fix: restore strict WASM SDK baseline

[josedab]

Summary

• Normalizes formatting, clears strict Clippy findings, and corrects stale browser telemetry assertions.
• Preserves repository public contracts while restoring or strengthening the verification baseline.
• Includes an AUDIT.md where the repository reached the audit/refactor phase.

Commits

• b788fea style(wasm): normalize Rust formatting baseline
• 5cb4bca fix(wasm): restore strict lint baseline
• 5857845 docs(wasm): record clean-code audit

Validation

311 native tests, strict Clippy/fmt, WASM builds, and headless Chrome tests pass; GitHub checks are green.

Known blockers / deferred work

• None beyond required PR checks and documented AUDIT.md deferrals.

Merge readiness

Ready for review. Merge only after all required GitHub checks and reviewer approvals pass.