Shared project context, SAM skills and Google Analytics.

## What's new

- Project context shared by SAM and MCP clients
  - Includes goals, positioning, competitors, key pages and writing preferences
- (Beta) OpenSEO skills inside SAM - MCP is still recommended for more powerful AI workflows.
- Lighthouse is opt-in for agent-run site audits
- Google Analytics organic traffic on the dashboard
- Google Analytics MCP tools

## Fixed

- Google Analytics reports work when the comparison period has no data.

Full Changelog: https://github.com/every-app/open-seo/compare/v0.1.5...v0.1.6