- Replace individual page background images with global page background in App.vue
- Update pages.json global styles to use transparent colors for navigation and backgrounds
- Remove redundant bg-image elements and styles from all page components
- Set global page background with login_bg.png image, cover sizing, and fixed attachment
- Simplify individual page styling by removing duplicate background color declarations
- Consolidate background management to single source of truth in App.vue for consistent theming
- Add calcDisplayMileage function to automatically apply mileage correction to displayed fault mileage
- Update fault list display in uniapp to show corrected mileage value
- Update fault list table in Vue admin to show corrected mileage using template slot
- Add CalcDisplayMileage method in OdfCableFaultsController for export functionality
- Ensure consistent mileage calculation across mobile, web, and export features
- Add migration script to introduce rack_type field (0=ODF, 1=optical box)
- Add RackType, LeftPortsCount, RightPortsCount properties to OdfRacks model and DTOs
- Add rack type selector and port count inputs to OdfRackForm component
- Display rack type labels in OdfRacks management table
- Add rack type badges to uni-app rack list cards
- Implement dual-column layout for optical box type in rack detail page with left/right port sections
- Add optical box port naming format (A-1, A-2, etc.) with row-based labeling
- Add visual distinction with background colors (left: #E3F2FD, right: #FFF3E0) and center divider
- Update import/export DTOs to support rack type and optical box port naming
- Mark all v1.0.2.1 tasks as completed
- Add design specification for ODF v1.0.2.1 optical box rack type support
- Add requirements document outlining optical box feature scope and constraints
- Add task breakdown for implementation across backend, frontend, and database layers
- Add design mockups for rack list page and optical box detail page layout
- Add requirements document detailing dual-column layout for optical box racks
- Document port naming conventions for optical box (A-1, B-2) vs ODF (1-1, 2-2) formats
- Establish database schema changes for rack_type and port count fields
- Define API contract changes for OdfRacksDto with new type and port count properties
- Add inline editing UI for mileage correction field in fault detail page
- Implement save/cancel buttons for mileage correction updates
- Add updateMileageCorrection API endpoint and service method
- Update App.vue global styles with page background color
- Enhance pages.json with backgroundColorTop and backgroundColorBottom
- Add MileageCorrectionDto for request validation
- Implement batch fault times retrieval for export functionality
- Add fault frequency time concatenation in export data
- Improve export data structure with complete fault history information
