feat: add capabilities on aggregate

[arnaud-moncel]

Definition of Done

General

• Write an explicit title for the Pull Request, following Conventional Commits specification
• Test manually the implemented changes
• Validate the code quality (indentation, syntax, style, simplicity, readability)

Security

• Consider the security impact of the changes made

[qltysh]

2 new issues

Tool	Category	Rule	Count
qlty	Structure	Function with many parameters (count = 4): aggregate	1
qlty	Structure	Function with high complexity (count = 16): validateAggregation	1

[qltysh]

Coverage Impact

⬆️ Merging this pull request will increase total coverage on main by 0.01%.

Modified Files with Diff Coverage (2)

Rating	File	% Diff	Uncovered Line #s
	packages/datasource-toolkit/src/base-collection.ts	100.0%
	.../datasource-customizer/src/decorators/validation/collection.ts	100.0%
	Total	100.0%

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• Diff Coverage: Coverage for added or modified lines of code (excludes deleted files). Learn more.

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• File Coverage: Covered Lines divided by Covered Lines plus Missed Lines. (Excludes non-executable lines including blank lines and comments.)

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