Pipe: fix constructor of PipeTsFileInsertionEvent & filter out empty events on sender side

[VGalaxies]

Description

This PR is a fix and optimization for #11757, including the following:

1. Fixing the constructor of PipeTsFileInsertionEvent that caused issues with incorrect initialization of event time, and enhancing related integration tests.
2. Filtering out empty events on the sender side to reduce data traffic, while lowering the log level for parsing empty events to debug.

---

This PR has:

• been self-reviewed.
  • concurrent read
  • concurrent write
  • concurrent read and write
• added documentation for new or modified features or behaviors.
• added Javadocs for most classes and all non-trivial methods.
• added or updated version, license, or notice information
• added comments explaining the "why" and the intent of the code wherever would not be obvious
  for an unfamiliar reader.
• added unit tests or modified existing tests to cover new code paths, ensuring the threshold
  for code coverage.
• added integration tests.
• been tested in a test IoTDB cluster.

---

Key changed/added classes (or packages if there are too many classes) in this PR