v0.9.0

Key highlights:

• Realtime layer - dispatch actions from your server to connected clients with structured channels and pub/sub fan-out, all in pure Elixir
• Support for Elixir's with special form on the client
• AI assistant support - ships llms.txt, usage-rules.md, and mix holo.gen.agents_md / mix holo.gen.claude_md tasks so coding assistants understand Hologram's conventions
• New mix holo task to run your app - the Hologram compiler and runtime no longer start automatically in dev/test (behavior change)

Full release notes:
https://hologram.page/blog/hologram-v0-9