feat(aggregation): Add CardinalityAggregation

[MatusBoa]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 43d0c9a0-5d3f-40b1-a5d7-be90fa9aacf2

📥 Commits

Reviewing files that changed from the base of the PR and between 8b88077 and 5fa4cb3.

📒 Files selected for processing (7)

• AGENTS.md
• README.md
• src/Aggregation/AGENTS.md
• src/Aggregation/CardinalityAggregation.php
• src/Exception/Aggregation/InvalidPrecisionThresholdException.php
• tests/Integration/Aggregation/CardinalityAggregationTest.php
• tests/Unit/Aggregation/CardinalityAggregationTest.php

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat-cardinality-aggregation

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[coveralls]

Coverage Report for CI Build 24508720295

Coverage remained the same at 100.0%

Details

• Coverage remained the same as the base build.
• Patch coverage: 15 of 15 lines across 1 file are fully covered (100%).
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	459
Covered Lines:	459
Line Coverage:	100.0%
Coverage Strength:	10.84 hits per line

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💛 - Coveralls