feat: project templates

[viktormarinho]

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Migration Notes

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Review Checklist

• PR title is clear and descriptive
• Changes are tested and working
• Documentation is updated (if needed)
• No breaking changes

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Summary by cubic

Adds project templates with a new create flow and onboarding wizard. Replaces the old Create Project dialog across the app and enables Projects in the sidebar.

• New Features

  • New Create Project dialog with categories, search, and actions (start from scratch, import placeholders).
  • Fetches templates from a bound registry (PROJECT_TEMPLATE_REGISTRY_BINDING) and renders a grid.
  • Onboarding wizard: overview, connections (binding selector for plugins), and project details. Creates the project and applies plugin connection configs.
  • New well-known binding and schemas for project templates; re-exported in bindings.
  • Replaces CreateProjectDialog usages in sidebar, shell layout, and projects list. ENABLE_PROJECTS is now true.

• Migration

  • Add an MCP connection that implements PROJECT_TEMPLATE_REGISTRY_BINDING with LIST/GET tools to surface templates.
  • If no registry is connected, the dialog shows an empty state; “Start from scratch” still works.
  • No database changes required.

^{Written for commit 0440ba1. Summary will update on new commits.}

[github-actions]

Release Options

Should a new version be published when this PR is merged?

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Reaction	Type	Next Version
👍	Prerelease	2.79.1-alpha.1
🎉	Patch	2.79.1
❤️	Minor	2.80.0
🚀	Major	3.0.0

Current version: 2.79.0

Deployment

• Deploy to production (triggers ArgoCD sync after Docker image is published)

[github-actions]

🧪 Benchmark

Should we run the Virtual MCP strategy benchmark for this PR?

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👍	Run quick benchmark (10 & 128 tools)

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