Refactor isOrganization check to service layer when fetching API resource by ID

[HasiniSama]

Proposed changes in this pull request

Fixes: wso2/product-is#23297

Refactor sub-organization logic check to the Service layer, before CacheBacked DAO layer, when fetching API resource by ID.

This ensures the cache only contains the root organization tenant domain cache entry.

Tested outflows:

• Retrieve Organization API Resource using root organization access token (Allowed)
• Retrieve Business API Resource using root organization access token (Allowed)
• Retrieve System API Resource using root organization access token (Allowed)
• Retrieve Tenant (Management) API Resource using root organization access token (Allowed)
• Retrieve Console feature API Resource using root organization access token (Allowed)
• Retrieve Organization API using a sub-organization access token (Allowed)
• Retrieve Business API using a sub-organization access token (Allowed)
• Retrieve System API Resource using sub-organization organization access token (Not Allowed)
• Retrieve Tenant (Management) API Resource using sub-organization organization access token (Not Allowed)
• Retrieve Console feature API Resource using sub-organization organization access token (Not Allowed)

Merged After

After: wso2/identity-organization-management-core#171

[codecov]

Codecov Report

Attention: Patch coverage is 95.23810% with 1 line in your changes missing coverage. Please review.

Project coverage is 47.28%. Comparing base (47429c7) to head (3275518).
Report is 30 commits behind head on master.

Files with missing lines	Patch %	Lines
...e/mgt/constant/APIResourceManagementConstants.java	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6566      +/-   ##
============================================
+ Coverage     47.26%   47.28%   +0.02%     
- Complexity    15408    15464      +56     
============================================
  Files          1751     1757       +6     
  Lines        105718   106136     +418     
  Branches      19961    20069     +108     
============================================
+ Hits          49965    50191     +226     
- Misses        48681    48851     +170     
- Partials       7072     7094      +22     

Flag	Coverage Δ
unit	30.64% <95.23%> (+0.06%)	⬆️

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PR builder started
Link: https://github.com/wso2/product-is/actions/runs/13585604265

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PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/13585604265
Status: success

[jenkins-is-staging]

Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/13585604265

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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