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- Sync: use OS hostname for each device in Linked devices table; persist deviceNames in state and merge on save/apply so peers see each other's names - Docs: expand SYNC.md (linked devices table, replace-state modal, multi-device, offline); NATIVE-HOST getSyncStatus (deviceId, syncGroupId, linkedDevices, deviceName/name); ARCHITECTURE sync-manager and autopass paths; README features/dashboard/file locations/doc link; BACKUP and SECURITY cross-refs