fix(deps): bump mammoth to 1.12.3

[waleedlatif1]

Summary

• Pin mammoth to 1.12.3 (from 1.12.0) for upstream document-parsing fixes
• No API changes; existing convertToHtml / extractRawText usage is unchanged

Type of Change

• Bug fix

Testing

• Added a DOCX parser case to parser-formats.test.ts; red on 1.12.0, green on 1.12.3
• lib/file-parsers + lib/knowledge/documents suites (617 tests), full bun run test, bun run lint, check-block-registry, bun run check:audits, docs-manifest:check

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing (new tests pass the test-audit authoring gate)
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

[vercel]

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Project	Deployment	Actions	Updated
docs	Ready	Preview	Oct 2, 2026 3:46pm UTC

[cubic-dev-ai]

No issues found across 3 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}

[greptile-apps]

Confidence Score: 5/5

[High risk] Bumps a document-parsing dependency to a new minor version.

The PR appears safe to merge; no blocking issue was identified.

Summary

The PR pins mammoth to 1.12.3 and adds a DOCX regression test for an unrecognized style type.

• The lockfile matches the new exact dependency pin.
• No actionable issue was established in the changed code.

_{Reviews (1) · Last reviewed commit: "fix(deps): bump mammoth to 1.12.3"}