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LangGraph server lifecycle management for the CLI.
Handles starting/stopping a langgraph dev server process and generating the required langgraph.json configuration file.
langgraph dev
langgraph.json
Build the server base URL.
Generate a langgraph.json config file for langgraph dev.
Poll a LangGraph server health endpoint until it responds.
Manages a langgraph dev server subprocess.
Focuses on subprocess lifecycle (start, stop, restart) and health checking. Env-var management for restarts (e.g. configuration changes requiring a full restart) is handled by _scoped_env_overrides, keeping this class focused on process management.
_scoped_env_overrides
