Update version numbers across Rust, Python, and documentation files to 1.1.0. Enhance the .gitignore to include macOS dSYM files and plans directory. Introduce new dependencies in the Rust core library and update the README to reflect recent performance benchmarks and backtesting engine capabilities. Add new artifacts to the benchmarks manifest and improve documentation for the backtesting engine API.
Align the Rust, Python, WASM, Conda, docs, and lockfile version markers to 1.0.6 so the published artifacts and release automation agree on a single release number.
Add a proper 1.0.6 changelog entry in both CHANGELOG.md and the docs release notes, covering the pre-push gate, expanded Rust and WASM surface, benchmark refresh, and CI hardening work shipped since v1.0.4.
Validate the release preparation with the repo-managed pre-push suite so version, changelog, Rust, Python, docs, WASM, and API-manifest checks all pass before tagging.
