Remove digitallink_toolkit_server local dependency

[ashleythedeveloper]

The services package depends on digitallink_toolkit_server via a local file: reference (file:../../digitallink_toolkit_server). This dependency is not published to npm, which means:

• The package cannot be consumed externally without subpath exports that bypass the main entry point
• Tests that transitively import from the main entry fail in any environment where the local directory doesn't exist
• It forces the published package to exclude it from dependencies entirely, creating a runtime mismatch between the workspace and the published artifact

Current Workaround

Subpath exports (./encryption, ./key-provider) let external consumers avoid the main entry point. The barrel files document this with a Remove once digitallink_toolkit_server is eliminated comment.

Expected Outcome

Replace digitallink_toolkit_server with a published npm package or inline the required functionality, so the main entry point works without local file dependencies.

Affected Files

• packages/services/package.json (the file: dependency)
• packages/services/src/linkResolver.service.ts (imports from it)
• packages/services/src/identityProviders/GS1Provider.ts (imports from it)

[ashleythedeveloper]

Done. The dependency is no longer in packages/services/package.json.