After signup, guide users through getting their first API key and configuring their MCP client.

Scope

• Detect first-time users (no API keys yet)
• Show copy-paste ready config snippets for Claude Code, Cursor, Qwen
• Guide through key generation
• Link to detailed docs
• Consider: auto-create first workspace?

UX considerations

• Technical users (early-adopter ICP) - don't over-hand-hold
• Terminal-native language
• Quick path to working MCP connection