Add pre-commit config with ruff and prettier hooks

- Add .pre-commit-config.yaml with ruff (check + format) and prettier hooks
- Extend ruff and prettier hooks to cover Jupyter notebooks, YAML, and CSS
- Add ruff format --check to CI lint workflow
- Add pre-commit to dev dependencies

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: danielkiv

.github/workflows/lint.yml

@@ -14,5 +14,6 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.12"
-      - run: pip install ruff>=0.5.0
+      - run: pip install "ruff>=0.5.0"
       - run: ruff check src/
+      - run: ruff format --check src/

.pre-commit-config.yaml

@@ -0,0 +1,15 @@
+repos:
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v3.1.0
+    hooks:
+      - id: prettier
+        types_or: [markdown, yaml, css]
+
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.14.3
+    hooks:
+      - id: ruff
+        types_or: [python, jupyter]
+        args: ["--fix", "--show-fixes"]
+      - id: ruff-format
+        types_or: [python, jupyter]

pyproject.toml

@@ -68,6 +68,7 @@ dev = [
   "pytest-cov>=4.1",
   "pytest-xdist>=3.0",
   "ruff>=0.5.0",
+  "pre-commit>=3.0",
 ]
 
 [project.scripts]