Transport abstraction layer with fallback mechanisms.

Provides a unified interface for transport selection and automatic fallback when primary transports fail. Supports configuration-based transport priority and health checking.

Features

• Smart transport selection: Automatically choose best available transport
• Fallback mechanisms: Try multiple transports in priority order
• Health checking: Verify transport availability before use
• Configuration-driven: Define transport priorities via config
• Error recovery: Handle transport failures gracefully

Example

opts = [
  transports: [
    {ExMCP.Transport.HTTP, [url: "http://localhost:8080"]},
    {ExMCP.Transport.Stdio, [command: "my-server"]},
    {ExMCP.Transport.SSE, [url: "http://localhost:8080/events"]}
  ],
  fallback_strategy: :sequential,
  health_check_timeout: 5_000
]

{:ok, {transport_mod, transport_state}} = TransportManager.connect(opts)