refactor and rewrite for asyncio

pyproject.toml

@@ -3,8 +3,8 @@ requires = ["setuptools>=61.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
-name = "heartbeat"
-version = "0.1.0"
+name = "hbd"
+version = "5.0"
 description = "Heartbeat daemon (hbd) — receive heartbeats and act on them"
 readme = "README.md"
 requires-python = ">=3.10"
@@ -19,7 +19,8 @@ dependencies = [
   "websockets>=13.2",
   "mattermostdriver>=7.3.0",
   "PyYAML>=6.0",
-  "Jinja2>=3.1.0",s
+  "aiohttp>=3.8",
+  "Jinja2>=3.1.0",
   "fastapi>=0.95.0",
 ]
 
@@ -29,6 +30,10 @@ dev = [
   "pytest-cov>=4.0",
   "flake8>=5.0",
   "mypy>=1.10",
+  "black>=23.0",
+  "isort>=5.0",
+  "re-commit>=3.0",
+  "tox>=4.0",
 ]
 
 [project.scripts]