112 add xml export and rework xml import

[odungern]

• Improved the CASCaRA XML import
• Added the CASCaRA XML export
• changed from localStorage to indexedDB for persistence in the browser ... the former is too restrained in data volume.

[Copilot]

🟡 Changes recommended

Two TypeScript files contain invalid comment delimiters that will break compilation, and several import UIs show a persistence warning that no longer matches the IndexedDB storage mechanism.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

This PR extends CASCaRA’s interchange capabilities by adding a CASCaRA XML export, tightening/adjusting XML import handling and tests, and migrating browser persistence from localStorage to IndexedDB to support larger datasets.

Changes:

• Add a new CASCaRA XML export UI/plugin and update sample XML test artifacts.
• Rework XML import expectations (notably enumerations and idRef list wrappers) and update unit tests accordingly.
• Replace localStorage-based package persistence with IndexedDB-backed persistence and adjust app bootstrap + import/export flows.

File summaries

File	Description
tests/unit/pig-package-constraints-valueRanges.spec.ts	Updates XML enumeration tag naming in tests.
tests/unit/pig-metaclasses-xml.spec.ts	Updates metaclasses XML import tests to new list/idRef wrapper form and adds assertions.
tests/data/XML/21/Very_Simple_Model_(FMC)_with_Requirements.cas.xml.other	Adds/updates sample XML in alternative structure for regression/reference.
tests/data/XML/21/Very_Simple_Model_(FMC)_with_Requirements.cas.xml	Adds/updates sample XML in cas:aPackage structure.
tests/data/XML/21/Very Simple Model (FMC) with Requirements.cas.xml.new	Removes prior “.new” sample.
tests/data/XML/21/Very Simple Model (FMC) with Requirements.cas.xml	Removes prior sample with spaces in filename.
src/stores/package-cache.ts	Migrates persistence from localStorage to IndexedDB; adds initialization semantics and stronger persistence verification.
src/plugins/import/xml/import-xml.vue	Uses “Replace” semantics and calls cache replacement; adjusts error formatting.
src/plugins/import/xml/import-any-xml.vue	Same as above for “any XML” import flow.
src/plugins/import/reqif/import-reqif.vue	Same as above for ReqIF import flow.
src/plugins/import/jsonld/import-jsonld.vue	Same as above for JSON-LD import flow.
src/plugins/import/fmi/import-fmi.vue	Same as above for FMI import flow.
src/plugins/export/xml/mount-export-xml.ts	Adds plugin mount for XML export UI.
src/plugins/export/xml/export-xml.vue	Adds XML export dialog/UI and write-to-file flow.
src/plugins/export/ttl/export-ttl.vue	Removes redundant “load cache from storage” logic after bootstrap loading.
src/plugins/export/neo4j-api/export-neo4j.vue	Removes redundant “load cache from storage” logic after bootstrap loading.
src/plugins/export/jsonld/export-jsonld.vue	Removes redundant “load cache from storage” logic and adjusts getJSONLD call signature.
src/plugins/export/cypher/export-cypher.vue	Removes redundant “load cache from storage” logic after bootstrap loading.
src/main.ts	Loads package cache from persistent storage before mounting the app.
src/components/PageInterfaces.vue	Adjusts UI panel heights.
src/components/PageDocument.vue	Switches from cache.get() to synchronous cache.packages (aligned with pre-mount loading).
src/common/schema/pig/ts/pig-package-constraints.ts	Tightens typing around link instances for enumerated-link validation.
src/common/schema/pig/ts/pig-metaclasses.ts	Enhances XML-to-JSON conversion (idRef list wrappers, property/link parsing, normalization).
src/common/lib/helpers.ts	Improves typing for isArrayWithContent.
src/common/lib/definitions.ts	Adjusts minimum ID length.
src/common/import/xml/import-xml.ts	Adjusts XML import schema checks and error messaging logic.
src/common/import/reqif/import-reqif.ts	Improves error attribution and schema-check reporting.
src/common/import/fmi/import-fmi.ts	Removes unused logging import.
src/common/export/ttl/getTTL.ts	Minor signature change to ontology definition generation.
src/common/export/jsonld/getJSONLD.ts	Removes/parks options interface and simplifies export signature.
src/build-info.ts	Updates generated build metadata.
src/App.vue	Switches navigation items from href to router to.
public/assets/xslt/ReqIF-to-CAS.xsl	Tweaks generated title text formatting.
public/assets/xsd/skos.xsd	Adds minimal SKOS schema subset.
public/assets/xsd/rdf.xsd	Adds minimal RDF schema subset.
public/assets/xsd/Entity.xsd	Adds partial XSD for CASCaRA Entity metamodel XML.
public/assets/xsd/dcterms.xsd	Adds minimal Dublin Core Terms schema subset.
public/assets/xsd/common-types.xsd	Adds shared XSD types (IDs, idRef list wrapper).
public/assets/xml/cas-package.xsd	Removes previous monolithic XSD.
package.json	Bumps version.
package-lock.json	Updates lockfile version metadata.

Review details

• Files reviewed: 41/44 changed files
• Comments generated: 8
• Review effort level: Lite

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[toddkleber]

Done testing all ready for merge!

[toddkleber]

All done testing, all good!