chore(test): unify configs into pyproject.toml

.coveragerc

@@ -1,7 +0,0 @@
-[run]
-branch = True
-omit = */build/*,tests/*,main.py
-[report]
-exclude_lines =
-    pragma: no cover
-    raise NotImplementedError.*

pyproject.toml

@@ -71,3 +71,67 @@ markers = [
     "integration: marks tests as integration tests (deselect with '-m \"not integration\"')",
 ]
 
+[tool.coverage.run]
+source = ["src"]
+branch = true
+omit = [
+    "*/tests/*",
+    "*/test_*.py",
+    "*/__pycache__/*",
+    "*/.venv/*",
+    "*/site-packages/*",
+    "test.py",
+]
+
+[tool.coverage.report]
+precision = 2
+show_missing = true
+skip_covered = false
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if __name__ == .__main__.",
+    "if TYPE_CHECKING:",
+    "@abstractmethod",
+    "@abc.abstractmethod",
+]
+
+[tool.coverage.html]
+directory = "htmlcov"
+
+[tool.mypy]
+python_version = "3.13"
+warn_return_any = true
+warn_unused_configs = true
+disallow_untyped_defs = false
+disallow_incomplete_defs = false
+check_untyped_defs = true
+no_implicit_optional = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+warn_no_return = true
+strict_equality = true
+
+[[tool.mypy.overrides]]
+module = "tests.*"
+ignore_errors = true
+
+[[tool.mypy.overrides]]
+module = [
+    "regex.*",
+    "requests.*",
+    "bs4.*",
+    "ratelimit.*",
+    "pytest.*",
+    "pytest_mock.*",
+    "bibapi._transformers",
+    "bibapi.webrequest",
+    "bibapi.catalogue",
+    "bibapi.lehmanns",
+    "bibapi.schemas.bookdata",
+    "bibapi.sru",
+]
+ignore_missing_imports = true
+ignore_errors = true