- Add StockDataSource to fetch quotes from Yahoo Finance API
- Add StockSettingsStore for persisting user's stock symbols
- Add StockSettingsView with UI to manage symbols (max 5)
- Add STOCK feed item type and ranker weight (0.3)
- Integrate stock fetch into ContextOrchestrator pipeline
- Stock cards appear in FYI bucket and sync to Glass via BLE
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
