Clear sharing policy store based on related resource deletion

[AnuradhaSK]

Purpose

Resource sharing policies and the attached attributes for them will be stored in a generic data model.

Hence Resource types and Attributes types related data stored in above database table don't have foreignkey references.

For eg: If a user is deleted, the user sharing policies stored in the above tables need to be cleared through post event hadler / event listener of user delete action.
Similarly, we have to handle any supported resource type or attribute type.

Currently used resources are Users. Attaching to user sharing policies roles are used as attributes.
So, adding an event handler subscribed to POST_DELETE_ROLE_V2_EVENT and POST_USER_DELETE events.

On organization deletion, clearing the resource policies will be handled due to foreign key restrictions.

Fix: wso2/product-is#22434

Related PRs

Depends on #422

[codecov]

Codecov Report

Attention: Patch coverage is 64.51613% with 11 lines in your changes missing coverage. Please review.

Project coverage is 49.21%. Comparing base (930b0f6) to head (1b6bc50).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
...OrganizationManagementHandlerServiceComponent.java	0.00%	6 Missing ⚠️
...anagement/handler/SharingPolicyCleanUpHandler.java	77.27%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #433      +/-   ##
============================================
+ Coverage     49.15%   49.21%   +0.06%     
- Complexity     1250     1258       +8     
============================================
  Files           142      143       +1     
  Lines          7873     7904      +31     
  Branches        972      973       +1     
============================================
+ Hits           3870     3890      +20     
- Misses         3679     3689      +10     
- Partials        324      325       +1     

Flag	Coverage Δ
unit	37.73% <64.51%> (+0.15%)	⬆️

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Link: https://github.com/wso2/product-is/actions/runs/12965704278

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Link: https://github.com/wso2/product-is/actions/runs/12965704278
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Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/12965704278