Cardano Updates

Skill for generating and iterating on GitHub release notes with evidence-based investigation workflow and formatting rules.

- DRep guide: fix CIP-129 rules from #683 (`type` inferred for prefixed ids, required for raw ids), keep 3 examples, and reorganize sections.

- Staking guide: add explicit prerequisite that reward withdrawal requires active DRep delegation.

- Pool operations guide: add per-operation required metadata and fix governance vote wording/section naming.

- Env vars guide: sync documented defaults with v2.1.0 values.

- DRep guide: fix CIP-129 rules from #683 (`type` inferred for prefixed ids, required for raw ids), keep 3 examples, and reorganize sections.

- Staking guide: add explicit prerequisite that reward withdrawal requires active DRep delegation.

- Pool operations guide: add per-operation required metadata and fix governance vote wording/section naming.

- Env vars guide: sync documented defaults with v2.1.0 values.

- Add yaci-store-admin-ui dependency to enable web-based administration
- Configure admin UI with "Cardano Rosetta Java Admin - Powered by Yaci Store" header
- Enable admin UI by default with sync controls disabled for safety
- Fix module version to inherit ${revision} from parent POM

Admin UI accessible at http://ip:port/admin-ui/

Co-authored-by: Mateusz Czeladka <[email protected]>

* feat: derive HTTP status from retriable flag in error responses

Map retriable=true → HTTP 500, retriable=false → HTTP 400 instead of
returning HTTP 500 for all errors.

* fix: update behavioral tests to expect HTTP 400 for non-retriable errors

Align test assertions with refactored HTTP status code mapping where
retriable=false errors now return HTTP 400 instead of 500.

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Co-authored-by: Lincon Vidal <[email protected]>

Align test assertions with refactored HTTP status code mapping where
retriable=false errors now return HTTP 400 instead of 500.

* feat: infer DRep type from CIP-129 and improve validation errors

* feat: update DRep delegation tests to infer types correctly

* fix: revert DRep error HTTP status to 500 per Rosetta specification