Improve Top-Level Project selection during project proposal creation
Improve the project proposal form to better help users select a top-level project (TLP).
Today, the form is configured to select a parent project, which is usually—but not always—a TLP. We should explore making TLP selection explicit while keeping parent project selection as a secondary step.
The default TLP can remain **Eclipse Technology**, but users should also be able to select another TLP when they already know the appropriate one. We should also explore suggesting a TLP based on context, such as the selected working group (e.g., Jakarta EE → EE4J, SDV → Eclipse Automotive).
If the correct TLP is not known, projects can continue to default to Eclipse Technology and be finalized later during incubation.
## Discussion points
* Make TLP selection explicit.
* Limit parent project choices to the selected TLP.
* Explore suggesting a TLP based on project context.
* Determine when the TLP should be finalized.
**Note:** The requirements are not yet finalized and require further discussion before implementation.
/cc @carmendelgado
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