feat(api): expose runtime parameters over admin rpc

[317787106]

What does this PR do?

Adds the admin_getRuntimeParameters method on top of the Admin RPC and IPC transport introduced by #82.

• Exports an explicit top-level @Exportable allowlist from the active runtime parameter implementation.
• Excludes committee and governance defaults whose effective values are maintained by the database.
• Returns top-level keys in field-name lexicographical order.
• Uses explicit snapshots for Genesis, Storage, and P2P configuration instead of recursively exposing implementation objects.
• Exports genesis account names as UTF-8 strings and account/witness addresses as configuration-compatible Base58Check strings.
• Includes database option overrides, cache strategies, and configured Merkle roots in the Storage snapshot.
• Excludes runtime-discovered P2P seed, active, and trust peers as well as the node ID.
• Omits eventPluginConfig.dbConfig and recursively redacts secret-like fields; DNS credentials are explicitly redacted.
• Builds and publishes dynamic node lists as complete snapshots so callers do not observe transient empty or partially updated values.

Why is this separate?

Runtime configuration export has a wider review surface than the Admin RPC transport itself: it defines a public allowlist, traverses nested configuration objects, filters secrets, and requires consistency while dynamic configuration is being reloaded. Keeping it in a stacked PR makes the transport changes in #82 easier to review independently.

Dependency

This PR is based on feature/admin_rpc and should be reviewed and merged after #82. Once #82 is merged, the base can be changed to develop.

Testing

• CommonParameterExporterTest
• DynamicArgsTest
• RelayServiceTest
• EffectiveCheckServiceTest
• IpcClientTest
• IpcServiceTest
• checkstyleMain and checkstyleTest
• Semgrep Java, security-audit, and OWASP Top Ten rulesets
• Targeted FindSecBugs scan of changed production classes

All listed tests and checks pass locally on JDK 17 / aarch64. The known flaky IpcServiceTest.testStopClosesActiveClientSocket passed on Gradle retry.