feat!: check rlc when downloading fibre rows

[mcrakhman]

Overview

Now if the download failed we check rlc for the downloaded rows to filter rows with incorrect encoding.

Important: check the full description (https://linear.app/celestia/issue/PROTOCO-1330/check-encoding-correctness-rlc-when-downloading-rows) of the change and why it was made here before attempting to review.

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[claude]

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 6 additional findings.

[mcrakhman]

Overview

Now if the download failed we check rlc for the downloaded rows to filter rows with incorrect encoding.

Important: check the full description (https://linear.app/celestia/issue/PROTOCO-1330/check-encoding-correctness-rlc-when-downloading-rows) of the change and why it was made here before attempting to review.

Protobuf check fails, but it is fine, because we didn't release fibre, so I think we can change the definitions.

[rootulp]

Review comments below.

[rootulp]

Update: those were Claude generated review comments. I'm still manually reviewing, so far LGTM but haven't finished yet.

[rootulp]

LGTM. I don't have any other feedback besides the Claude generated comments above