[To dev/1.3] [Pipe] Fix TsFile rate limit accounting (#18344)

[Caideyipi]

Description

Backport #18344 (f3f7d12) to dev/1.3.

• Apply TsFile rate limiting and disk I/O accounting after each read, using the actual number of bytes read.
• Avoid accounting for EOF reads and over-accounting the final partial chunk across air-gap, SSL sync, sync Thrift, and async Thrift transfer paths.
• Add unit coverage for async and air-gap TsFile transfer accounting.

The dev/1.3 branch uses the older non-V2 transfer request types, so the AirGap test conflict was resolved by retaining the 1.3 request types while adding the new byte-accounting assertion.

Verification

• mvn spotless:apply -pl iotdb-core/datanode,iotdb-core/node-commons
• mvn -Ddevelocity.off=true test -pl iotdb-core/datanode -Dtest=IoTDBDataRegionAirGapSinkTest,PipeTransferTsFileHandlerRateLimitTest (3 tests passed)

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This PR has:

• been self-reviewed.
• added or modified unit tests.