Add HTTP transport support for cloud deployment

Enables deployment to cloud platforms (Render, Railway, etc.) while maintaining
backward compatibility with existing stdio transport for Claude Desktop.

New features:
- HTTP server entry point (run_http_server.py) using uvicorn
- Docker containerization with Python 3.13
- Health check endpoint at /health
- Comprehensive deployment documentation for Render, Railway, and Docker

Technical changes:
- Added uvicorn dependency for ASGI server
- Created Dockerfile with optimized multi-stage build (343MB)
- Added .dockerignore for efficient Docker builds
- Implemented /health endpoint using Starlette JSONResponse
- Updated README.md and DEPLOYMENT.md with HTTP deployment guides

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

run_http_server.py

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+"""
+HTTP Server Entry Point for Nadlan-MCP
+
+This module provides an HTTP/SSE transport server for the Nadlan-MCP service,
+enabling deployment to cloud platforms like Render, Railway, or Docker containers.
+
+For local Claude Desktop integration, use run_fastmcp_server.py (stdio transport) instead.
+"""
+
+import os
+import sys
+import logging
+import uvicorn
+from nadlan_mcp.fastmcp_server import mcp
+
+# Configure logging
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+)
+logger = logging.getLogger(__name__)
+
+
+def main():
+    """Run the FastMCP server with HTTP transport using uvicorn."""
+    # Get port from environment variable (Render sets PORT automatically)
+    port = int(os.environ.get("PORT", 8000))
+    host = "0.0.0.0"
+
+    logger.info("=" * 60)
+    logger.info("Starting Nadlan-MCP HTTP Server")
+    logger.info("=" * 60)
+    logger.info(f"Transport: HTTP (via uvicorn)")
+    logger.info(f"Host: {host}")
+    logger.info(f"Port: {port}")
+    logger.info(f"MCP Endpoint: http://{host}:{port}/mcp")
+    logger.info(f"Health Check: http://{host}:{port}/health")
+    logger.info("=" * 60)
+
+    try:
+        # Get the HTTP ASGI app from FastMCP
+        # Try different possible method names based on FastMCP version
+        if hasattr(mcp, 'streamable_http_app'):
+            app = mcp.streamable_http_app()
+        elif hasattr(mcp, 'http_app'):
+            app = mcp.http_app()
+        elif hasattr(mcp, 'get_app'):
+            app = mcp.get_app()
+        else:
+            # Fallback: try to access the app directly
+            app = getattr(mcp, 'app', None)
+            if app is None:
+                raise AttributeError(
+                    "FastMCP instance has no HTTP app method. "
+                    "Available methods: " + ", ".join(dir(mcp))
+                )
+
+        logger.info(f"Using app: {type(app).__name__}")
+
+        # Run with uvicorn
+        uvicorn.run(
+            app,
+            host=host,
+            port=port,
+            log_level="info"
+        )
+    except Exception as e:
+        logger.error(f"Failed to start HTTP server: {e}", exc_info=True)
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()