docs: update README with full feature docs

[piotrski]

Summary

• Add features list, architecture diagram, CLI usage, connecting a React app, and development sections to the README

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Remove or implement the MCP server command

The README advertises an MCP server and a serve-mcp CLI command, but the CLI implementation only supports start|stop|status|get|find|count (see packages/agent-react-devtools/src/cli.ts) and there is no MCP server wiring anywhere in the package (no @modelcontextprotocol/sdk usage). As written, running agent-react-devtools serve-mcp will hit the unknown-command path and fail; either implement the MCP server entrypoint or remove the documentation to avoid a broken user flow.

Useful? React with 👍 / 👎.

[chatgpt-codex-connector]

Remove or implement profiling CLI commands

The README lists a suite of profile subcommands, but the CLI and IPC types do not define any profile commands (only get-tree, get-component, find, and count are supported in packages/agent-react-devtools/src/cli.ts and packages/agent-react-devtools/src/types.ts). Users following the README will get “Unknown command” for any agent-react-devtools profile ... invocation; either implement these subcommands or update the docs to match the current capabilities.

Useful? React with 👍 / 👎.