- Added `.zed/settings.json` to configure rust-analyzer with `leptosfmt`.
- Created `rustfmt.toml` with max width 120 and comment wrapping settings.
- Applied consistent formatting across all modified crates using rustfmt.
- Reorganized import statements and improved code style in multiple modules.
- Updated `Cargo.toml` and `Cargo.lock` to downgrade `rand_core` to 0.6.4 and add `rand_chacha` dependency with `serde1` feature.
- Implemented `Rng` struct wrapping `ChaCha8Rng` with seed initialization, stream selection, and number generation methods.
- Added `rng_new`, `rng_from_seed`, `rng_set_stream`, `rng_next_u32`, `rng_next_u64`, `rng_fill_bytes`, `rng_gen_f32`, and `rng_gen_gaussian` functions.
- Made `value` field in `Score` and `values` field in `OptimizationResult` public.
- Implemented `Distribution::sample` method that generates Gaussian numbers when moments are available.
- Added `From<f32>` implementation for `Score`.
- Implemented `optimize` function that evaluates candidates using cloned RNG streams and returns sorted results.
- Added integration test `test_optimize` that verifies optimization sorting behavior.
