Add AUDIT.md: audit report for NQ-Swap backend engineer submission

[RolandDivine]

Motivation

• Add a comprehensive audit of the NQ-Swap Backend Engineer (Indexer & Data Architect) submission to document findings, scoring, critical gaps, and a hiring recommendation.

Description

• Add AUDIT.md containing a detailed review for candidate "Varun" that covers ingestion, sandwich detection, storage/partitioning, API, RPC failover, re-org strategy, scores, verdict, and actionable remediation suggestions.

Testing

• No automated tests were run for this documentation-only change.

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Codex Task

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Treat daily partitioning as unimplemented

This section gives storage credit for daily partitioning, but the repository never actually turns it on. init.sql creates a transactions_default partition and defines create_daily_partition(), yet a repo-wide search shows no trigger, cron job, or application call that invokes that function from docker-compose.yml, startup code, or src/. In a clean deployment every insert will land in the default partition, so the assignment's daily partitioning requirement is effectively unmet rather than partially satisfied.

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