refactor: improve config loader validation with Pydantic schemas

- Replace manual field type validation with Pydantic model schemas
- Add pydantic>=2.0 as core dependency
- Fix sync wrapper in decorator to properly handle rate limiting
- Update pyright settings for stricter type checking
- Fix repository URL in pyproject.toml
- Remove unused main.py
- Update test assertions for new validation error format

pyproject.toml

@@ -22,6 +22,7 @@ classifiers = [
     "Typing :: Typed",
 ]
 dependencies = [
+    "pydantic>=2.0",
     "starlette>=0.27.0",
 ]
 
@@ -43,7 +44,7 @@ dev = [
 
 [project.urls]
 Documentation = "https://gitlab.com/zanewalker/fastapi-traffic#readme"
-Repository = "https://github.com/zanewalker/fastapi-traffic"
+Repository = "https://gitlab.com/zanewalker/fastapi-traffic"
 Issues = "https://gitlab.com/zanewalker/fastapi-traffic/issues"
 
 [build-system]
@@ -108,8 +109,8 @@ reportUnknownVariableType = false
 reportUnknownParameterType = false
 reportMissingImports = false
 reportUnusedFunction = false
-reportInvalidTypeArguments = false
-reportGeneralTypeIssues = false
+reportInvalidTypeArguments = true
+reportGeneralTypeIssues = true
 
 [tool.pytest.ini_options]
 asyncio_mode = "auto"