Improve RDF format detection and validation, add SPARQL queries, multi‑tab validation UI, and i18n/typing updates

[mjanez]

This PR significantly enhances RDF validation capabilities, improves format auto-detection and error handling, introduces a multi-tab validation UI, adds SPARQL query functionality, and refines typing and localization. It also aligns namespaces and configuration, improves metric validators (including NTI-RISP-specific checks), and updates documentation and assets for better clarity.

Key changes

• RDF validation and format handling

  • Implemented RDF syntax validation in MQAService.
  • Enhanced syntax error messages in the App component and ValidationForm with user-friendly messages for common issues.
  • Improved auto-detection of RDF formats and refined syntax validation handling.
  • Added a conversion method for N-Triples.
  • Enhanced validation of NTI-RISP special vocabulary metrics.
  • Improved the SHACL report viewer.
  • Updated versioning related to validation.

• Vocabulary validation and typing

  • Corrected interoperability vocabulary validation.
  • Adjusted types to use uri (primary ID), value, and label.
  • Fixed checkVocabularyMatch to correctly validate vocabularies.
  • Improved vocabulary metric validators.
  • Added the ability to fetch vocabularies from GitHub.

• UI/UX

  • Implemented a multi-tab validation system with improved state management and UI components.
  • Increased tab width and name display area for better visibility.
  • Auto-switch to the Results tab after successful validation (with a slight delay for state updates).

• SPARQL functionality

  • Added a SPARQL query tab in the UI.
  • Introduced SPARQLService to manage predefined queries and execute them against endpoints.
  • Added PredefinedQueriesComponent to select and run predefined SPARQL queries.
  • Enhanced existing services to support SPARQL execution and validation.
  • Updated MQAConfig to include SPARQL configuration and parameters.
  • Added localization metric labels for SPARQL-related metrics.

• Internationalization and content

  • Added new translation keys for RDF syntax validation messages in English and Spanish.
  • Fixed non-translated text.
  • Removed hardcoded metric labels in favor of i18n files.

• Configuration, namespaces, and types

  • Updated index.ts types to include new evaluation settings and proportional evaluation fields in MQAConfig and QualityMetric interfaces.
  • Updated ValidationForm and ValidationResults to use the DCT namespace instead of DCTerms.
  • Modified mqa-config.json to reflect DCT (replacing DCTerms).
  • Adjusted ITBSHACLService and MQAService to accommodate the new namespace.
  • Enhanced RDFService to include DCT prefixes in RDF parsing.
  • General mqa-config improvements.
  • Added JSON resources and GitHub-based vocabulary retrieval.

• Docs and assets

  • Created/updated README and fixed image references.
  • Replaced react_app_1.png with an improved, clearer version.

• Housekeeping

  • Includes merge of latest changes from main (PR Align develop #5).

Labels

• bug, documentation, enhancement

Potential breaking/behavioral changes

• Namespace change from DCTerms to DCT across components and configuration.
• MQAConfig schema updated (SPARQL settings, evaluation settings, proportional evaluation fields). Consumers of the config/types may need to update accordingly.

How to test

• RDF validation
  • Validate RDF inputs in different formats and confirm auto-detection works.
  • Introduce known syntax errors to check improved, user-friendly error messages.
  • Verify N-Triples conversion and validation paths.
  • Check SHACL report rendering improvements.
• Vocabulary checks
  • Validate datasets using vocabularies and confirm corrected interoperability checks and vocabulary matching.
  • Verify NTI-RISP specific vocabulary metrics behave correctly.
• UI/UX
  • Use the multi-tab validation flow and confirm smoother state handling.
  • Observe tab width/name visibility improvements.
  • Run a successful validation and confirm the automatic switch to the Results tab.
• SPARQL
  • Open the SPARQL tab, select predefined queries, and execute against endpoints.
  • Confirm results handling and related metrics/localization.
• i18n and content
  • Switch languages and verify translations for RDF syntax messages and metric labels.
• Config and types
  • Review mqa-config.json updates (DCT usage, SPARQL settings).
  • Compile/build to ensure type changes are satisfied.
• Docs and assets
  • Open README and confirm images render correctly, including the updated react_app_1.png.