## What & Why

<!-- Summarize the change and why it is needed. Link related issues. -->

## How Tested

- [ ] `cargo test` passes
- [ ] `cargo clippy --all-targets -- -D warnings` passes clean
- [ ] `cargo fmt --all -- --check` passes
- [ ] Verified against MT5/Wine locally (only if compile/backtest behavior changed)

## MCP Tool Impact

- [ ] No tool schema changes (if schemas changed, list affected tools below)
- [ ] Existing tool outputs unchanged (no breaking changes)
- [ ] Any new tool wired into definitions, handler, and dispatch table

<!-- Affected MCP tools: -->