Adds integration test demonstrating gateway launch via pipes (standard pipe and named FIFO), similar to start_mcp_gateway_server.sh pattern in gh-aw.

Changes

Shell Script (test/integration/start_gateway_with_pipe.sh)

• Implements two pipe mechanisms:
  • Standard pipe: echo "$CONFIG_JSON" | awmg --config-stdin
  • Named FIFO: mkfifo → write config → gateway reads from pipe
• Environment-driven configuration (binary path, port, mode, pipe type)
• Cleanup handling with NO_CLEANUP flag for test control

Integration Tests (test/integration/pipe_launch_test.go)

• Tests 4 scenarios: {standard, named} × {routed, unified}
• Validates health checks and MCP initialize flow
• Script validation tests for error paths

Example Usage

# Standard pipe
BINARY=./awmg PORT=8000 MODE=--routed PIPE_TYPE=standard ./start_gateway_with_pipe.sh

# Named pipe (FIFO)
BINARY=./awmg PORT=8001 MODE=--unified PIPE_TYPE=named ./start_gateway_with_pipe.sh

Demonstrates stdin-based config for containerized deployments where file-based config isn't suitable.

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.