refactor(devtools): type message bus callbacks - #70823

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows the Angular commit guidelines
• Tests for the changes have been run
• No documentation changes are needed

PR Type

• Bugfix
• Feature
• Code style update
• Refactoring (no functional changes, no API changes)
• Build related changes
• Documentation content changes
• Other

What is the current behavior?

The DevTools message bus implementations use any casts when invoking event callbacks because the relationship between a callback and its argument tuple is not preserved at the invocation site.

PriorityAwareMessageBus also uses any for forwarded callback arguments.

What is the new behavior?

MessageBus now provides a typed invokeCallback helper that preserves the callback parameter tuple through Parameters<F>.

The DevTools message bus implementations use this helper instead of casting callbacks to any.

PriorityAwareMessageBus also types forwarded arguments as Parameters<Events[E]>, and ChromeMessageBus keeps the message topic tied to the same generic event key when invoking a callback.

This removes the unsafe callback casts while preserving the existing runtime behavior and public API.

Does this PR introduce a breaking change?

• Yes
• No