1. Add `web/src/components/common/ui/CardTable.js`
• Renders Semi-UI `Table` on desktop; on mobile, transforms each row into a rounded `Card`.
• Supports all standard `Table` props, including `rowSelection`, `scroll`, `pagination`, etc.
• Adds mobile pagination via Semi-UI `Pagination`.
• Implements a 500 ms minimum, active Skeleton loader that mimics real column layout (including operation-button row).
2. Replace legacy `Table` with `CardTable`
• Updated all major data pages: Channels, MJ-Logs, Redemptions, Tokens, Task-Logs, Usage-Logs and Users.
• Removed unused `Table` imports; kept behaviour on desktop unchanged.
3. UI polish
• Right-aligned operation buttons and sensitive fields (e.g., token keys) inside mobile cards.
• Improved Skeleton placeholders to better reflect actual UI hierarchy and preserve the active animation.
These changes dramatically improve the mobile experience while retaining full functionality on larger screens.
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