Make Go event APIs typed by default

[pirate]

Summary

• make Go EventBus.On, Emit, Find, and Filter the typed/default APIs
• add explicit *EventName variants for raw string and wildcard event-name flows
• replace old typed helper names in Go tests and docs, including docs snippets for event-name emission and lookup

Validation

• go test -count=1 ./... from abxbus-go
• git diff --check
• attempted pnpm dlx mintlify@latest broken-links, but Mintlify refused to run on Node 25.9.0 because it requires an LTS Node version

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Summary by cubic

Makes the Go event APIs typed by default for safer handlers and clearer ergonomics. EventBus.On, Find, and Filter now prefer typed payloads and predicates; string and wildcard flows use explicit *EventName methods. Adds runtime schema validation for typed payloads and results.

• Migration
  • Use On for typed handlers: func(TPayload), func(TPayload) (TResult, error), and context variants also work. On can infer the event name from the handler’s first param type via bus.On(handler). On panics if given "" or "*".
  • Use OnEventName for raw string names or "*" wildcard handlers that receive *BaseEvent.
  • Use Find/Filter in typed form: pass a typed event (zero value or instance) and optional where func(TPayload) bool. For string/wildcard, use FindEventName/FilterEventName.
  • Emit typed events with bus.Emit(MyEvent{...}); for raw names use EmitEventName/EmitEventNameWithContext. From inside handlers, prefer event.Emit(MyChildEvent{...}) or event.EmitEventName(...) for raw names.
  • Replace old helpers: OnTyped[...], NewBaseEventWithResult[...], and similar are superseded by NewEvent[T](name, payload, ResultType[R]()), MustNewEvent, and Event(payload).
  • Typed handlers now validate payloads/results at runtime; schema mismatches raise EventHandlerPayloadSchemaError/EventHandlerResultSchemaError.
  • JSONL bridge: use bridge.OnEventName for string/wildcard; bridge.On supports typed handlers.

^{Written for commit 5bcd08a. Summary will update on new commits.}