* feat(mobile): add suggested questions to empty chat screen
- New constants file (lib/constants/suggested_questions.dart) for the 4
suggested question chips, kept separate from screen logic with a clear
l10n upgrade path noted in comments
- Empty chat screen now shows a personalised greeting and tappable
OutlinedButton chips; tapping one pre-fills and sends the message
- Optimistic message insertion in ChatProvider.sendMessage so the user
message and typing indicator appear instantly on tap, with rollback on
failure
- Full AI response revealed only once polling detects stable content
(2 consecutive polls with no growth), preventing partial responses
from flashing on screen
- fetchChat stops any in-progress polling before fetching so a manual
refresh always shows the authoritative server response
- Fixed updateChatTitle silently wiping messages when the title-update
API response omits the messages array
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(mobile): address PR review comments
- Extract _rollbackOptimisticMessage helper to eliminate duplicated
rollback logic in sendMessage failure and catch branches
- Replace raw 'Error: ${e.toString()}' user-facing strings with a
generic message; retain technical details via debugPrint in each
catch block
- Replace inline ternary in updateChatTitle with explicit if/else for
readability while preserving message-preservation behaviour
- Fix non-reactive AuthProvider read inside Consumer<ChatProvider>
builder (listen: false → listen: true) so greeting updates when
user's firstName changes
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
