Emit log event and simplify editor shortcut configuration

[SteffenDE]

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[SteffenDE]

@josevalim draft because I have not yet decided on how to expose more log metadata

[SteffenDE]

(I'll send a PR to bump the minimum Elixir requirement and CI)

[josevalim]

@josevalim draft because I have not yet decided on how to expose more log metadata

My suggestion is to have a config :phoenix_live_reloader, :forward_metadata, [:foo, :bar]. That is sent as an additional metadata key. The keys must be encodable to json. Then we just do: metadata: Map.take(metadata, ...). By default, we can include agentic_prompt, application, registered_name, etc and a few others that may be useful.

[josevalim]

(I'll send a PR to bump the minimum Elixir requirement and CI)

I think last time we bumped everything to v1.14 (the earliest supported in the oldest ubuntu images).

[SteffenDE]

Should we just assume it's JSON encodable and let it crash if not?

I let it default to [] for now. tidewave_phoenix could then inject agentic_prompt.

[josevalim]

I let it default to [] for now. tidewave_phoenix could then inject agentic_prompt.

Sounds good. Or include :application.

Should we just assume it's JSON encodable and let it crash if not?

Yes. But let's document the configuration and document this behaviour!