- Extract device validation logic into separate validateDevice() method
- Replace goto statements with direct function returns for clearer control flow
- Add security warning banner in device configuration UI
- Refactor Kobo tests to use table-driven pattern
- Add database schema note clarifying no schema changes required
- Improve code maintainability and testability
- Add IMPLEMENTATION_EXACT.md with exact code changes for all phases
- Update IMPLEMENTATION_PLAN.md with clarifications on two-field approach:
- device_identifier: Serial number (Kobo) or UUID (KOReader)
- auth_token: Auto-generated API key for authentication
- Resolve all user questions with ✅ marked decisions
- Add verification steps for documentation accuracy
- Document Kobo vs KOReader registration workflow differences
- Add SQL query for token regeneration (UpdateDeviceAuthToken)
- Include TypeScript device management code
- Add Bruno API test files for all new endpoints
- Update Kobo setup documentation for URL path token approach