feat: added ruff for linting + requirements for local development

.gitignore

@@ -7,3 +7,5 @@ externals/
 .vagrant
 api/docs/api-docs.html
 *.code-workspace
+.vscode
+.venv

dev-requirements.txt

@@ -0,0 +1,16 @@
+rtyaml
+email_validator>=1.0.0
+exclusiveprocess
+flask
+dnspython
+python-dateutil
+expiringdict
+gunicorn
+qrcode[pil]
+pyotp
+idna>=2.0.0
+cryptography==37.0.2
+psutil
+postfix-mta-sts-resolver
+b2sdk
+boto3

ruff.toml

@@ -0,0 +1,4 @@
+exclude = ["tools/mail.py", "tools/readable_bash.py"]
+
+[lint]
+ignore = ["E701", "E401", "E722", "E741", "E402"]