Bring over AABB bht work (model + validation + healer tests) from cf200f0

.metadata/.plugins/org.eclipse.debug.ui/launchConfigurationHistory.xml

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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+            <launch memento="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#13;&#10;&lt;launchConfiguration local=&quot;true&quot; path=&quot;GeometryChecksWithAABBTest (2)&quot;/&gt;&#13;&#10;"/>
+            <launch memento="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#13;&#10;&lt;launchConfiguration local=&quot;true&quot; path=&quot;TestCityGmlAABB (1)&quot;/&gt;&#13;&#10;"/>
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+        <favorites/>
+    </launchGroup>
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.metadata/.plugins/org.eclipse.egit.core/.org.eclipse.egit.core.cmp/.project

+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>.org.eclipse.egit.core.cmp</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+	</buildSpec>
+	<natures>
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.metadata/.plugins/org.eclipse.egit.core/.org.eclipse.egit.core.cmp/.settings/org.eclipse.core.resources.prefs

+eclipse.preferences.version=1
+encoding/<project>=UTF-8

.metadata/.plugins/org.eclipse.help.ui/dialog_settings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<section name="Workbench">
+</section>

.metadata/.plugins/org.eclipse.help.ui/scope_sets/CeilingCheck.hist

+#Mon Oct 27 10:12:10 CET 2025
+__DEFAULT__=false
+expression=CeilingCheck
+org.eclipse.help.ui.localSearch.master=true

.metadata/.plugins/org.eclipse.help.ui/scope_sets/Default.pref

+#Tue Nov 25 12:25:50 CET 2025
+__DEFAULT__=true
+org.eclipse.help.ui.localSearch.master=true

.metadata/.plugins/org.eclipse.help.ui/scope_sets/LinaearRing.hist

+#Tue Nov 25 12:25:50 CET 2025
+__DEFAULT__=false
+expression=LinaearRing
+org.eclipse.help.ui.localSearch.master=true

.metadata/.plugins/org.eclipse.help.ui/scope_sets/checks.hist

+#Tue Nov 25 12:25:50 CET 2025
+__DEFAULT__=false
+expression=checks
+org.eclipse.help.ui.localSearch.master=true

.metadata/.plugins/org.eclipse.help.ui/scope_sets/checks_46_geometry.hist

+#Mon Oct 27 10:12:46 CET 2025
+__DEFAULT__=false
+expression=checks.geometry
+org.eclipse.help.ui.localSearch.master=true

.metadata/.plugins/org.eclipse.help.ui/scope_sets/de_46_hft_46_stuttgart_46_citydoctor2_46_checks_46_geometry.hist

+#Mon Oct 27 10:12:25 CET 2025
+__DEFAULT__=false
+expression=de.hft.stuttgart.citydoctor2.checks.geometry
+org.eclipse.help.ui.localSearch.master=true

.metadata/.plugins/org.eclipse.help.ui/scope_sets/src_47_test_47_resources_47_bht.hist

+#Sun Oct 26 18:13:07 CET 2025
+__DEFAULT__=false
+expression=src/test/resources/bht
+org.eclipse.help.ui.localSearch.master=true