feat(cli): add kimi and qwen presets to happy acp

[taiyiops]

Summary

happy acp ships presets for gemini and opencode, but Kimi Code CLI (kimi acp) and Qwen Code (qwen --acp) both speak ACP too, so users have to spell the long form (happy acp -- kimi acp). This PR adds kimi and qwen to KNOWN_ACP_AGENTS so happy acp kimi / happy acp qwen [args] just work, with passthrough args preserved. No behavior change for existing aliases.

Proof

resolveAcpAgentConfig on this branch (run with tsx):

$ resolveAcpAgentConfig(['kimi'])
{"agentName":"kimi","command":"kimi","args":["acp"]}
$ resolveAcpAgentConfig(['qwen','--model','qwen3-coder'])
{"agentName":"qwen","command":"qwen","args":["--acp","--model","qwen3-coder"]}

The target commands exist as documented by the vendors (Kimi Code CLI 0.39.1 on my machine):

$ kimi acp --help
Usage: kimi acp [options]
Run kimi-code as an Agent Client Protocol (ACP) server over stdio.

Qwen Code's flag is --acp (also accepts --experimental-acp).

Unit tests (packages/happy-cli, vitest run --project unit src/agent/acp/acpAgentConfig.test.ts): 9 passed, including new cases for both presets. tsc --noEmit clean.

Notes

• Kimi runs ACP over stdio exactly like OpenCode; I use happy acp kimi from a self-hosted happy server on a daily basis via the -- form today, this only shortens it.
• No changes to sync/RPC/encryption/server.

🤖 Generated with Claude Code

https://claude.ai/code/session_01QBfUsLSj8DBVvVmHSqCDqZ