[Meta]: Manufacturer plugins for the `MPMv1.1` Milestone

This is a meta issue to track the overall progress of all manufacturer API–related efforts targeted for the MPM v1.1 release.

The goal of this issue is to provide a centralized overview of ongoing work, ensuring alignment, visibility, and coordination across all manufacturer integrations.

### Purpose

- Integration with manufacturer APIs
- Standardization of communication patterns (where applicable)
- Handling of provider-specific edge cases
- Improvements or refactoring required to support these integrations

### Tracking Progress

- Please refer to the linked sub-issues for detailed progress, discussions, and implementation specifics.
- Each sub-issue represents a distinct integration or task contributing to the overall goal.
- Updates should be made directly within the respective sub-issues.

Start with the linked sub-issues for the MPM v1.1 manufacturer integrations, since this meta issue contains no implementation entry point or file. Review each integration's scope, communication patterns, provider-specific edge cases, and required refactoring; done means the relevant sub-issues are completed and the overall release work is aligned.

Written by the indexing model from the issue text.