bank-mcp

## What <!-- Brief description of the change --> ## Why <!-- What problem does this solve? Link to issue if applicable: Fixes #123 --> ## How <!-- Key implementation details, if not obvious from the diff --> ## Checklist - [ ] Tests pass (`npm test`) - [ ] Linting passes (`npm run lint`) - [ ] Build succeeds (`npm run build`) - [ ] New provider? Registered in `src/providers/registry.ts` - [ ] New tool? Added to README tools table - [ ] Breaking change? Documented in commit message