Define QuotaScope GQL types and wire Adapter

Define Strawberry GQL types for QuotaScope backed by v2 DTOs (common/dto/manager/v2/quota_scope/) and create the QuotaScope Adapter layer.

Scope:
- QuotaScopeGQL node type (from QuotaScopeNode DTO)
- SetQuotaInputGQL / UnsetQuotaInputGQL input types
- SetQuotaPayloadGQL / UnsetQuotaPayloadGQL / GetQuotaScopePayloadGQL payload types
- QuotaScopeFilterGQL / QuotaScopeOrderByGQL filter/order types
- QuotaScopeAdapter (api/adapters/quota_scope.py) calling existing service actions
- Module __init__.py exports

Target files:
- api/gql/quota_scope/types/ (node.py, mutations.py, filters.py, __init__.py)
- api/adapters/quota_scope.py

## Success Criteria
- [ ] All GQL types compile and match v2 DTO field names
- [ ] Adapter correctly calls Get/Search/Set/Unset QuotaScope service actions
- [ ] pants check passes for affected packages

JIRA Issue: BA-5429