Update README and pyproject.toml to clarify dev dependencies and add maturin[patchelf]

Author: gemenerik

README.md

@@ -41,10 +41,11 @@ See the [examples/](examples/) directory for more.
 
 ### Initial Setup
 
-1. **Install dependencies:**
+1. **Install dependencies (including dev tools):**
    ```bash
    uv sync --group dev
    ```
+   This installs the `dev` dependency group which provides `maturin`, `pre-commit`, `pytest`, and other development tools. Commands prefixed with `uv run` below require this group.
 
 2. **Install pre-commit hooks:**
    ```bash

pyproject.toml

@@ -46,6 +46,7 @@ Issues = "https://github.com/bitcraze/crazyflie-lib-python-v2/issues"
 
 [dependency-groups]
 dev = [
+    "maturin[patchelf]>=1.12.4",
     "pre-commit>=4.3.0",
     "pytest>=8.4.2",
     "pytest-asyncio>=0.24.0",