chore: add Trivy security scan

[AmberJBlue]

Summary by Sourcery

Add GitHub Actions workflow to perform Trivy vulnerability scans on pushes, pull requests, and manual triggers, enforce build failure on critical and high findings, and upload SARIF reports to the Security tab

CI:

• Introduce security-scan.yaml workflow using Trivy to scan the repository file system for vulnerabilities
• Configure the workflow to run on main branch events and manual dispatch, output SARIF results, and fail on critical/high severities
• Upload the generated SARIF report to GitHub Security tab for review

[sourcery-ai]

Reviewer's Guide

Introduce a GitHub Actions workflow that runs Trivy file-system vulnerability scans on push, pull requests, and manual dispatch, generates SARIF and table reports, enforces failure on critical/high findings, and uploads the SARIF output to the GitHub Security tab.

File-Level Changes

Change	Details	Files
Add security-scan workflow with Trivy integration	Configure triggers for push, pull_request, and workflow_dispatch Define Trivy scan job on ubuntu-latest with read and security-events write permissions Run filesystem scan to produce SARIF output Run filesystem scan to enforce failure on critical/high vulnerabilities Upload SARIF report to GitHub Security tab with error continuation	.github/workflows/security-scan.yaml

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[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

Prompt for AI Agents

Please address the comments from this code review:
## Individual Comments

### Comment 1
<location> `.github/workflows/security-scan.yaml:47` </location>
<code_context>
+        with:
+          sarif_file: trivy-results.sarif
+          category: trivy-security-scan
+        continue-on-error: true
</code_context>

<issue_to_address>
Using `continue-on-error: true` may hide upload failures.

This setting may cause missed security reports if uploads fail. Consider removing it or handling failures to ensure reliable reporting.
</issue_to_address>

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[sourcery-ai]

suggestion (bug_risk): Using continue-on-error: true may hide upload failures.

This setting may cause missed security reports if uploads fail. Consider removing it or handling failures to ensure reliable reporting.