phsl / new-api

SUMMARY
• Re-implemented `web/src/pages/Redemption/EditRedemption.js` with Semi Form components, removing legacy local-state handling.
• Added `formApiRef` for centralized control; external “Submit” button now triggers `formApi.submitForm()`.
• Replaced `Input/AutoComplete/DatePicker` etc. with `<Form.*>` fields, leveraging built-in validation & accessibility.
• Field validations:
  – `name` (create only), `quota`, `count` → required with localized messages.
• Expiration-time flow:
  – Default value `null` (no more 1970-01-01).
  – When loading data, convert 0 → null, timestamp → Date.
  – On submit, Date → unix seconds; empty → 0.
• Responsive grid layout (`Row/Col`) for tidy alignment.
• Added helpful `showClear` & full-width styling for inputs; quota presets retained.
• Cleaned unused imports & handlers; fixed linter issues.

RESULT
The Redemption form now benefits from higher performance, clearer validation, and a cleaner codebase consistent with Semi Design best practices.