LINE Integration: End-to-End shallowSyncUnreadChats Test

[gloomcheng]

Background

The shallowSyncUnreadChats flow has been refactored to use SmartChatSelector:

1. Scan visible chats (AI Vision)
2. Identify chats needing attention (unread + NOT muted)
3. Click by row position
4. Extract messages
5. Return to chat list
6. Scroll and repeat

Current Status

• SmartChatSelector integrated into lineAtomicCoordinator
• Model rotation for 40 RPD
• LineChatStateTracker created
• Full end-to-end test with actual message extraction
• Database storage verification
• Checkpoint mechanism testing

Test Plan

1. Start with clean state
2. Run shallowSyncUnreadChats
3. Verify:
   • Only non-muted chats processed
   • Messages extracted correctly
   • Checkpoint updated
   • State diff tracked

Dependencies

• Gemini API quota (40 RPD with rotation)
• LINE app running
• Electron environment for full test

Files

• `src/utils/line/lineAtomicCoordinator.js`
• `src/services/line/SmartChatSelector.js`
• `test/shallow-sync-integration.test.mjs`

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