Add message queue for SSE messages POST endpoint (#459)

pyproject.toml

@@ -37,6 +37,7 @@ dependencies = [
 rich = ["rich>=13.9.4"]
 cli = ["typer>=0.12.4", "python-dotenv>=1.0.0"]
 ws = ["websockets>=15.0.1"]
+redis = ["redis>=5.2.1", "types-redis>=4.6.0.20241004"]
 
 [project.scripts]
 mcp = "mcp.cli:app [cli]"
@@ -55,6 +56,7 @@ dev = [
     "pytest-xdist>=3.6.1",
     "pytest-examples>=0.0.14",
     "pytest-pretty>=1.2.0",
+    "fakeredis==2.28.1",
 ]
 docs = [
     "mkdocs>=1.6.1",