Fix corrupted metadata for V5 non-record submission

[teslaeco]

Motivation

• The run folder contained corrupted/embedded-shell output in results.tsv and a malformed submission.json, and train.log contained embedded Python source instead of a standalone log, so metadata consumers would fail to parse or index the submission.

Description

• Replaced records/track_non_record_16mb/2026-04-17_V5_SP1024_SEQ4096_1xH100_121430168/submission.json with the exact valid JSON payload provided.
• Replaced records/track_non_record_16mb/2026-04-17_V5_SP1024_SEQ4096_1xH100_121430168/results.tsv with the exact 2-line, tab-separated TSV (header + one row) with 10 columns.
• Inspected train.log, found embedded Python source rather than a standalone run log, removed train.log from the run folder and removed it from the Included files list in README.md.
• Left final_model.int8.ptz and train_gpt.py unchanged.

Testing

• Parsed the new submission.json with python using json.load and it succeeded.
• Verified results.tsv has exactly 2 lines and each line has exactly 10 tab-separated columns with a small Python check.
• Verified git diff --stat shows the README change, replacement of results.tsv and submission.json, and deletion of train.log.
• Created a commit with message Fix corrupted metadata for V5 non-record submission.

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Codex Task