Rust Elite Standards (Edition 2024)

Architecture

• Edition: Must use Rust Edition 2024.
• Dependencies: Use Standard Polars 0.52.x (ensure patch version compatibility).

Safety & Error Handling

• No Panic Policy: Strictly forbid unwrap() and expect() in business logic.
• Typed Errors: Use thiserror for library errors and anyhow for application-level errors.
• Async: Use tokio for async runtime unless specified otherwise.

Testing & Quality (Atomic Simulator VAS)

• TDD Requirement: "No Test, No Commit". Every feature must have a "Red Phase" failing test before logic implementation.
• Performance Benchmarks: Core operations (e.g., Ledger queries) must meet sub-100ms targets for 1000 rows.
• Verification: Every Mission must conclude with a walkthrough.md documenting test results.