Persist verify outcomes to SQLite

[sasidaran-99]

Before opening: make sure there is an issue tracking this work, and link it below. PRs without a linked issue may be closed without review.

Linked issue

Closes #

What this PR does

Type of change

• Bug fix
• New feature
• ML model / training pipeline
• Refactor (no behaviour change)
• Documentation
• Tests only

ML tier (if applicable)

• Tier 1 — Triage
• Tier 2 — Predictive
• Tier 3 — Autonomous
• Not ML-related

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Changes

Backend

Frontend

New dependencies

Database / schema changes

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Testing

How did you test this?

Checklist

• Tested locally end-to-end (upload ZIP or GitHub URL → scan → findings returned correctly)
• New ML model falls back gracefully when model file is absent
• No new console.error or unhandled Python exceptions introduced
• Added or updated tests where applicable
• requirements.txt / package.json updated if new dependencies added
• New model files (.pkl, .pt, etc.) are gitignored, not committed

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Anything reviewers should focus on

Screenshots (if UI changed)

[sasidaran-99]

@ionfwsrijan

I've completed the implementation for this issue, verified the functionality locally, and addressed the CI formatting feedback. All checks are now passing.

Could you please review the PR when you have a chance? If everything looks good, I'd appreciate it being merged.

[rushi-k12]

@ionfwsrijan it seems fine, go ahead