chore(audit): add Protofire Sep-2026 report

[thedavidmeister]

Adds the second Protofire review to audit/protofire/, anchored in the filename to the audited commit 092293e (sol-v0.1.27) so the org-health scanner picks it up. No findings at any severity.

Closes #118

QA

• Discriminating tests: n/a - the diff adds one binary PDF and no code, so there is no behaviour to test.
• Mutations applied: n/a - no source lines changed, nothing to mutate.
• Oracle: the file is the attachment on Audit report PDF #118 byte for byte (sha256 f55ac46d945c5e87f24c82dc58f13bc53210878ff269a6d586edb4bc02cb7ef7); the anchor commit is the second row of the Reviews table on page 3 of the report, and that commit is the sol-v0.1.27 tag.
• Category check: Audit report PDF #118 asks for the audit report PDF to be uploaded; covered by committing it at the audit/protofire/<repo>.<audited commit>.<mon-yyyy>.pdf path the existing Feb-2026 report uses.

🤖 Generated with Claude Code

[coderabbitai]

Important

Review skipped

Review was skipped due to path filters

⛔ Files ignored due to path filters (1)

• audit/protofire/rain.lib.hash.092293e9f180a6df6c4fdfae5461870c117c0fb9.sep-2026.pdf is excluded by !**/*.pdf

CodeRabbit blocks several paths by default. You can override this behavior by explicitly including those paths in the path filters. For example, including **/dist/** will override the default block on the dist directory, by removing the pattern from both the lists.

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• Plan: Advanced
• Run ID: 297bbffc-25d0-4a3a-8dae-67111d3c3933

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[linear]

RAI-2871