squad init --client claude tells Claude users to run copilot --agent squad #2453

Found in the Claude Code end-to-end test for epic #2438 (fresh repo, dev build, 2026-11-10).

What happens: squad init --client claude finishes with:

Squad initialized. Run copilot --agent squad and tell it what you're building.
Tip: for non-interactive scripts that need squad_state tools, add to package.json:
  "squad:copilot": "copilot --agent squad --additional-mcp-config @.mcp.json"

Why it matters: a Claude Code user who asked only for --client claude is told to run Copilot. The right command for them is claude --agent squad --mcp-config .mcp.json, which is what the projected CLAUDE.md block already says.

Suggested fix: base the closing message and tip on the selected clients: show the Claude command when claude is selected, and both when several are.