Add AQ Knowledge Distribution placeholders; add Division to treemap

[ricardovogel]

Added placeholders for knowledge distribution specifically.
Additionally: added "division" as a possible grouped_by placeholder in the treemap

[github-actions]

Test Results

232 tests  ±0   232 ✅ ±0   23s ⏱️ -1s
  1 suites ±0     0 💤 ±0 
  1 files   ±0     0 ❌ ±0 

Results for commit 0a845f6. ± Comparison against base commit 7fee42a.

♻️ This comment has been updated with latest results.

[github-actions]

Sigrid maintainability feedback

✅ You wrote maintainable code and achieved your objective of 3.0 stars.

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Sigrid compared your code against the baseline of 2026-03-18.

👍 What went well?

You fixed or improved 0 refactoring candidates.

👎 What could be better?

Unfortunately, 6 refactoring candidates were introduced or got worse.

Risk	System property	Location
🔴	Duplication (Introduced)	report-generator/src/report_generator/generator/data_models/portfolio/knowledge_distribution_portfolio.py line 23-43 report-generator/src/report_generator/generator/data_models/portfolio/architecture_portfolio.py line 23-43
🔴	Duplication (Introduced)	report-generator/src/report_generator/generator/data_models/portfolio/knowledge_distribution_portfolio.py line 58-66 report-generator/src/report_generator/generator/data_models/portfolio/architecture_portfolio.py line 58-66
🟠	Module Coupling (Worsened)	report-generator/src/report_generator/generator/placeholders/base.py
🟡	Unit Size (Introduced)	report-generator/src/report_generator/generator/placeholders/base.py ParameterizedPlaceholder.resolve(report)
🟡	Unit Complexity (Introduced)	report-generator/src/report_generator/generator/placeholders/base.py ParameterizedPlaceholder.resolve(report)
🟡	Unit Interfacing (Introduced)	report-generator/src/report_generator/generator/placeholders/images/treemap_image.py ArchitectureMetricPortfolioTreemapPlaceholder.value(metric,parameter,additional_parameter)

📚 Remaining technical debt

12 refactoring candidates didn't get better or worse, but are still present in the code you touched.

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⭐️ Sigrid ratings

System property	System on 2026-03-18	Before changes	New/changed code
Volume	5.0	N/A	N/A
Duplication	4.4	5.5	4.2
Unit Size	4.4	4.8	4.7
Unit Complexity	3.5	3.7	3.5
Unit Interfacing	2.9	2.1	2.2
Module Coupling	3.2	2.2	2.3
Component Independence	5.5	N/A	N/A
Component Entanglement	N/A	N/A	N/A
Maintainability	4.2	3.7	3.4

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Sigrid Open Source Health feedback

✅ You achieved your objective of having no open source vulnerabilities.

✅ You achieved your objective of having no open source libraries with license issues.

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Sigrid compared your code against the baseline of 2026-03-18.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarQube Cloud

[ricardovogel]

@maximjanssen
Did you implement average rating for the other AQ metrics too, or only the treemap?
Either way, I think the docs here are incorrect

[maximjanssen]

@ricardovogel I was halfway through making these changes when Floris and I decided to put this MR on hold until the v1 changes are done. That's why everything is a bit out of sync now.