v3.0.0

v3.0.0 - Anthropic Marketplace Submission

Added

• Remote HTTP MCP server connection (app.keeperhub.com/mcp)
• OAuth 2.0 browser-based authentication
• API key fallback for headless/CI environments
• 4 auto-invoked skills: workflow-builder, template-browser, execution-monitor, plugin-explorer
• 2 slash commands: /keeperhub:login, /keeperhub:status
• Marketplace configuration for self-hosted distribution
• CI validation workflow for plugin structure
• SECURITY.md, CHANGELOG.md, CONTRIBUTING.md

Changed

• Migrated from local CLI to remote HTTP MCP endpoint
• Simplified installation to single marketplace add + plugin install
• Reframed all descriptions for Anthropic Software Directory Policy compliance