feat(xml): add FA(3) invoice builder with well-formed XML validation#35

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smekcio wants to merge 6 commits into

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feature/fa3-invoice-builder

Commits on Jul 8, 2026

feat(xml): add FA(3) invoice builder.

cgtms
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cursoragent
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fix(xml): use local relative paths in bundled FA(3) XSD schemas.

cgtms
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cursoragent
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refactor(xml): validate FA(3)/PEF XML with fast-xml-parser.

cgtms
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cursoragent
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fix(xml): clarify FA(3) well-formed validation API and edge cases.

cgtms
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cursoragent
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fix(xml): harden FA(3) builder dates, corrections, and raw Fa merge.

cgtms
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cursoragent
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fix(xml): preserve intra-EU transport flag and merge correction raw Fa keys.

cgtms
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cursoragent
committed