Feat/danfse local generation

[YvesCesar]

Summary

Replaces ADN-API DANFSe retrieval with local PDF generation from the authorized NFS-e XML. getDanfse() no longer makes a network call, it renders the document locally (HTML → PDF via dompdf), including the public-consultation QR code and IBGE municipality lookup. Adds a new Danfse\ subsystem, unit tests, and an NFS-e fixture.

Why

The ADN DANFSe generation API is sunset on 2026-07-01 (RTC Nota Técnica 008). Keeping that dependency would leave getDanfse broken after that date. Generating the PDF locally from the XML we already hold (ReceiptData::$rawXml, returned by emit/query) removes the network dependency, drops latency and a failure point, and keeps the feature working past the sunset.

Changes

Local DANFSe generation (new src/Danfse/ subsystem)

• DanfseGenerator — orchestrates XML parse → authorized-NFS-e validation → HTML render → PDF (dompdf), wrapping failures in ArtifactException.
• XmlToArray — converts the national XML into an associative array, skipping the digital signature (xmldsig namespace).
• DanfseTemplate + template.php — build and render the layout (issuer, taker, intermediary, service, municipal/federal taxation, totals, QR code, homologação watermark).
• Formatter — Brazilian formatting (CNPJ/CPF, phone, CEP, currency, dates, taxation code).
• Data\Municipios — municipality lookup by IBGE code.
• Domain enums: OpSimpNac, RegApTribSN, RegEspTrib, TpRetISSQN, TribISSQN, Ambiente.
• Optional presentation config: DanfseConfig, MunicipalityBranding, LogoLoader (provider / municipality logo).

[YvesCesar]

@vitormattos finalizei os ajustes da rodada de revisões.