[admin] Storage module

[dackers86]

Specification

Implement the Storage module for the Dart Firebase Admin SDK. This module provides server-side Cloud Storage operations including file upload, download, and management.

The implementation should achieve feature parity with the Node.js Admin SDK Storage module.

Dependencies:

• [admin] App module

Acceptance Criteria:

• Add code implementation
• Added unit tests
• Added integration tests
• Sample added to the samples folder
• Documentation added

[dackers86]

Update 09-02-2026

Google are looking to take responsibility for designing the GoogleAPi dependencies.

We may have to work weekly on this to understand what development can be added from Invertase side.