Synthesizes content from PRs #71, #76, #77, and #73 into one coherent set: - boxci-github-patch/SKILL.md: add sleek-specific defaults table (RID, GitHub URL), explicit 'prefer boxci over MCP create_patch' guidance (from #71) - radicle-patch/SKILL.md: rewrite as pointer to boxci-github-patch for cloud agents, with local/CI exception for direct git push rad (from #77) - environment.json: switch to .cursor/install.sh bootstrap (from #73) - .cursor/install.sh: full Cursor Cloud bootstrap script (from #73) - .cursor/rules/radicle-review-proposals.mdc: prefer boxci patches (from #73) Supersedes: #76, #71, #73