[core] Centralize negative predicate complements in sorted index readers

[JingsongLi]

Purpose

Follow up on #8945 by moving negative-predicate complement handling into sorted index readers.

• keep a single GlobalIndexer#createReader method and pass the shard-local total row count
• keep OffsetGlobalIndexReader focused on row-id coordinate translation
• share exact complement handling for IS NOT NULL, !=, and NOT IN in SortedFileGlobalIndexReader
• enable the optimized path for both BTree and Bitmap indexes
• derive the group-level row count in primary-key sorted-index scans, including merged multi-source groups
• handle empty row domains without constructing an invalid range

This removes the implicit supportsRangeComplement() protocol and makes the component that owns exact predicate evaluation responsible for complement semantics.

Tests

• mvn -pl paimon-common,paimon-core -Pfast-build -DfailIfNoTests=false -DwildcardSuites=none -Dtest=LazyFilteredBitmapIndexReaderTest,LazyFilteredBTreeIndexReaderTest,PrimaryKeySortedIndexScanTest,PrimaryKeyFullTextBucketSearchTest test
• mvn -pl paimon-common,paimon-core -Pfast-build -DskipTests clean test-compile
• mvn -pl paimon-full-text,paimon-lumina,paimon-vector -am -Pfast-build -DskipTests test-compile
• JAVA_HOME=<JDK11> mvn -Ppaimon-eslib -pl paimon-eslib -am -Pfast-build -DskipTests test-compile
• JAVA_HOME=<JDK11> mvn -pl paimon-flink/paimon-flink-common -am -Pfast-build -Pflink2 -DskipTests test-compile
• mvn -pl paimon-spark/paimon-spark-common -am -Pfast-build -Pspark3 -DskipTests test-compile
• mvn -pl paimon-common,paimon-core,paimon-full-text,paimon-lumina,paimon-vector -am -DskipTests compile
• JAVA_HOME=<JDK11> mvn -q -Ppaimon-eslib -pl paimon-eslib -am -DskipTests compile

[leaves12138]

Reviewed the complete two-commit change. The shard-local row-count propagation is consistent across data-evolution ranges, primary-key merged source groups, full-text archives, and vector segments. The centralized complement logic preserves SQL null semantics, handles empty row domains, and keeps offset translation correctly separated. Focused BTree, Bitmap, primary-key sorted-index, and primary-key full-text tests pass locally.