one-pipe-system/openspec/changes/update-series-grant-package-options-api/tasks.md

1. API and Types

• 1.1 Add the package-options API method and response types defined by the August interface document.

2. Create Grant Dialog

• 2.1 Load package candidates only after both shop and series are selected, passing their IDs unchanged.
• 2.2 Use returned candidates for selection, package names, cost prices and price validation.
• 2.3 Reset candidate and selected-package state when the shop or series changes.

3. Verification

• 3.1 Verify request parameters, candidate rendering and selected-package submission.
• 3.2 Run lint and type checks for changed files.