feat(derive): Span batch prefix checks

[clabby]

Overview

Adds the checks for the span batch prefix.

[clabby]

• feat(derive): Span batch prefix checks #592 👈
• feat(derive): BatchStream buffering #590
• main

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[refcell]

This looks good!

[codecov]

Codecov Report

Attention: Patch coverage is 64.61538% with 46 lines in your changes missing coverage. Please review.

Project coverage is 79.9%. Comparing base (40a47f0) to head (297e116).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
crates/derive/src/batch/span_batch/batch.rs	61.7%	36 Missing ⚠️
crates/derive/src/stages/batch_stream.rs	78.7%	7 Missing ⚠️
crates/derive/src/pipeline/builder.rs	0.0%	2 Missing ⚠️
crates/derive/src/batch/mod.rs	0.0%	1 Missing ⚠️

Additional details and impacted files

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