Define PubSub and Subscription interfaces in the core via package with
a vianats sub-package providing the embedded NATS + JetStream
implementation. Expose c.Publish() and c.Subscribe() on Context with
automatic subscription cleanup on session close. Refactor the NATS
chatroom example to use the built-in methods instead of manual
subscription tracking.
Flatten DatastarConfig struct into Options (DatastarContent, DatastarPath)
and replace datastarHandlerRegistered bool with sync.Once for thread safety.
Allow users to provide their own Datastar.js script (e.g., Datastar Pro
or custom builds) via Via's Options configuration. Adds DatastarConfig
struct with Content ([]byte) and Path (string) fields.
* Remove unused method. Don't panic if unknown room.
* Need a Connected() check for rooms publishing - don't do the work of rendering for a dead connection
* Make vars private.
* Linter issues
* Remove Connected()
* Mutation observer. Publish 4x / second.
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Co-authored-by: João Gonçalves <joao.goncalves01@gmail.com>