feat: add Kimi Code plugin manifest

[wbxl2000]

Summary

Add .kimi-plugin/plugin.json, a plugin manifest for Kimi Code, so the Vercel plugin can be installed and used in Kimi Code alongside the existing Claude Code (.claude-plugin/), Cursor (.cursor-plugin/), and open-plugin (.plugin/) manifests.

What it includes

• skills: ./skills — all 29 Vercel skills, available on-demand
• commands: ./commands — the 5 slash commands (/vercel-plugin:deploy, etc.)
• mcpServers: the vercel HTTP MCP server (https://mcp.vercel.com)
• Standard metadata (name, version, description, keywords, homepage, license, author, interface)

What it intentionally omits

• hooks: the existing hooks/hooks.json handlers are Claude-Code-specific (they reference ${CLAUDE_PLUGIN_ROOT} and write to CLAUDE.md, which Kimi Code does not read). Porting them needs a Kimi-compatible handler, which can be a follow-up.
• agents: Kimi Code does not yet support plugin-provided sub-agents. This can be added once it does.

Verification

• bun run validate --coverage skip passes (the validate script checks .plugin/plugin.json only and is unaffected by the new .kimi-plugin/plugin.json).
• Installed locally in Kimi Code from this branch: skills, commands, and the MCP server are discovered and work as expected.

[Melkeydev]

Let's uptick the version for all the deps and then LGTM

[wbxl2000]

Rebased and signed — approval went stale, could you re-approve to merge?