feat(mlflow): add license field wiring pattern (KOTS Config to app ConfigMap)

Parent epic: #166
Integration branch: feat/mlflow-enterprise-patterns

Wire KOTS license entitlements through Config → HelmChart CR values → application ConfigMap so the app can consume license fields like tier and max_users.

Scope

• Add Config items to release/kots-config.yaml using {{repl LicenseFieldValue "tier"}} and {{repl LicenseFieldValue "max_users"}}
• Map Config items into HelmChart CR values in release/mlflow-chart.yaml as values.license.*
• Create charts/mlflow/templates/license-configmap.yaml that reads .Values.license.* and creates a ConfigMap for app consumption
• Add license section to charts/mlflow/values.yaml with defaults

Files touched

• applications/mlflow/release/kots-config.yaml (add license Config items)
• applications/mlflow/release/mlflow-chart.yaml (add license values mapping)
• applications/mlflow/charts/mlflow/templates/license-configmap.yaml (new file)
• applications/mlflow/charts/mlflow/values.yaml (add license section)

PR target

Branch PRs to feat/mlflow-enterprise-patterns (not main).

Start by reading the existing patterns in applications/mlflow/release/kots-config.yaml and applications/mlflow/release/mlflow-chart.yaml, then inspect charts/mlflow/values.yaml and its templates. Add the tier and max_users flow across the four named files, and verify that the resulting application ConfigMap exposes those license fields when deployed through the integration branch.