Add TDD task runners

Author: leotulipan

Makefile

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+.PHONY: tdd test red green refactor lint format typecheck
+
+# Red/Green/Refactor loop
+red:
+	uv run pytest
+
+green:
+	uv run pytest
+
+refactor:
+	uv run ruff check .
+	uv run ruff format .
+	uv run mypy src
+
+# Shortcuts
+
+tdd: red green refactor
+
+test:
+	uv run pytest
+
+lint:
+	uv run ruff check .
+
+format:
+	uv run ruff format .
+
+typecheck:
+	uv run mypy src

justfile

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+# TDD loop commands
+
+tdd:
+  desc: Red/Green/Refactor
+  cmds:
+    - uv run pytest
+    - uv run pytest
+    - uv run ruff check .
+    - uv run ruff format .
+    - uv run mypy src
+
+red:
+  desc: Red - write failing test
+  cmds:
+    - uv run pytest
+
+green:
+  desc: Green - make tests pass
+  cmds:
+    - uv run pytest
+
+refactor:
+  desc: Refactor with checks
+  cmds:
+    - uv run ruff check .
+    - uv run ruff format .
+    - uv run mypy src
+
+lint:
+  cmds:
+    - uv run ruff check .
+
+format:
+  cmds:
+    - uv run ruff format .
+
+typecheck:
+  cmds:
+    - uv run mypy src
+
+test:
+  cmds:
+    - uv run pytest