v2026.1.2 - Milestone 2 for v2026.3.0

What's Changed

• [cleanup] Inline StepVerifier logic in GVBorderNodePortCreationTests by @theogiraudet in #1914
• [1870] Hide compartments of elements dropped from the explorer by @mcharfadi in #1892
• [cleanup] Inline StepVerifier logic in GVEdgeCreationTests by @theogiraudet in #1919
• [cleanup] Inline StepVerifier logic in GVBindingConnectorAsUsageTests & GVConnectionUsageEdgeTests by @theogiraudet in #1913
• [cleanup] Use ServiceMethod instead of getSelfServiceCallExpression by @AxelRICHARD in #1925
• [cleanup] Inline StepVerifier logic in GVDNTest by @theogiraudet in #1921
• [cleanup] Inline StepVerifier logic in GVEdgeItemUsageTests by @theogiraudet in #1922
• [cleanup] Inline StepVerifier logic in GVEdgePortUsageTests by @theogiraudet in #1923
• [cleanup] Change annotations of GVEdgeReferenceSubsettingTest by @theogiraudet in #1924
• [cleanup] Inline StepVerifier logic in GVFlowUsageTests by @theogiraudet in #1926
• [cleanup] Reintroduce services in previous reworked tests by @theogiraudet in #1927
• [cleanup] Inline StepVerifier logic in GVDropFromExplorerTests by @theogiraudet in #1928
• [cleanup] Inline StepVerifier logic in ActionFlowTests by @theogiraudet in #1936
• [cleanup] Use ServiceMethod instead of getSelfServiceCallExpression by @AxelRICHARD in #1937
• [cleanup] Inline StepVerifier logic in various General View test classes by @theogiraudet in #1939
• [cleanup] Inline StepVerifier logic in various General View test classes 2 by @theogiraudet in #1940
• [cleanup] Inline StepVerifier logic in various General View test classes 3 by @theogiraudet in #1941
• [cleanup] Inline StepVerifier logic in various General View test classes 4 by @theogiraudet in #1944
• [cleanup] Inline StepVerifier logic in GVSNSCTests and cleanup deprecated by @theogiraudet in #1950
• [1943] Add attributes compartment on ConnectionDef graphical node by @AxelRICHARD in #1952
• [1946] Add actors compartment inside a RequirementUsage graphical node by @AxelRICHARD in #1958
• [1953] Import error on TransitionUsage with SendActionUsage by @adaussy in #1955
• [1947] Add "subjects" as a graphical nodes by @AxelRICHARD in #1961
• [1954] Implement textual export of TransitionUsage by @adaussy in #1964
• [1966] Implement textual export of ExhibitStateUsage by @adaussy in #1967
• Add edge tools related to nesting Attribute usage by @gcoutable in #1965
• [releng] Switch to Sirius Web 2026.1.2 by @AxelRICHARD in #1969
• [releng] Bump version to 2026.1.2 by @AxelRICHARD in #1971

Full Changelog: v2026.1.1...v2026.1.2