Enforce ruff/flake8-annotations rules (ANN)

Disable lots of rules for now, especially in tests.

pyproject.toml

@@ -206,6 +206,7 @@ extend-exclude = [
 
 [tool.ruff.lint]
 extend-select = [
+    "ANN", # flake8-annotations
     "B",   # flake8-bugbear
     "C4",  # flake8-comprehensions
     "FLY", # flynt
@@ -222,6 +223,10 @@ extend-select = [
     "UP",  # pyupgrade
 ]
 ignore = [
+    "ANN003",
+    "ANN101",
+    "ANN102",
+    "ANN401",
     "PT004",  # deprecated
     "PT011",  # TODO: apply this rule
     "PT012",  # TODO: apply this rule
@@ -247,6 +252,9 @@ ignore = [
     "ISC002",
 ]
 
+[tool.ruff.lint.extend-per-file-ignores]
+"tests/**" = ["ANN001", "ANN201"]
+
 [tool.mypy]
 python_version = "3.11"
 ignore_missing_imports = true