fix: Support packages without Package_ prefix (RDFA-481)

[spah-soptim]

Description

Allows packages without the Package_ prefix.

The backend now preserves the raw package URI instead of rewriting Package_.
Frontend now hides the Package_ in the UI.

Test Checklist

General Behavior

• Components reload automatically when data changes
• Editing features are disabled in readonly datasets
• Dialogs pre-select current dataset/graph
• Required fields are validated in dialogs
• Discarding unsaved changes opens a discard cancel confirm dialog

Global MenuBar

• Navigate to home page works
• File menu:
  • Import → Graph/SHACL works
  • Export → Graph/SHACL works
  • Share Snapshot works
  • Delete → Dataset/Graph works
• Edit menu:
  • New → Class works
  • New → Package works
  • Edit/View → Create/Edit/View Ontology works
  • Edit/View → Package works
  • Undo/Redo (Ctrl+Z / Ctrl+Y) works
  • Enable/Disable editing works
  • Manage/View namespaces works
  • Delete → Ontology/Package works
• View menu:
  • Changelog opens and shows current graph
  • Compare Graphs opens
  • Full SHACL works
• Help menu:
  • Help link works
  • Submit Feedback link works
  • About navigation works

Welcome Page

• Navigation to Editor works
• Tips are displayed
• Security and data information displayed
• Copyright and version information displayed

Editor - MenuBar

• Search function works with all filters (All Datasets, Current Dataset, Current Graph, Current Package)
• Search finds classes, attributes, associations, packages
• "Enable Editing" button appears for readonly datasets

Editor - Navigation

• Hierarchical display (Datasets → Graphs → Packages) works
• Selection is highlighted
• Selecting a class does not change dataset/graph/package selection
• Class selection stays open/highlighted when switching dataset/graph/package
• Datasets and graphs are collapsible
• Single click selects; double click or chevron toggles expand/collapse
• State persists on reload (non-browser)
• Context menus act on the dataset/graph/package they were opened on
• Hover labels show prefixes when configured
• Dataset context menu:
  • Import graph works (disabled in readonly datasets)
  • Share Snapshot works
  • Enable/Disable editing works
  • Manage/View namespaces works
  • Delete dataset works
• Graph context menu:
  • New package works (disabled in readonly datasets)
  • Undo/Redo works (only enabled when available)
  • Create Ontology
  • Edit Ontology (View Ontology in readonly)
  • Delete Ontology
  • Changelog navigation works
  • Compare dialog works
  • SHACL import/export/full view works (import disabled in readonly datasets)
  • Export graph works
  • Delete graph works (disabled in readonly datasets)
• Package context menu:
  • Create new class works (disabled in readonly datasets)
  • View/Edit package works
  • Copy URL works
  • Delete package works (disabled for external/default packages and readonly datasets)
• Class context menu:
  • Open class (editor) works
  • SHACL works
  • Delete class works (disabled in readonly datasets)

Editor - Package View

• Class diagram displays correctly
• Moving nodes works and layout changes persist after reload
• Loading animation shows while loading
• Info cards show when no package or no classes available
• Drag and zoom diagram works
• "Reset View" button works
• "Filter View" works
• "Reset Layout" button resets diagram to auto-generated layout
• Click on class opens class editor

Editor - Class Editor

• Display and edit class properties: UUID (readonly), Label, Namespace, Package, Derived from, Abstract, Stereotypes, Attributes, Associations, Comment
• Delete class works
• Save changes works
• Discard changes works
• Attribute Editor works
• Association Editor works
• attribute/association SHACL View works
• Class SHACL View works

Prefixes Page

• View, add, remove and edit namespaces works

Changelog Page

• Select graph and display write operations works
• Operations shown in reverse chronological order
• Detailed view of changed triples works
• Restoring graph to a version works

Compare Page

• Compare two graphs works

[kiph-soptim]

• Creating a class in an imported package, the class is created in an external package named like the imported package
• When creating a package that has the same IRI as an already existing class, the package and the class are doubled displayed in the navigation

[spah-soptim]

Issue 1: Package and class doubled in navigation when sharing an IRI

Without the Package_ prefix on package URIs, creating a package whose URI matches an existing class produces a single RDF resource carrying both rdf:type rdfs:Class and rdf:type cims:ClassCategory. The class list query and package list query each picked it up, producing duplicate nav entries.

Fixed in QueryGraphService.java#getClassList: Add a FILTER NOT EXISTS { ?uri rdf:type cims:ClassCategory } to the class query so a resource that is also a package is shown only as the package.

Issue 2: Class created in a duplicate "external" package

The bug occurred for packages where the URI suffix (e.g. Package_Wires) differed from the rdfs:label literal (e.g. Wires). PackageMapper.toDTO was sourcing the DTO label from the literal rdfs:label while buildURI reconstructs the URI as prefix + label. The reconstructed URI (…#Wires) didn't match the actual package URI (…#Package_Wires), so newly created classes pointed to a non-existent resource that then surfaced as a separate "external" package with the same display name.

Fixed in PackageMapper.java: source DTO label from uri.suffix (and likewise for BelongsToCategoryDTO)

[kiph-soptim]

When creating a package that has the same IRI as an already existing class, the package is doubled displayed in the navigation and the class disappears. In the rendered diagram the class is still shown, but the class editor won't load