Added Ruff linting

pyproject.toml

@@ -0,0 +1,28 @@
+[tool.ruff]
+line-length = 120
+target-version = "py312"
+[tool.ruff.lint]
+select = [
+	"E", "F", # pycodestyle errors, pyflakes (unused imports/variables, undefined names)
+	"I", # import sorting (replaces isort)
+	"B", # bugbear: likely bugs
+	"ASYNC", # async mistakes
+	"RUF006", # un-referenced asyncio.create_task (tasks can be garbage-collected)
+]
+ignore = ["E501"]
+
+[tool.ruff.lint.isort]
+known-first-party = ["db_module", "metrics_server", "rabbitmq_handler", "secret_manager",
+					"simple_logger_handler", "uvicorn_logger_config", "validator"]
+
+[tool.ruff.format]
+indent-style = "tab"
+
+[tool.ruff.lint.flake8-bugbear]
+extend-immutable-calls = [
+	"fastapi.Depends",
+	"fastapi.Query",
+	"fastapi.Header",
+	"fastapi.Body",
+	"fastapi.Security",
+]