboile) : address PR review — widget lifecycle safety and new-chat regression
* Fic(mobile): Add mounted check in post-frame callback
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
