Add pipe data loss debug logs and split test

[Caideyipi]

Summary

• Add [PipeDataLossDebug] debug traces across source query parsing, collector, sink batching/emitting, and receiver execution.
• Include TsFile metadata counts, parser input/output row counts, non-null/null/deleted field counts, tablet shape, batch size, and receiver status summaries.
• Add a UT covering the new evidence shape: 100 single-measurement time-series split patterns reading the same aligned TsFile concurrently.

Tests

• mvn spotless:apply -pl iotdb-core/datanode
• mvn spotless:check -pl iotdb-core/datanode
• git diff --cached --check before commit
• mvn -U -Ddevelocity.off=true -pl iotdb-core/datanode -Dtest=TsFileInsertionEventParserTest#testQueryParserKeepsPointsForHundredTimeSeriesSplitAlignedTsFile test failed before running tests because snapshot dependency resolution could not find org.apache.iotdb:iotdb-parent:pom:2.0.11-20260704.112325-1 in timecho.public.
• mvn -Ddevelocity.off=true -pl iotdb-core/datanode -am -DskipTests compile failed before DataNode at iotdb-thrift generated sources due local javax.annotation missing.