v0.0.38 — MCP/CLI Onboarding Fixes

What's Changed

• docs(verify-mcp-cli): require a cold-browser /claim walk (found #4164) by @msywulak in #4165
• fix(web): make /claim public so MCP/CLI trials can claim (#4164) by @msywulak in #4166
• fix(4167): make atlas login browser device-approval work end-to-end by @msywulak in #4168
• refactor(mcp): retire misleading "SSE" naming — the hosted transport is Streamable HTTP by @msywulak in #4170

Full Changelog: v0.0.37...v0.0.38