This pull request enhances the entity column generation logic in the admin views by adding support for including fields from additional GraphQL types, specifically for the `orders` entity. The changes allow more flexible and comprehensive column definitions by pulling in fields from related types (like `OrderDetail`) and updating the filtering and type resolution logic accordingly.
**This adding payment_status & fulfillment_status from OrderDetail in view configuration feature**
**Entity column generation enhancements:**
* Added the `ADDITIONAL_ENTITY_TYPES` mapping to specify extra GraphQL types whose fields should be included for certain entities (currently, `OrderDetail` for `orders`). ([packages/medusa/src/api/admin/views/[entity]/columns/helpers.tsR260-R263](diffhunk://#diff-ce197feb4e4d1273d9ee19126e284b65fdb4367f0871774a75add5c8cd749d02R260-R263))
* Updated the column generation process to collect fields from both the main entity type and any additional types, while properly filtering out arrays and excluded fields. ([packages/medusa/src/api/admin/views/[entity]/columns/helpers.tsR340-R345](diffhunk://#diff-ce197feb4e4d1273d9ee19126e284b65fdb4367f0871774a75add5c8cd749d02R340-R345), [packages/medusa/src/api/admin/views/[entity]/columns/helpers.tsR373-R414](diffhunk://#diff-ce197feb4e4d1273d9ee19126e284b65fdb4367f0871774a75add5c8cd749d02R373-R414))
* Changed field lookup logic to use a unified `entityFields` object and a new `additionalFieldDefinitions` map for extra fields, ensuring correct type info resolution for all columns. ([packages/medusa/src/api/admin/views/[entity]/columns/helpers.tsL344-R354](diffhunk://#diff-ce197feb4e4d1273d9ee19126e284b65fdb4367f0871774a75add5c8cd749d02L344-R354), [packages/medusa/src/api/admin/views/[entity]/columns/helpers.tsL411-R463](diffhunk://#diff-ce197feb4e4d1273d9ee19126e284b65fdb4367f0871774a75add5c8cd749d02L411-R463))
**What**
- Renames /admin-next -> /admin
- Renames @medusajs/admin-sdk -> @medusajs/admin-bundler
- Creates a new package called @medusajs/admin-sdk that will hold all tooling relevant to creating admin extensions. This is currently `defineRouteConfig` and `defineWidgetConfig`, but will eventually also export methods for adding custom fields, register translation, etc.
- cc: @shahednasser we should update the examples in the docs so these functions are imported from `@medusajs/admin-sdk`. People will also need to install the package in their project, as it's no longer a transient dependency.
- cc: @olivermrbl we might want to publish a changelog when this is merged, as it is a breaking change, and will require people to import the `defineXConfig` from the new package instead of `@medusajs/admin-shared`.
- Updates CODEOWNERS so /admin packages does not require a review from the UI team.
