🛡️ Sentinel: [HIGH] Fix command-line password exposure in mysqldump backup

[docxology]

🚨 Severity: HIGH
💡 Vulnerability: Command-line password exposure in mysqldump command in src/codomyrmex/database_management/backup/backup_manager.py. Passing a password via -p to mysqldump allows the password to be visible in plaintext to anyone who runs ps, top, or views system logs while the command is executing.
🎯 Impact: An attacker with low privileges could view the database password, potentially leading to unauthorized access.
🔧 Fix: Removed the -p argument from the mysqldump command. Instead, the password is provided via the MYSQL_PWD environment variable by explicitly passing env=env to subprocess.run(), keeping the password hidden from process listings.
✅ Verification: Ran uv run ruff check and uv run pytest src/codomyrmex/tests/unit/database_management/ and ensured that all tests pass.

---

PR created automatically by Jules for task 7191871047980588522 started by @docxology

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.

[github-actions]

🤖 Hi @docxology, I've received your request, and I'm working on it now! You can track my progress in the logs for more details.

[github-actions]

🤖 I'm sorry @docxology, but I was unable to process your request. Please see the logs for more details.