Add new lint and format checks

CLAUDE.md

@@ -15,8 +15,10 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 | CSS (Tailwind) | `make css` |
 | Django shell | `make shell` |
 | Create superuser | `make createsuperuser` |
-| Format Python | `uv run ruff format` |
+| Format Python | `make format` (or `uv run ruff format`) |
-| Lint Python | `uv run ruff check` |
+| Lint Python | `make lint` (or `uv run ruff check`) |
+| Auto-fix lint | `make lint-fix` (`ruff check --fix`) |
+| Lint + format check + tests | `make check` (CI-style aggregate) |
 | Sync uv.lock | `uv sync` (after editing pyproject.toml) |
 
 ## Architecture

Makefile

@@ -67,6 +67,20 @@ uv.lock: pyproject.toml
 test: uv.lock
 	uv run --with pytest-django pytest
 
+lint:
+	uv run ruff check
+
+lint-fix:
+	uv run ruff check --fix
+
+format:
+	uv run ruff format
+
+format-check:
+	uv run ruff format --check
+
+check: lint format-check test
+
 date:
 	uv run python -c 'import datetime; from zoneinfo import ZoneInfo; print(datetime.datetime.isoformat(datetime.datetime.now(ZoneInfo("Europe/Prague")), timespec="minutes", sep=" "))'