Refactor(core.Base): Harden config initialization order after v10 changes

Description

The introduction of the core.Config system in v10 revealed a subtle timing issue in core.Base#set(). The implicit order of operations could cause a public field's setter (set myField()) to execute before the new values of reactive configs (myConfig_) from the same update batch were fully processed and available.

This refactoring hardens the initialization logic within core.Base to make it more explicit and robust in the context of the new v10 config system.

Changes Made in src/core/Base.mjs

1. isConfig() Modified:

   • The method now checks for an active configController (me.configController?.isConfig(key)) before checking the prototype chain. This makes config detection more robust in the v10 architecture.

2. setFields() Modified:

   • This method's responsibility is now clearly defined: it identifies and immediately assigns simple public class fields (those without custom get/set accessors).

3. set() Refactored:

   • The set() method's logic has been re-orchestrated to process properties in a strict, explicit order that resolves the timing dependency:
     1. Public Fields (via setFields()): Simple, value-based public fields are assigned first.
     2. Reactive Configs: All reactive configs are processed next by adding them to the configSymbol and running processConfigs().
     3. Public Fields with Accessors: Fields with custom get()/set() methods are handled last. This guarantees their setters can now reliably access the final, updated values of all reactive configs from the same batch.
   • Comprehensive JSDoc and inline comments were added to document this new, explicit order of operations.

Benefit

This refactoring establishes a clear and predictable order of operations within set(), restoring the expected behavior and ensuring that config hooks and custom field setters have a consistent and correct view of the instance's state during a batched update.