[core] Prune manifest blocks with sidecars during scans

[leaves12138]

Purpose

Wire manifest sidecars into Java scans, following the format (#9845), lifecycle (#9886), and writer (#9889) changes. Extracted from #9743 after rebasing the tracking PR onto current master.

• Reuse manifest.sidecar.enabled; no additional read option is introduced.
• Select physical Avro blocks using partition, row-ID and conservative bucket predicates before reading manifest entries. Empty selections skip the manifest body entirely.
• Preserve normal entry filters, statistics filtering, conversion and ADD/DELETE reconciliation.
• Follow only explicit sidecar references. Missing, corrupt or unsupported sidecars fall back to ordinary manifest reads. Disabled sidecars and scans without relevant filters skip sidecar access.
• Share the manifest byte cache with sidecar and selected-block reads, keeping block keys separate from whole-manifest entry keys. Partial results cannot populate the whole-manifest entry cache.
• Preserve the existing ManifestFile.read overloads for callers that do not supply a block selection.

No file-format, writer, lifecycle or Python changes are included.

Tests

Java 8: 195 targeted tests passed with Checkstyle and Spotless enabled.

Tests cover row-ID, partition-only and bucket-only pruning; nullable coverage; real seek/byte-read accounting; repeated partial/all-block cache reads; explicit/custom references; disabled and unfiltered reads; missing/corrupt sidecar fallback while preserving deletes and overlapping row-ID groups; and existing data-evolution, bucket-filter, primary-key and global-index scans.

mvn -B -ntp -nsu -pl paimon-core -am -DwildcardSuites=none -DfailIfNoTests=false -Dflink.forkCount=2 \
  -Dtest=ManifestFileTest,ManifestSidecarTest,ManifestSidecarWriteTest,ManifestBlockIndexTest,DataEvolutionFileStoreScanTest,BucketFilterScanTest,KeyValueFileStoreScanTest,DataEvolutionBatchScanTest test