chore(dev): replace pyright with mypy and configure mypy rules

pyproject.toml

@@ -2,7 +2,7 @@
 requires-python = ">=3.8"
 
 [project.optional-dependencies]
-dev=["ruff", "pyright"]
+dev=["ruff", "mypy"]
 
 [tool.ruff]
 required-version = ">=0.9.10"
@@ -20,3 +20,14 @@ quote-style = "double"
 
 [tool.ruff.lint]
 extend-select = ["I"]
+
+[tool.mypy]
+python_version = "3.8"
+platform = "linux"
+# strict = true # TODO: enable this once everything is else is handled
+check_untyped_defs = true
+ignore_missing_imports = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+warn_return_any = true
+warn_unreachable = true