tarantool / go-config / 22759628652

Pull #21

github

tarantool: add builder for tarantool config assembly

Add the tarantool package with a Builder pattern for assembling
Tarantool-compatible configuration from multiple sources.

- Support config file, config directory, centralized storage, and
  environment variables.
- Process sources in priority order:
  default-env < file/dir < storage < env.
- Support inheritance: Global → groups → replicasets → instances
  with MergeDeep for credentials, MergeAppend for roles, and
  NoInherit for leader.
- Validate configuration against JSON Schema (fetched from
  download.tarantool.org or provided).
- Allow runtime mutation with BuildMutable.
- Add NewKeyPathFromSegments to create KeyPath from a slice of
  segments.
- Fix env collector to skip emitting empty tree when no environment
  variables match, avoiding overwriting of existing values during
  merge.

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