Handle null bytes in cast recordings

[chrismaddalena]

Summary

This is a small bug fix release that makes Ghostwriter a little better.

CHANGELOG

[7.2.7] - 22 September 2026

Fixed

• Fixed Asciinema recording uploads containing null characters that could cause the recording save transaction to fail.

[augmentcode]

🤖 Augment PR Summary

Summary: This hotfix prepares Ghostwriter 7.2.7 for release.

Changes:

• Sanitizes decoded NUL characters from asciicast input/output event text before storing searchable recording text.
• Adds parser-level and standard upload regression coverage for escaped \u0000 event data.
• Updates the changelog, application version, and release date for the 22 September 2026 release.

Technical Notes: The uploaded cast file remains unchanged; only the derived PostgreSQL-backed search text is sanitized.

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[augmentcode]

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[Copilot]

Copilot review overview

🟢 Approval recommended

No unresolved blocking issues were identified.

Review effort: Lite
Findings: None

What changed in this PR

Fixes Asciinema recording uploads containing null bytes that could prevent saving.

Changes:

• Strips NUL bytes from extracted recording text.
• Adds utility and upload regression tests.
• Updates release metadata and changelog to 7.2.7.

File	Description
VERSION	Updates release version metadata.
ghostwriter/​oplog/​utils.py	Sanitizes extracted event text.
ghostwriter/​oplog/​tests/​test_views.py	Tests NUL-containing uploads.
ghostwriter/​oplog/​tests/​test_utils.py	Tests NUL removal.
config/​settings/​base.py	Updates application version metadata.
CHANGELOG.md	Documents the fix.

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