Feat: add CLI MCP server auto-connect support

[meAmitPatil]

Summary

Enables users to automatically connect to MCP servers via CLI arguments.

Users can now run:

npx @mcpjam/inspector node build/index.js arg1 arg2

The server will automatically connect without manual setup, matching Anthropic's MCP Inspector behavior.

Changes

• Add CLI argument parsing in bin/start.js
• Add auto-connect logic in client hook
• Support both development and production modes
• Add API endpoint for development mode config

Closes #337

[meAmitPatil]

@matteo8p
Large diff explanation: Most of the +12,842 lines are from package-lock.json files due to dependency installations during development.

Core changes are small (~100 lines across 4 files):

• bin/start.js - CLI argument parsing logic (~24 lines)
• client/src/hooks/use-app-state.ts - Auto-connect logic (~45 lines)
• server/index.ts - API endpoint + config injection (~33 lines)
• .gitignore - Next.js entries (~5 lines)

[matteo8p]

Holy you're CRACKED

[matteo8p]

Gonna merge it and test it out