Public community generator registry

[mathieusouflis]

Problem statement

Community generators written for dot cannot be shared or discovered. There is no registry.

Proposed solution

Build a public registry for community generators with dot generator publish, dot generator install, and dot generator search/info/update.

Alternatives considered

No response

Area

Core

Additional context

Children:

• [Decision] Registry infrastructure (GitHub-based index vs dedicated service)
• dot generator publish
• dot generator install (with checksum verification + version pinning)
• dot generator search/info/update