Support Schema 1.2

[rhamzeh]

Checklist

• I agree to the terms within the OpenFGA Code of Conduct.

Describe the problem you'd like to have solved

As part of our Modular Models work, we are introducing a new schema version: 1.2, which should be accepted by the API.

Describe the ideal solution

• Update to a version of the API that supports module and filename in the metadata
• Add the enum:

  openfga/pkg/typesystem/typesystem.go

  Line 28 in 314357d

  SchemaVersion1_1 string = "1.1"

• Add it as supported:

  openfga/pkg/typesystem/typesystem.go

  Line 36 in 314357d

  case SchemaVersion1_1:

• Mark it as has type info:

  openfga/pkg/typesystem/typesystem.go

  Line 392 in 314357d

  if t.GetSchemaVersion() == SchemaVersion1_1 && r.GetTypeInfo() != nil {

  ,

  openfga/pkg/typesystem/typesystem.go

  Line 1018 in 314357d

  if t.GetSchemaVersion() == SchemaVersion1_1 {

• Ensure additional 1.1+ validations run on it: https://github.com/openfga/openfga/blob/main/internal/validation/validation.go#L338, https://github.com/openfga/openfga/blob/main/internal/validation/validation.go#L372
• Make any other necessary changes such as: https://github.com/openfga/openfga/blob/main/internal/graph/check.go#L694

Alternatives and current workarounds

No response

Additional context

No response