feat: support local effect registration

[Pierre-MarieMarchio]

Description:

Implement the ability to register effects at the feature/module level, not just globally via provideEffects in the app config. Introduce the ability to:

• Register Effects locally within a Manager (like local Updators)
• Use ad-hoc Effects, passed directly into a dispatch call without prior registration

This gives developers more control over scoping and use cases such as isolated features or unit testing.

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Tasks:

• registration support
  • Ensure the manager keeps track of locally registered effects
  • Ensure locally registered effects are only active for actions dispatched by that manager
• Ad-hoc usage support
  • Ensure these effects are executed only for that call
  • They should not be globally registered or reused
• Priority & execution order
  • If extended later, allow future options for beforeUpdator execution
• Conflict handling
  • Conflict handling
  • Clearly define precedence and isolation rules

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Expected Outcome:

• Effects should be properly scoped to the Manager or ad-hoc usage, without interfering with global effects.
• Developers should have a clean way to use effects only within the scope of their immediate needs, allowing more flexibility in testing and state management.