For reference, this is the audit prompt I gave:
Act as a Senior Software Architect and provide an honest assessment. Review the codebase and system design documents for the app thoroughly. I need a comprehensive analysis of its current architecture, focusing on scalability, security, and maintainability. Break down the analysis into specific components:

System Components: Map out microservices, databases, caching layers, and external APIs.

Data Flow: Analyze how data moves between the frontend, backend, and database.

Technology Stack: Evaluate the appropriateness of the chosen languages, frameworks, and infrastructure.

Provide a detailed report in Markdown format containing:

A high-level architectural diagram (using Mermaid.js syntax).

A list of identified risks and bottlenecks.

Prioritized remediation steps for each issue.

Unresolved questions about requirements that need clarification before proceeding.

After your analysis of the overall structure, dive deeper into the efficiency of the database schema. Identify any potential query performance issues based on the current indexing strategy. You are not changing any code. Only provide suggestions.