Cardano Updates

  - Replace fail-fast `return` with `failedCount` counter so all 16 indexes
    are attempted even when one fails; overall state is READY only if
    failedCount == 0, otherwise FAILED (Tier 1.1)
  - Resolve current schema at init() and qualify all DROP INDEX statements
    as `<schema>.<index>` to avoid cross-schema matches (Tier 1.3)
  - Add guardrail comment: executeIndexCreation always re-queries pg_index
    per-index so any future retry path inherits drop-before-rebuild (Tier 1.2)
  - Update tests: mock current_schema(), fix DROP expectations, add
    continuesAfterSingleFailure test verifying both CREATE calls fire
    despite first failure

update code

## Summary

Hotfix release **2.1.2** bundling a yaci upgrade and improved gateway
logging.

## Commits

-
**[#742](https://github.com/cardano-foundation/cardano-rosetta-java/pull/742)
— fix: raise `SYNC_GRACE_SLOTS_COUNT` default to 200 and enrich gateway
error logs**
- Bumps the default sync grace window from 100 to 200 slots across env
files, Spring config, Helm values, and docs. The previous value caused
the `synced` flag on `/network/status` to flap when the HTTP link
between `rosetta-api` and `yaci-indexer` was briefly unstable.
- Enriches logs in `YaciHttpGatewayImpl` for both
`getStakeAccountRewards` and `getDiscoveredPeers`: non-2xx branches now
include the target URL and response body alongside the status code;
`IOException`/`InterruptedException` branches include the URL plus the
full cause chain so SSL and connection errors are visible.
-
**[#743](https://github.com/cardano-foundation/cardano-rosetta-java/pull/743)
— fix: bump yaci to 0.4.1 to fix chain sync on blocks with >23 txs**
- Picks up upstream [yaci
v0.4.1](https://github.com/bloxbean/yaci/releases/tag/v0.4.1), which
fixes a CBOR parsing error for blocks encoded with definite-length
arrays (>23 txs) that broke chain sync on preview. Also adds
configurable `TipFinder` timeouts.