Leak detection

[frank0277]

Leak scan baseline

• Dataset: 10,000 announcements
• Iterations: 10,000
• Heap slope: X MB/sample
• Heap snapshots generated successfully
• Local runtime: Y seconds
  Closes Long-running scan memory profiling + leak detection #56

[truthixify]

@frank0277 — this PR is currently empty (no changes vs develop). Looks like the leak-detection commits haven't been pushed yet, or the branch base is wrong.

# Confirm your work is committed locally
git log origin/develop..HEAD --oneline
# Then push
git push -u origin <branch-name>

Once the actual leak-detection / memory-profiling work is in, I will merge.

[drips-wave]

@frank0277 Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits

[truthixify]

Clean merge. 133-line leak detection harness + 129-line property tests + scan path tweaks across chain modules. Thanks @frank0277.