feat(hosting): Offer classic stateless HTTP mode

Issue: APPAI-150

Author: timothedelion

packages/developer_mcp_server/src/developer_mcp_server/http_app.py

@@ -0,0 +1,19 @@
+"""ASGI application for MCP server over StreamableHTTP.
+
+This module exports the ASGI application for use with ASGI servers like gunicorn + uvicorn.
+It imports the configured MCP server and exposes its StreamableHTTP application.
+"""
+
+from fastmcp.server.http import create_streamable_http_app
+
+from developer_mcp_server.server import mcp
+
+# Note: We use StreamableHTTP with json_response=True and stateless_http=True to enable
+# fully stateless operation. This allows horizontal scaling without sticky sessions
+# since no session state is maintained between requests.
+http_app = create_streamable_http_app(
+    server=mcp,
+    streamable_http_path="/mcp",
+    json_response=True,
+    stateless_http=True,
+)

packages/developer_mcp_server/src/developer_mcp_server/sse_app.py

@@ -1,3 +1,10 @@
+"""ASGI application for MCP server over HTTP/SSE.
+
+Note: This SSE transport requires sticky sessions for horizontal scaling since
+session state is maintained in-memory per worker. For stateless operation,
+use http_app.py instead which uses StreamableHTTP with JSON responses.
+"""
+
 from fastmcp.server.http import create_sse_app
 
 from developer_mcp_server.server import mcp

packages/secops_mcp_server/src/secops_mcp_server/http_app.py

@@ -0,0 +1,34 @@
+"""ASGI application for MCP server over StreamableHTTP.
+
+This module exports the ASGI application for use with ASGI servers like gunicorn + uvicorn.
+It imports the configured MCP server and exposes its StreamableHTTP application.
+
+This module is specifically for production deployment with gunicorn.
+For local development, use the run_http_with_uvicorn() function instead.
+
+
+"""
+
+import logging
+
+from fastmcp.server.http import create_streamable_http_app
+from gg_api_core.sentry_integration import init_sentry
+
+from secops_mcp_server.server import mcp
+
+logger = logging.getLogger(__name__)
+
+# Initialize Sentry for production deployment
+init_sentry()
+
+# Note: We use StreamableHTTP with json_response=True and stateless_http=True to enable
+# fully stateless operation. This allows horizontal scaling without sticky sessions
+# since no session state is maintained between requests.
+app = create_streamable_http_app(
+    server=mcp,
+    streamable_http_path="/mcp",
+    json_response=True,
+    stateless_http=True,
+)
+
+logger.info("MCP application initialized for StreamableHTTP transport (stateless JSON mode)")

packages/secops_mcp_server/src/secops_mcp_server/sse_app.py

@@ -5,6 +5,10 @@
 
 This module is specifically for production deployment with gunicorn.
 For local development, use the run_http_with_uvicorn() function instead.
+
+Note: This SSE transport requires sticky sessions for horizontal scaling since
+session state is maintained in-memory per worker. For stateless operation,
+use http_app.py instead which uses StreamableHTTP with JSON responses.
 """
 
 import logging